US20010013364A1 - Apparatus and method for controllably delivering fluid to a second fluid stream - Google Patents
Apparatus and method for controllably delivering fluid to a second fluid stream Download PDFInfo
- Publication number
- US20010013364A1 US20010013364A1 US09/840,061 US84006101A US2001013364A1 US 20010013364 A1 US20010013364 A1 US 20010013364A1 US 84006101 A US84006101 A US 84006101A US 2001013364 A1 US2001013364 A1 US 2001013364A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- enclosure
- release
- fluid stream
- predetermined condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims description 18
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 17
- 239000003570 air Substances 0.000 claims description 15
- 239000013543 active substance Substances 0.000 claims description 13
- 238000009472 formulation Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 11
- -1 whiteners Substances 0.000 claims description 11
- 230000003213 activating effect Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000007844 bleaching agent Substances 0.000 claims description 5
- 239000003205 fragrance Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 claims description 4
- 102000004190 Enzymes Human genes 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 claims description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000003599 detergent Substances 0.000 claims description 4
- 239000002979 fabric softener Substances 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000002386 air freshener Substances 0.000 claims description 3
- 239000004599 antimicrobial Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 235000013305 food Nutrition 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 239000002917 insecticide Substances 0.000 claims description 3
- 239000002304 perfume Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000008233 hard water Substances 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 238000004900 laundering Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 7
- 230000009182 swimming Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229940088598 enzyme Drugs 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 108091005804 Peptidases Proteins 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 2
- 239000002216 antistatic agent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011262 electrochemically active material Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0363—For producing proportionate flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2499—Mixture condition maintaining or sensing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2499—Mixture condition maintaining or sensing
- Y10T137/2509—By optical or chemical property
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2514—Self-proportioning flow systems
- Y10T137/2521—Flow comparison or differential response
- Y10T137/2526—Main line flow displaces or entrains material from reservoir
Definitions
- the present invention relates in general to fluid delivery, and more particularly, to an apparatus and an associated method for controllably releasing fluids into a fluid stream in a desired environment, such as, for example, in a laundering appliance and a vehicle climate control system.
- the device for introducing a first fluid into a second fluid stream comprises an enclosure and means for causing the release of the first fluid.
- the enclosure releasably retains the first fluid.
- the release causing means releases the first fluid from the enclosure into the second fluid stream upon association with a predetermined condition associated with the second fluid stream.
- the release causing means comprises an electrochemical gas generating cell associated with the enclosure.
- the release causing means may comprise a mechanically activated chemical gas generating cell.
- the enclosure may comprise a semi gas permaeable enclosure.
- the release causing means comprises the force of gravity associated with the semi gas permeable fluid enclosure.
- the predetermined condition may include any one of humidity, temperature, pH, conductivity, pressure and/or combustion.
- the enclosure includes a moveable member capable of altering the volume of the enclosure and an opening.
- the opening is associated with the enclosure and with the second fluid stream. Movement of the moveable member directs the first fluid through the opening.
- the moveable member comprises a flexible membrane associated with the enclosure.
- the moveable member comprises a piston slidably positionable within the enclosure.
- the release causing means includes electronic circuitry which is capable of detecting a predetermined condition associated with the second fluid stream.
- the release causing means further includes at least one sensor associated with the second fluid and the electronic circuitry.
- the sensors can be selected from the group consisting of pH sensors, temperature sensors, humidity sensors, hard water sensors, air quality sensors and pressure sensors.
- the release causing means may further include at least one switch actuatable by a user upon association with a predetermined condition associated with the second fluid stream.
- the second fluid stream may be any of the following fluids: oxygen, air and water based fluids.
- the first fluid may be any one of the following fluids: laundry formulations, such as liquid bleach, enzyme solutions, surfactants, concentrated detergents, water softeners, sud-controlling agents, whiteners, perfumes, corrosion inhibitors, bluing agents, antiseptic agents, fabric softeners, starch, pre-soaks, and mixtures thereof; mildew retardants; fragrances; air fresheners; plant foods; chlorine solutions, water softener chemical solutions; and insecticides.
- laundry formulations such as liquid bleach, enzyme solutions, surfactants, concentrated detergents, water softeners, sud-controlling agents, whiteners, perfumes, corrosion inhibitors, bluing agents, antiseptic agents, fabric softeners, starch, pre-soaks, and mixtures thereof
- mildew retardants such as liquid bleach, enzyme solutions, surfactants, concentrated detergents, water softeners, sud-controlling agents, whiteners, perfumes
- a system may be assembled which utilizes a combination of at least two of the devices in conjunction with each other.
- the invention further includes a method for introducing a first fluid into a second fluid stream.
- the method includes the steps of providing an enclosure for releasably retaining the first fluid, providing a second fluid stream, and causing the release of the first fluid from the enclosure into the second fluid stream upon association of the second fluid stream with a predetermined condition.
- the method further includes the step of sensing a condition associated with the second fluid stream through at least one sensor associated with the second fluid stream.
- the step of causing the release of the first fluid comprises the step of moving a moveable member which is associated with the enclosure, to, in turn, release the first fluid into the second fluid stream.
- the step of moving a moveable member comprises the step of actuating an electrochemical gas generating cell associated with the moveable member.
- FIG. 1 is a front view of a device of the present invention
- FIG. 2 is a back view of the device of the preceding figure
- FIG. 3 is a side view of the device of the preceding two figures
- FIG. 4 is a front view of a case for use with the device of the preceding three figures.
- FIG. 5 is a back view of the case of the preceding figure
- FIG. 6 is a side view of the case of the preceding two figures, with the device placed therein;
- FIG. 7 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment is full of laundering formulation
- FIG. 8 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment has been partially emptied of laundering formulation
- FIG. 9 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment is empty of laundering formulation
- FIG. 10 is a sectional view of a portion of the case taken along section line 10 - 10 of FIG. 6;
- FIG. 11 is a stylized cut-away side-view of the case portion of the preceding figure.
- FIG. 12 is a schematic of the laundering environment used in association with the device according to the present invention.
- FIG. 13 is a perspective view of a washing machine having the device of the present invention.
- FIG. 14 is a cut-away perspective view of a clothes dryer showing heated air flow through the dryer, and, having the device of the present invention
- FIG. 15 is a side view of a vehicle having the device of the present invention.
- FIG. 16 is a schematic of the device according to the present invention as used in a vehicle climate control environment
- FIG. 17 is a side view of the device according to the present invention as used in a swimming pool environment
- FIG. 18 is a perspective view of the device according to the present invention as used in a plant environment
- FIG. 19 is a perspective view of the device according to the present invention as used in a water softener environment
- FIG. 20 is a partial side elevational view of the device showing in particular the volatility precluding means
- FIG. 21 is a sectional view of the device including a mechanically activated chemical gas generating cell.
- FIG. 22 is a perspective view of another embodiment of the device according to the present invention as used in a plant environment.
- Device 20 for introducing a first fluid into a second fluid stream is shown in FIG. 1 as comprising enclosure 21 and means 23 (FIG. 2) for causing the release of the first fluid into the second fluid stream upon [detection of] association with a predetermined condition associated with the second fluid.
- the fluid release causing means comprises, in part, an electrochemical cell. It will be understood, and it will be explained herein, that the fluid release causing means is not limited to the use of electrochemical cells, nor the use of any particular structure associated therewith.
- device 20 includes front and back bowl-shaped shell members or halves 22 , 24 which are associated with one another about respective flat, outer rims 26 , 28 . These rims 26 , 28 circumferentially define bowl-shaped portions 30 , 32 of shells 22 , 24 .
- Shells 22 , 24 are generally rigid, and preferably made of a material such as polypropylene, BAREXTM 210 or 218 , poly(vinylidene chloride) (“PVDC”), polyethyltriacetate (“PETA”), poly(ethylene terephthalate) (“PET”), high density polyethylene (“HDPE”), or mixtures thereof.
- PVDC poly(vinylidene chloride)
- PETA polyethyltriacetate
- PET poly(ethylene terephthalate)
- HDPE high density polyethylene
- the thickness of the shells will typically range from about 0.13 millimeters (0.005 inches) to about 2.5 mm (0.1 inch).
- the bowl-shaped portions will (together) perferably define a volume of from about 0.2 cc to about five (5) liters.
- the shell members are preferably transparent or translucent. As will be explained, the structure of the shell members serves to define enclosure 21 which releasably retains the first fluid prior to introduction of the first fluid into the fluid stream.
- the depicted front shell 22 (FIG. 1) has channel 34 formed in a portion of its otherwise flat outer rim 26 .
- This channel 34 runs from the cavity of bowl 30 to aperture 36 formed in rim 26 .
- this aperture 36 feeds a spout, injector, conduit or similar device for delivering a liquid or runny gel laundering formulation which is contained within a reservoir partially defined by bowl 30 .
- Aperture 36 and preferably channel 34 are formed into lobe 38 of flat outer rim 26 .
- spout 44 On the upper portion of front shell 22 is spout 44 or an equivalent device. This spout delivers the first fluid contained within the reservoir of the device to the second fluid stream.
- spout 44 may additionally include means 121 for precluding excessive volatility of the fluid, where the fluid within device 20 comprises a volatile material.
- Volatility preclusion means comprises shutoff member 122 which is associated with spout 44 .
- the shutoff member comprises a material having a suitable thermal expansion coefficient. Such materials include, but are not limited to, metals, such as aluminum, silver and copper, as well as other materials such as paraffins (waxes) and rubberized materials.
- shutoff member 122 expands due to the temperature.
- shutoff member 122 expands to such an extent that it essentially crimps spout 44 .
- the fluid is retained in enclosure 21 and substantially precluded from exiting the enclosure.
- other precluding means are likewise contemplated for use, such as manual crimp members as well as electronic shutoff valves and the like.
- Back shell 24 has outer (FIG. 2) and inner perimeters of the flat outer rim generally corresponding in size and shape to the outer and inner perimeters of flat outer shell 26 respectively. Back shell 24 also has lobe 40 generally corresponding in size and shape to lobe 38 of front shell 24 .
- a moisture impermeable, gas permeable well 46 sized to accommodate a portion of an electrochemical cell 48 (FIGS. 7 - 9 ).
- This well 46 may have apertures 94 or vents formed therein.
- a glass or silicone bead 50 is preferably used to seal electrochemical cell 48 to back shell 24 .
- the electrochemical cell comprises the means for causing the release of the first fluid.
- the release causing means is actuated upon association of predetermined condition with the second fluid stream.
- the predetermined condition may generally comprises electronic circuitry, as well as various sensors.
- electrochemical cells capable of generating gases such as oxygen (O 2 ), hydrogen, nitrogen, halogen (e.g. Cl 2 , bromine, iodine), carbon dioxide, and mixtures thereof are known. See, e.g., U.S. Pat. Nos. 4,402,817 and 4,522,698 to Maget (Jun. 11, 1985) which describe electrochemical cells.
- gases such as oxygen (O 2 ), hydrogen, nitrogen, halogen (e.g. Cl 2 , bromine, iodine), carbon dioxide, and mixtures thereof.
- gases such as oxygen (O 2 ), hydrogen, nitrogen, halogen (e.g. Cl 2 , bromine, iodine), carbon dioxide, and mixtures thereof. See, e.g., U.S. Pat. Nos. 4,402,817 and 4,522,698 to Maget (Jun. 11, 1985) which describe electrochemical cells.
- Such cells include solid polymer electrolyte-based oxygen or hydrogen generators, zinc-air type hydrogen
- a voltage gradient established across the electrochemical cell ionizes an electrochemically active material (e.g. atmospheric oxygen) at an electrode, transporting the ions through an electrolytic membrane to the other electrode, and reconverts the ions to molecules of the electrochemically active material which evolved at the second electrode.
- a resistor may be placed between the electrodes of the cell.
- front and back shells 22 , 24 are associated with one another (e.g. by adhering them together).
- sandwiched between two shells 22 , 24 is a flexible, movable membrane 52 .
- Membrane 52 is sized to cover the opening of the entire “bowl section” 30 , 32 of two shells, 22 , 24 so as to form chambers 54 , 56 .
- Chamber 54 defines enclosure 21 for releasably retaining the first fluid.
- Membrane 52 prevents liquid communication between two chambers 54 , 56 .
- the membrane also extends over lobes 38 , 40 (FIGS. 1 and 2) of shells 22 , 24 including channel 34 (FIG. 1) and associated aperture 36 (FIG. 1) in the front shell.
- a movable member such as flexible membrane 52 can be formed of materials which are more or less impermeable to the gas produced by the cell, and substantially impermeable to any liquid contained within front chamber 54 .
- Such materials generally include films such as metallized, partially metallized or non-metallized PETA, PET, PVDC, BAREXTM 210 or 218 , metallized or partially metallized polypropylene, metallized or partially metallized polyethylene glycol, or mixtures thereof.
- FIGS. 4 - 6 A preferred housing or case, such as case 58 , for containing device 20 is shown in FIGS. 4 - 6 .
- the depicted case like the cartridge, has a front shell 60 and back shell 62 .
- the case is generally sized and shaped to accept or encase an appropriately sized cartridge.
- the depicted front case shell 60 has an aperture 64 , or a plurality of apertures, to allow passage of a gas therethrough (FIG. 4), and to allow bowl 30 of an encased cartridge to protrude therethrough (FIG. 6).
- the aperture may be covered by a grate, mesh, or similar structure (not shown).
- back case shell 62 also has apertures 68 , 70 , 72 to accommodate back bowl portion 32 of the cartridge. Such apertures may likewise be modified as previously described with regard to the front shell case.
- frame or bracket 74 for maintaining case 58 and any encased cartridge affixed to the laundering appliance may be attached through various means, such as, for example a bolt, screw, VELCROTM strip, or equivalent which is associated with bracket portion 76 and the laundering appliance.
- the depicted back case shell 62 also has a housing portion 78 for containing electrochemical cell 48 . This housing portion 78 may also contain electrical circuitry which is hereinafter described with respect to FIGS. 10 - 12 .
- Back and front case shells 60 , 62 are associated together in a clam shell-type arrangement with, for example, a hinge 66 and hinge pin 80 (FIG. 6). Shells 60 , 62 pivot about hinge pin 80 and may fixedly interact with one another by use of, for example a latch or clasp 82 . In such a manner, a cartridge may be placed within “open” hinged shell halves 60 , 62 , and case 58 then shut to house device 20 .
- the gas generating cell is affixed to the case, and interacts with a cartridge pump that is not associated with an electrochemical cell until it is placed in the case.
- a cylindrical member could alternatively be used as an enclosure for releasably retaining the first fluid.
- an alternative structure such as a piston placed within the cylinder could be used (not shown).
- the piston would preferably have means such as cylinder rings or a seal for fluidically separating the two chambers.
- other enclosures for the cartridge are likewise contemplated for use.
- the release causing means may include, a solenoid or a motor that is capable of moving the movable member that is associated with enclosure 21 /chamber 54 for retaining the first fluid.
- the solenoid or upon actuation of the motor (which is based upon the detection of a predetermined condition relative to the second fluid stream)
- the first fluid is released from enclosure 21 /chamber 54 into the second fluid stream.
- device 20 is equally applicable in a multitude of other environments including, but certainly not limited to, swimming pools, HVAC systems, plant feeding systems, water softener systems, etc.
- front chamber 54 of device 20 is preferably pre-filled with a laundering formulation, such as an enzymatic pre-soak mixed with a solvent such as water (FIG. 7).
- a laundering formulation such as an enzymatic pre-soak mixed with a solvent such as water (FIG. 7).
- the thus filled device is inserted into back shell half 62 so that lobe 38 , 40 fits within the portion of the back shell designed to accept it and so that electrochemical cell 48 interacts with electrodes 90 , 92 positioned within cell housing 78 .
- the cell housing may have apertures formed therein. Such placement completes an electrical circuit between electrochemical cell 48 and circuitry 83 associated with the laundering appliance.
- Case 58 is then closed and clasp 82 associated with front shell half 60 interacts with back shell half 62 and retains two halves 60 , 62 together encasing cartridge 20 . If cap 88 has been placed over spout 44 , it is then removed, thus exposing the interior of the spout to the local laundering environment.
- means for detecting a predetermined condition includes analyzing circuit 84 associated with, for example, a sensor or sensors 85 A, 85 B such as a temperature sensor and a water-hardness or pH sensor placed in washing machine tub 86 filled with fabric and fabric treatment solution (e.g. a water and detergent mixture).
- the analyzing circuit 84 may be a microprocessor and /or dedicated hardware.
- the circuitry monitors the laundering process and adjusts the amount and timing of the introduction of laundering formulation into the laundering process accordingly.
- Analyzing circuit 84 may also be associated with a switch 87 for manually actuating device 20 so that if the user detects a predetermined condition, the user may actuate device 20 .
- release causing means 23 is actuated, and, gas is generated by electrochemical cell 48 .
- the gas passes through well 46 in outer shell bowl 32 through, for example, an aperture 94 formed therein.
- the gas entering back chamber 56 causes the back chamber to increase in volume, thus moving flexible membrane 52 and decreasing the size of the front chamber 54 of enclosure 21 (FIG. 8).
- This decrease in size in front chamber 54 of enclosure 21 drives liquid contained therewithin to pass upwards through channel 34 and to spout 44 .
- the liquid is injected out of a tunnel or lumen formed in spout 44 and into the laundering environment.
- a spout is not used and the device is associated with a conduit which receives laundering formulation from the pump and delivers it to the laundering process.
- front chamber 54 eventually empties, and, if desired, the entire device/cartridge can be replaced.
- case 58 or cases 58 ′, housing device 20 are placed so as to be in the heater air stream used to dry the clothes or other fabric.
- the cases are preferably placed in a position which is relatively easily accessible by the dryer's user.
- compositions which may be incorporated into the cartridge of such an embodiment used in the laundering environment include liquid bleach (e.g. an alkaline 5-6% sodium hypochlorite solution or other solution that produces from about 50 to about 200 ppm available chlorine in the aqueous solution in the tub or drum solution); enzymes (e.g. Bacillus-derived, serine-active alkaline proteolytic enzymes or other protease); surfactants or surfactant solutions (e.g. sodium stearate or sodium dodecylbenzene sulfonate); concentrated detergents; water softeners (e.g.
- liquid bleach e.g. an alkaline 5-6% sodium hypochlorite solution or other solution that produces from about 50 to about 200 ppm available chlorine in the aqueous solution in the tub or drum solution
- enzymes e.g. Bacillus-derived, serine-active alkaline proteolytic enzymes or other protease
- surfactants or surfactant solutions e.g. sodium stearate
- builders such as phosphate or carbonate); suds-controlling agents; whiteners; perfumes; corrosion inhibitors; bluing; antiseptic agents (e.g. organic tin salt solutions, carbanilides, or salicylanilides); fabric softeners (e.g. quaternary ammonium compounds); anti-wrinkling or antistatic agents, starches; pre-soaks, and the like.
- antiseptic agents e.g. organic tin salt solutions, carbanilides, or salicylanilides
- fabric softeners e.g. quaternary ammonium compounds
- anti-wrinkling or antistatic agents starches; pre-soaks, and the like.
- more than one of device 20 may be used.
- one device 20 could be sized to accept an enzyme pre-soak, while another of a preferably different size may be selected to contain bleach.
- device 20 may be associated with the climate control system of a vehicle.
- device 20 will be able to controllably administer a fluid in association with the operating air flow stream of the climate control of the vehicle upon detection of a predetermined condition.
- the use of device 20 shown in FIGS. 7 - 9 may be utilized wherein front chamber 54 of enclosure 21 of device 20 is preferably pre-filled with any one of a multitude of different fluids which may include an aromatic fragrance, an air freshener, an air disinfectant, and a mildew retardant, in any one of a liquid, vaporous and/or gaseous state.
- the device may be positioned into a cartridge which is then inserted into the vehicle so as to be associated with the vehicle's climate control system in such a manner that enclosure 20 for releasably retaining a first fluid is capable of transmission to the second air stream of the climate control system.
- Device 20 may be positioned so that it is readily replaceable at regular service intervals, such as when the vehicle is having its oil changed.
- several devices each having different fluids therein may be utilized simultaneously in a vehicle environment.
- this embodiment likewise includes means for detecting a predetermined condition relative to the second fluid stream which comprises analyzing circuit 84 which controls the operation of device 20 in the climate control system.
- Analyzing circuit 84 is associated with sensors 185 A and 185 B (these sensors may comprise various particulate sensing apparatuses, temperature sensors, humidity sensors, etc.) which are placed in the air stream of the climate control system.
- other detecting means such as timers or other means for actuating device 20 such as manual switch 87 , may be associated with analyzing circuit 84 .
- the analyzing circuit may be separate from the control circuitry of the vehicle climate control system, or it may be incorporated therewith.
- the release causing means is actuated and in this embodiment, gas is generated by the electrochemical gas generating cell 48 .
- the generated gas moves flexible membrane 52 , which decreases the size of front chamber 54 of enclosure 21 , and, in turn, directs fluid within the front chamber (the enclosure) into the airflow stream of the climate control system.
- other release causing means are contemplated for use, such as piston/cylinder arrangements which are actuated by an electrochemical gas generating cell, a solenoid or a motor, among others.
- several cartridges can be used so as to facilitate the release of various fluids into the air flow of the climate control system.
- device 20 may be used in a swimming pool environment.
- the detection means comprises analyzing circuitry 84 which, through sensors 285 A, 285 B , may analyze the chlorine concentration as well as such parameters as the pH of the water.
- a predetermined condition such as for example, a low chlorine level
- release causing means 23 (FIG. 7) is actuated, and, the chlorine contained in the enclosure is injected into the water of the swimming pool.
- Device 20 may be positioned proximate the swimming pool's water circulating pump so as to increase the circulation of any released fluids.
- Device 20 may likewise be utilized in association with the operation of a water softener.
- sensors such as sensor 288 A, which are associated with analyzing circuitry of the detection means of such an embodiment, may include those which measure quantities of constituents in the water which are attributable to “hard” water.
- device 20 may include fluids having chemicals which “soften” water.
- the release causing means is directed to release a desired quantity of a “softening” agent from the enclosure into the water.
- device 20 may be positioned in such a manner so as to be easily replaceable by the user upon depletion of the fluid contained therein.
- device 20 may be used in association with a plant feeding system.
- device 20 may be positioned so as to direct fluid as needed into a water stream, upon watering of the soil.
- the fluid contained in the enclosure of device 20 may include a type of plant food, or, a type of plant insecticide.
- the detecting means comprises analyzing circuitry 84 and sensors 289 A, 289 B, such as those which sense the hydration of the soil, or particular attributes of the soil.
- the release causing means is actuated and the desired amounts of the fluid are directed out of the spout of the cartridge and into the water which is entering into the soil.
- device 20 may likewise be used in association with various environments in addition to those disclosed above.
- it may be used in association with the HVAC system of a home or office, to interject fragrance, germ killing fluids or any other fluids into the air stream of the system.
- the pump may be used in association with carpet cleaners/steamers, wherein the pump is capable of introducing various fluids into the fluid/cleaning stream, such as special stain wash agents, or carpet conditioners.
- the user and environments in which device 20 may be used are substantially limitless.
- the release causing means may comprise a mechanically activated chemical gas generating cell.
- the release causing means may comprise a mechanically activated chemical gas generating cell 223 , as shown in FIG. 21.
- the mechanically activated chemical gas generating cell comprises the mechanical introduction of a predetermined amount of active agent 111 with means 113 for activating the active agent.
- the activating means is mechanically introduced to the active agent.
- the introduction results in a reaction which generates a gas.
- the gas that is generated expands into back shell 24 and moves flexible membrane 52 .
- the active agent may comprise sodium azide
- the activating means may comprise a spark generating apparatus.
- the spark when the spark is activated in the presence of the sodium azide, the sodium azide chemically decomposes to form a gas. Subsequently, the gas expands into back shell 24 and moves flexible membrane 52 .
- the active agent may comprise sodium carbonate and the activating means may comprise, for example, citric acid.
- the citric acid and the carbonate may be separated, for example, by a frangible membrane, and the device may include means for puncturing or fracturing the frangible membrane to cause the mixing of the materials.
- the mixing of the materials causes the generation of carbon dioxide.
- the generated carbon dioxide gas expands into back shell 24 and moves flexible membrane 52 . It will be understood that other chemical reactions which generate a gas are likewise contemplated for use, and, that the invention is not limited to the particular chemical reactions identified herein.
- the active agent may comprise calcium hydride and the activation means may comprise, for example, water or humidity.
- the calcium hydride may be separated from water/humidity. As the calcium hydride is exposed to water/humidity either directly or through a water permeable membrane, hydrogen gas is generated. The generated gas exerts pressure on the first fluid and causes it to dispense into the second fluid stream.
- the active agent may comprise a hydrazine solution and the activating means may comprise a noble metal catalyst. Any of such embodiments, as shown in FIG. 22, may be used in association with a delivery system for use in association with delivering a fluid to a plant.
- the enclosure retaining the first fluid may comprise a semi gas permeable fluid enclosure.
- the release causing means comprises the force of gravity associated with the semi gas permeable fluid enclosure. For example, when the temperature of the second fluid reaches a certain level, the first fluid is able to permeate through the semi gas permeable fluid enclosure into the second fluid by gravity. As such upon association of the predetermined temperature condition, the first fluid is released into the second fluid stream.
- the predetermined condition may not be temperature, rather, the predetermined condition may comprise any one of humidity, pH, conductivity, pressure and/or combustion. Any such predetermined condition associated with the second fluid can serve to cause the release of the first fluid from the enclosure.
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Abstract
Description
- 1. Field of the Invention
- The present invention relates in general to fluid delivery, and more particularly, to an apparatus and an associated method for controllably releasing fluids into a fluid stream in a desired environment, such as, for example, in a laundering appliance and a vehicle climate control system.
- 2. Background Art
- During certain processes, it may be desirable to add various formulations to the working fluid (liquid or gaseous) stream or medium. For instance, during the washing process for a laundering appliance, it may be desirable to add pre-soaks, fabric softeners, bleaching agents, or anti-wrinkling formulations to the water. Likewise, during the drying process, it may be desirable to add an anti-static agent or anti-wrinkling formulation to the circulation. As another example, in a vehicle, it is often desirable to release a sanitizing agent or a fragrance into the circulating air in the climate control system of the vehicle.
- Usually, the addition of such fluids into the working medium requires the operator to measure out an appropriate amount of the particular desired formulation and to introduce it to the fluid. This process invariably involves some mess, and involves more than a little judgment which may need to take into account many variables. In the environment of a laundering apparatus, these variables include load size, type of fabric, softness of water, and the particular wash or dry cycle chosen. Similar problems are associated with the introduction of fluids into the air supply of a vehicle, as well as the introduction of fluids into fluid streams in a multitude of other environments.
- Thus, it would be an improvement in the art to have a relatively straight-forward way of adding the appropriate amount of fluid to the working fluid of a device in the desired environment.
- The device for introducing a first fluid into a second fluid stream comprises an enclosure and means for causing the release of the first fluid. The enclosure releasably retains the first fluid. The release causing means releases the first fluid from the enclosure into the second fluid stream upon association with a predetermined condition associated with the second fluid stream.
- In a preferred embodiment, the release causing means comprises an electrochemical gas generating cell associated with the enclosure. In another preferred embodiment, the release causing means may comprise a mechanically activated chemical gas generating cell.
- In yet another preferred embodiment, the enclosure may comprise a semi gas permaeable enclosure. In such an embodiment the release causing means comprises the force of gravity associated with the semi gas permeable fluid enclosure.
- In another preferred embodiment, the predetermined condition may include any one of humidity, temperature, pH, conductivity, pressure and/or combustion.
- In another preferred embodiment, the enclosure includes a moveable member capable of altering the volume of the enclosure and an opening. The opening is associated with the enclosure and with the second fluid stream. Movement of the moveable member directs the first fluid through the opening.
- In such a preferred embodiment, the moveable member comprises a flexible membrane associated with the enclosure. In another such embodiment, the moveable member comprises a piston slidably positionable within the enclosure.
- In another preferred embodiment, the release causing means includes electronic circuitry which is capable of detecting a predetermined condition associated with the second fluid stream. In such an embodiment, the release causing means further includes at least one sensor associated with the second fluid and the electronic circuitry. The sensors can be selected from the group consisting of pH sensors, temperature sensors, humidity sensors, hard water sensors, air quality sensors and pressure sensors. In addition, in a preferred embodiment, the release causing means may further include at least one switch actuatable by a user upon association with a predetermined condition associated with the second fluid stream.
- In a preferred embodiment, the second fluid stream may be any of the following fluids: oxygen, air and water based fluids. Preferably, the first fluid may be any one of the following fluids: laundry formulations, such as liquid bleach, enzyme solutions, surfactants, concentrated detergents, water softeners, sud-controlling agents, whiteners, perfumes, corrosion inhibitors, bluing agents, antiseptic agents, fabric softeners, starch, pre-soaks, and mixtures thereof; mildew retardants; fragrances; air fresheners; plant foods; chlorine solutions, water softener chemical solutions; and insecticides.
- In one embodiment of the invention, a system may be assembled which utilizes a combination of at least two of the devices in conjunction with each other.
- The invention further includes a method for introducing a first fluid into a second fluid stream. The method includes the steps of providing an enclosure for releasably retaining the first fluid, providing a second fluid stream, and causing the release of the first fluid from the enclosure into the second fluid stream upon association of the second fluid stream with a predetermined condition.
- In a preferred embodiment, the method further includes the step of sensing a condition associated with the second fluid stream through at least one sensor associated with the second fluid stream.
- In another preferred embodiment, the step of causing the release of the first fluid comprises the step of moving a moveable member which is associated with the enclosure, to, in turn, release the first fluid into the second fluid stream.
- In yet another preferred embodiment, the step of moving a moveable member comprises the step of actuating an electrochemical gas generating cell associated with the moveable member.
- FIG. 1 is a front view of a device of the present invention;
- FIG. 2 is a back view of the device of the preceding figure;
- FIG. 3 is a side view of the device of the preceding two figures;
- FIG. 4 is a front view of a case for use with the device of the preceding three figures.
- FIG. 5 is a back view of the case of the preceding figure;
- FIG. 6 is a side view of the case of the preceding two figures, with the device placed therein;
- FIG. 7 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment is full of laundering formulation;
- FIG. 8 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment has been partially emptied of laundering formulation;
- FIG. 9 is a sectional view of the device of FIGS. 1 through 3 wherein the reservoir compartment is empty of laundering formulation;
- FIG. 10 is a sectional view of a portion of the case taken along section line10-10 of FIG. 6;
- FIG. 11 is a stylized cut-away side-view of the case portion of the preceding figure;
- FIG. 12 is a schematic of the laundering environment used in association with the device according to the present invention;
- FIG. 13 is a perspective view of a washing machine having the device of the present invention;
- FIG. 14 is a cut-away perspective view of a clothes dryer showing heated air flow through the dryer, and, having the device of the present invention;
- FIG. 15 is a side view of a vehicle having the device of the present invention;
- FIG. 16 is a schematic of the device according to the present invention as used in a vehicle climate control environment;
- FIG. 17 is a side view of the device according to the present invention as used in a swimming pool environment;
- FIG. 18 is a perspective view of the device according to the present invention as used in a plant environment;
- FIG. 19 is a perspective view of the device according to the present invention as used in a water softener environment;
- FIG. 20 is a partial side elevational view of the device showing in particular the volatility precluding means;
- FIG. 21 is a sectional view of the device including a mechanically activated chemical gas generating cell; and
- FIG. 22 is a perspective view of another embodiment of the device according to the present invention as used in a plant environment.
- While this invention is susceptible of embodiment in many different forms, there is shown herein in the drawings and will be described in detail several specific embodiments, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the embodiments illustrated.
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Device 20 for introducing a first fluid into a second fluid stream is shown in FIG. 1 as comprisingenclosure 21 and means 23 (FIG. 2) for causing the release of the first fluid into the second fluid stream upon [detection of] association with a predetermined condition associated with the second fluid. In the embodiment shown and described herein, the fluid release causing means comprises, in part, an electrochemical cell. It will be understood, and it will be explained herein, that the fluid release causing means is not limited to the use of electrochemical cells, nor the use of any particular structure associated therewith. - Specifically, as shown in FIGS. 1 through 3,
device 20 includes front and back bowl-shaped shell members orhalves outer rims rims portions shells Shells enclosure 21 which releasably retains the first fluid prior to introduction of the first fluid into the fluid stream. - The depicted front shell22 (FIG. 1) has
channel 34 formed in a portion of its otherwise flatouter rim 26. Thischannel 34 runs from the cavity ofbowl 30 toaperture 36 formed inrim 26. As more thoroughly described herein, thisaperture 36 feeds a spout, injector, conduit or similar device for delivering a liquid or runny gel laundering formulation which is contained within a reservoir partially defined bybowl 30.Aperture 36 and preferablychannel 34 are formed intolobe 38 of flatouter rim 26. - On the upper portion of
front shell 22 is spout 44 or an equivalent device. This spout delivers the first fluid contained within the reservoir of the device to the second fluid stream. - In one embodiment of the invention, as shown in FIG. 20,
spout 44 may additionally include means 121 for precluding excessive volatility of the fluid, where the fluid withindevice 20 comprises a volatile material. Volatility preclusion means comprisesshutoff member 122 which is associated withspout 44. The shutoff member comprises a material having a suitable thermal expansion coefficient. Such materials include, but are not limited to, metals, such as aluminum, silver and copper, as well as other materials such as paraffins (waxes) and rubberized materials. In operation, as the temperature of the environment rises,shutoff member 122 expands due to the temperature. At a predetermined temperature,shutoff member 122 expands to such an extent that it essentially crimpsspout 44. At such time, the fluid is retained inenclosure 21 and substantially precluded from exiting the enclosure. Of course, other precluding means are likewise contemplated for use, such as manual crimp members as well as electronic shutoff valves and the like. - Back
shell 24 has outer (FIG. 2) and inner perimeters of the flat outer rim generally corresponding in size and shape to the outer and inner perimeters of flatouter shell 26 respectively. Back shell 24 also haslobe 40 generally corresponding in size and shape to lobe 38 offront shell 24. - Formed in
back shell 24 is preferably a moisture impermeable, gas permeable well 46 sized to accommodate a portion of an electrochemical cell 48 (FIGS. 7-9). This well 46 may have apertures 94 or vents formed therein. A glass orsilicone bead 50 is preferably used to sealelectrochemical cell 48 to backshell 24. As will be explained, the electrochemical cell comprises the means for causing the release of the first fluid. The release causing means is actuated upon association of predetermined condition with the second fluid stream. In certain embodiments, the predetermined condition may generally comprises electronic circuitry, as well as various sensors. - Generally, electrochemical cells capable of generating gases such as oxygen (O2), hydrogen, nitrogen, halogen (e.g. Cl2, bromine, iodine), carbon dioxide, and mixtures thereof are known. See, e.g., U.S. Pat. Nos. 4,402,817 and 4,522,698 to Maget (Jun. 11, 1985) which describe electrochemical cells. Such cells include solid polymer electrolyte-based oxygen or hydrogen generators, zinc-air type hydrogen gas generating batteries (see, e.g., U.S. Pat. Nos. 5,245,565 to Winsel (Sep. 7, 1993) or 4,023,648 to Orlitzky et al.), Cu (OH)2 or carbonate-based oxygen generating cells, NaSiCON-based CO2/O2 generating cells (see, co-owned, co-pending application U.S. Ser. No. 08/413,635 filed on Mar. 30, 1995), or nitrogen generating batteries (see, e.g., U.S. Pat. No. 5,427,870 (Jun. 27, 1995)). The contents of all of these referenced patents and patent application are incorporated herein by reference. Some cells require separate power sources (e.g. a battery), while others are self-powered.
- As described in U.S. Pat. No. 4,902,278, a voltage gradient established across the electrochemical cell ionizes an electrochemically active material (e.g. atmospheric oxygen) at an electrode, transporting the ions through an electrolytic membrane to the other electrode, and reconverts the ions to molecules of the electrochemically active material which evolved at the second electrode. A resistor may be placed between the electrodes of the cell.
- As shown in FIG. 3, front and
back shells shells movable membrane 52.Membrane 52 is sized to cover the opening of the entire “bowl section” 30, 32 of two shells, 22, 24 so as to formchambers Chamber 54, in turn, definesenclosure 21 for releasably retaining the first fluid.Membrane 52 prevents liquid communication between twochambers lobes 38, 40 (FIGS. 1 and 2) ofshells - A movable member such as
flexible membrane 52 can be formed of materials which are more or less impermeable to the gas produced by the cell, and substantially impermeable to any liquid contained withinfront chamber 54. Such materials generally include films such as metallized, partially metallized or non-metallized PETA, PET, PVDC, BAREX™ 210 or 218, metallized or partially metallized polypropylene, metallized or partially metallized polyethylene glycol, or mixtures thereof. - A preferred housing or case, such as
case 58, for containingdevice 20 is shown in FIGS. 4-6. The depicted case, like the cartridge, has afront shell 60 andback shell 62. The case is generally sized and shaped to accept or encase an appropriately sized cartridge. - The depicted
front case shell 60 has anaperture 64, or a plurality of apertures, to allow passage of a gas therethrough (FIG. 4), and to allowbowl 30 of an encased cartridge to protrude therethrough (FIG. 6). In addition, the aperture may be covered by a grate, mesh, or similar structure (not shown). - As shown in FIGS. 5 & 6,
back case shell 62 also hasapertures bowl portion 32 of the cartridge. Such apertures may likewise be modified as previously described with regard to the front shell case. In the depicted embodiment, frame orbracket 74 for maintainingcase 58 and any encased cartridge affixed to the laundering appliance, may be attached through various means, such as, for example a bolt, screw, VELCRO™ strip, or equivalent which is associated withbracket portion 76 and the laundering appliance. The depicted backcase shell 62 also has ahousing portion 78 for containingelectrochemical cell 48. Thishousing portion 78 may also contain electrical circuitry which is hereinafter described with respect to FIGS. 10-12. - Back and
front case shells hinge 66 and hinge pin 80 (FIG. 6).Shells hinge pin 80 and may fixedly interact with one another by use of, for example a latch orclasp 82. In such a manner, a cartridge may be placed within “open” hinged shell halves 60, 62, andcase 58 then shut to housedevice 20. - In an alternative embodiment (not shown), the gas generating cell is affixed to the case, and interacts with a cartridge pump that is not associated with an electrochemical cell until it is placed in the case.
- Instead of the “shell” design depicted in FIGS.1-3 and 7-9, a cylindrical member could alternatively be used as an enclosure for releasably retaining the first fluid. In such a case, instead of using a flexible membrane as the movable member, an alternative structure such as a piston placed within the cylinder could be used (not shown). In that case, the piston would preferably have means such as cylinder rings or a seal for fluidically separating the two chambers. Of course, other enclosures for the cartridge are likewise contemplated for use.
- In addition, in other embodiments of the invention, the release causing means may include, a solenoid or a motor that is capable of moving the movable member that is associated with
enclosure 21/chamber 54 for retaining the first fluid. Thus, upon energizing of the solenoid, or upon actuation of the motor (which is based upon the detection of a predetermined condition relative to the second fluid stream), the first fluid is released fromenclosure 21/chamber 54 into the second fluid stream. - The operation and function of the above-identified device is explained below with respect to a clothes washing and clothes drying environment, as well as with respect to the operation of a vehicle climate control. It will be understood, and as likewise explained below,
device 20 is equally applicable in a multitude of other environments including, but certainly not limited to, swimming pools, HVAC systems, plant feeding systems, water softener systems, etc. - Specifically, in use in association with
clothes washer 96,front chamber 54 ofdevice 20 is preferably pre-filled with a laundering formulation, such as an enzymatic pre-soak mixed with a solvent such as water (FIG. 7). The thus filled device is inserted intoback shell half 62 so thatlobe electrochemical cell 48 interacts withelectrodes cell housing 78. The cell housing may have apertures formed therein. Such placement completes an electrical circuit betweenelectrochemical cell 48 andcircuitry 83 associated with the laundering appliance.Case 58 is then closed andclasp 82 associated withfront shell half 60 interacts withback shell half 62 and retains twohalves cartridge 20. Ifcap 88 has been placed overspout 44, it is then removed, thus exposing the interior of the spout to the local laundering environment. - As shown in FIG. 12, means for detecting a predetermined condition includes analyzing
circuit 84 associated with, for example, a sensor orsensors washing machine tub 86 filled with fabric and fabric treatment solution (e.g. a water and detergent mixture). The analyzingcircuit 84 may be a microprocessor and /or dedicated hardware. The circuitry monitors the laundering process and adjusts the amount and timing of the introduction of laundering formulation into the laundering process accordingly. Analyzingcircuit 84 may also be associated with aswitch 87 for manually actuatingdevice 20 so that if the user detects a predetermined condition, the user may actuatedevice 20. - When the corresponding condition is detected, release causing means23 is actuated, and, gas is generated by
electrochemical cell 48. Once generated, the gas passes through well 46 inouter shell bowl 32 through, for example, an aperture 94 formed therein. The gas entering backchamber 56 causes the back chamber to increase in volume, thus movingflexible membrane 52 and decreasing the size of thefront chamber 54 of enclosure 21 (FIG. 8). This decrease in size infront chamber 54 ofenclosure 21 drives liquid contained therewithin to pass upwards throughchannel 34 and to spout 44. The liquid is injected out of a tunnel or lumen formed inspout 44 and into the laundering environment. In an alternative embodiment, a spout is not used and the device is associated with a conduit which receives laundering formulation from the pump and delivers it to the laundering process. As shown in FIG. 9,front chamber 54 eventually empties, and, if desired, the entire device/cartridge can be replaced. - In a clothes dryer environment,
case 58 orcases 58′,housing device 20, are placed so as to be in the heater air stream used to dry the clothes or other fabric. The cases are preferably placed in a position which is relatively easily accessible by the dryer's user. - Compositions which may be incorporated into the cartridge of such an embodiment used in the laundering environment include liquid bleach (e.g. an alkaline 5-6% sodium hypochlorite solution or other solution that produces from about 50 to about 200 ppm available chlorine in the aqueous solution in the tub or drum solution); enzymes (e.g. Bacillus-derived, serine-active alkaline proteolytic enzymes or other protease); surfactants or surfactant solutions (e.g. sodium stearate or sodium dodecylbenzene sulfonate); concentrated detergents; water softeners (e.g. “builders” such as phosphate or carbonate); suds-controlling agents; whiteners; perfumes; corrosion inhibitors; bluing; antiseptic agents (e.g. organic tin salt solutions, carbanilides, or salicylanilides); fabric softeners (e.g. quaternary ammonium compounds); anti-wrinkling or antistatic agents, starches; pre-soaks, and the like.
- Also, more than one of
device 20 may be used. For example, onedevice 20 could be sized to accept an enzyme pre-soak, while another of a preferably different size may be selected to contain bleach. - In another embodiment, as shown in FIGS. 15 and 16,
device 20 may be associated with the climate control system of a vehicle. In such an embodiment,device 20 will be able to controllably administer a fluid in association with the operating air flow stream of the climate control of the vehicle upon detection of a predetermined condition. - In operation of such an embodiment, the use of
device 20 shown in FIGS. 7-9 may be utilized whereinfront chamber 54 ofenclosure 21 ofdevice 20 is preferably pre-filled with any one of a multitude of different fluids which may include an aromatic fragrance, an air freshener, an air disinfectant, and a mildew retardant, in any one of a liquid, vaporous and/or gaseous state. As shown in FIG. 15, the device may be positioned into a cartridge which is then inserted into the vehicle so as to be associated with the vehicle's climate control system in such a manner thatenclosure 20 for releasably retaining a first fluid is capable of transmission to the second air stream of the climate control system.Device 20 may be positioned so that it is readily replaceable at regular service intervals, such as when the vehicle is having its oil changed. In addition, it is contemplated that several devices each having different fluids therein, may be utilized simultaneously in a vehicle environment. - As shown in FIG. 16, this embodiment likewise includes means for detecting a predetermined condition relative to the second fluid stream which comprises analyzing
circuit 84 which controls the operation ofdevice 20 in the climate control system. Analyzingcircuit 84 is associated withsensors device 20 such asmanual switch 87, may be associated with analyzingcircuit 84. The analyzing circuit may be separate from the control circuitry of the vehicle climate control system, or it may be incorporated therewith. - When a predetermined condition is detected, as shown in FIGS.7-9, the release causing means is actuated and in this embodiment, gas is generated by the electrochemical
gas generating cell 48. In particular, the generated gas movesflexible membrane 52, which decreases the size offront chamber 54 ofenclosure 21, and, in turn, directs fluid within the front chamber (the enclosure) into the airflow stream of the climate control system. Of course, as explained above with respect to the laundering apparatus, other release causing means are contemplated for use, such as piston/cylinder arrangements which are actuated by an electrochemical gas generating cell, a solenoid or a motor, among others. In addition, several cartridges can be used so as to facilitate the release of various fluids into the air flow of the climate control system. - In another embodiment, as shown in FIG. 17,
device 20 may be used in a swimming pool environment. In such an embodiment, the detection means comprises analyzingcircuitry 84 which, throughsensors Device 20 may be positioned proximate the swimming pool's water circulating pump so as to increase the circulation of any released fluids. -
Device 20, as shown in FIG. 19, may likewise be utilized in association with the operation of a water softener. For example, sensors, such assensor 288A, which are associated with analyzing circuitry of the detection means of such an embodiment, may include those which measure quantities of constituents in the water which are attributable to “hard” water. In such an embodiment,device 20 may include fluids having chemicals which “soften” water. Thus, when a predetermined condition is detected, such as “hard” water, the release causing means is directed to release a desired quantity of a “softening” agent from the enclosure into the water. In such an embodiment,device 20 may be positioned in such a manner so as to be easily replaceable by the user upon depletion of the fluid contained therein. - In yet another embodiment, as shown in FIG. 18,
device 20 may be used in association with a plant feeding system. In particular,device 20 may be positioned so as to direct fluid as needed into a water stream, upon watering of the soil. The fluid contained in the enclosure ofdevice 20 may include a type of plant food, or, a type of plant insecticide. In such an embodiment, the detecting means comprises analyzingcircuitry 84 andsensors proximate device 20, if a predetermined condition is detected by the detecting means and fluid contained in the cartridge is needed, the release causing means is actuated and the desired amounts of the fluid are directed out of the spout of the cartridge and into the water which is entering into the soil. - As explained,
device 20 may likewise be used in association with various environments in addition to those disclosed above. For example, it may be used in association with the HVAC system of a home or office, to interject fragrance, germ killing fluids or any other fluids into the air stream of the system. In addition, the pump may be used in association with carpet cleaners/steamers, wherein the pump is capable of introducing various fluids into the fluid/cleaning stream, such as special stain wash agents, or carpet conditioners. The user and environments in whichdevice 20 may be used are substantially limitless. - It will be understood that in any of the above-identified embodiments, the release causing means may comprise a mechanically activated chemical gas generating cell. For example, in place of electrochemical
gas generating cell 48 shown in FIG. 7, the release causing means may comprise a mechanically activated chemicalgas generating cell 223, as shown in FIG. 21. More specifically, as shown in FIG. 21, the mechanically activated chemical gas generating cell comprises the mechanical introduction of a predetermined amount of active agent 111 withmeans 113 for activating the active agent. Thus, when directed, the activating means is mechanically introduced to the active agent. The introduction results in a reaction which generates a gas. The gas that is generated expands intoback shell 24 and movesflexible membrane 52. - For example, the active agent may comprise sodium azide, and the activating means may comprise a spark generating apparatus. In such an embodiment, when the spark is activated in the presence of the sodium azide, the sodium azide chemically decomposes to form a gas. Subsequently, the gas expands into
back shell 24 and movesflexible membrane 52. - As another example, the active agent may comprise sodium carbonate and the activating means may comprise, for example, citric acid. In such an embodiment, the citric acid and the carbonate may be separated, for example, by a frangible membrane, and the device may include means for puncturing or fracturing the frangible membrane to cause the mixing of the materials. The mixing of the materials causes the generation of carbon dioxide. The generated carbon dioxide gas expands into
back shell 24 and movesflexible membrane 52. It will be understood that other chemical reactions which generate a gas are likewise contemplated for use, and, that the invention is not limited to the particular chemical reactions identified herein. - As another example, the active agent may comprise calcium hydride and the activation means may comprise, for example, water or humidity. In such an embodiment, the calcium hydride may be separated from water/humidity. As the calcium hydride is exposed to water/humidity either directly or through a water permeable membrane, hydrogen gas is generated. The generated gas exerts pressure on the first fluid and causes it to dispense into the second fluid stream. In yet another embodiment, the active agent may comprise a hydrazine solution and the activating means may comprise a noble metal catalyst. Any of such embodiments, as shown in FIG. 22, may be used in association with a delivery system for use in association with delivering a fluid to a plant.
- In yet another embodiment, the enclosure retaining the first fluid may comprise a semi gas permeable fluid enclosure. In such an embodiment, the release causing means comprises the force of gravity associated with the semi gas permeable fluid enclosure. For example, when the temperature of the second fluid reaches a certain level, the first fluid is able to permeate through the semi gas permeable fluid enclosure into the second fluid by gravity. As such upon association of the predetermined temperature condition, the first fluid is released into the second fluid stream.
- In other embodiments, the predetermined condition may not be temperature, rather, the predetermined condition may comprise any one of humidity, pH, conductivity, pressure and/or combustion. Any such predetermined condition associated with the second fluid can serve to cause the release of the first fluid from the enclosure.
- The foregoing description and drawings merely explain and illustrate the invention and the invention is not limited thereto except insofar as the appended claims are so limited, as those skilled in the art who have the disclosure before them will be able to make modifications and variations therein without departing from the scope of the invention.
Claims (29)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/840,061 US6415808B2 (en) | 1999-01-27 | 2001-04-23 | Apparatus and method for controllably delivering fluid to a second fluid stream |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/238,334 US6220267B1 (en) | 1999-01-27 | 1999-01-27 | Apparatus and method for controllably delivering fluid to a second fluid stream |
US09/840,061 US6415808B2 (en) | 1999-01-27 | 2001-04-23 | Apparatus and method for controllably delivering fluid to a second fluid stream |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/238,334 Continuation US6220267B1 (en) | 1999-01-27 | 1999-01-27 | Apparatus and method for controllably delivering fluid to a second fluid stream |
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US20010013364A1 true US20010013364A1 (en) | 2001-08-16 |
US6415808B2 US6415808B2 (en) | 2002-07-09 |
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US09/238,334 Expired - Fee Related US6220267B1 (en) | 1999-01-27 | 1999-01-27 | Apparatus and method for controllably delivering fluid to a second fluid stream |
US09/840,061 Expired - Lifetime US6415808B2 (en) | 1999-01-27 | 2001-04-23 | Apparatus and method for controllably delivering fluid to a second fluid stream |
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US09/238,334 Expired - Fee Related US6220267B1 (en) | 1999-01-27 | 1999-01-27 | Apparatus and method for controllably delivering fluid to a second fluid stream |
Country Status (3)
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US (2) | US6220267B1 (en) |
AU (1) | AU2861400A (en) |
WO (1) | WO2000045233A1 (en) |
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US20140056327A1 (en) * | 2011-02-25 | 2014-02-27 | Varta Microbattery Gmbh | Status indicator for temperature-sensitive goods |
WO2025008231A1 (en) * | 2023-07-04 | 2025-01-09 | Simatec Ag | System for dispensing an active-ingredient fluid, in particular a plant- and/or insect-effective active ingredient |
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-
1999
- 1999-01-27 US US09/238,334 patent/US6220267B1/en not_active Expired - Fee Related
-
2000
- 2000-01-26 WO PCT/US2000/002059 patent/WO2000045233A1/en active Application Filing
- 2000-01-26 AU AU28614/00A patent/AU2861400A/en not_active Abandoned
-
2001
- 2001-04-23 US US09/840,061 patent/US6415808B2/en not_active Expired - Lifetime
Cited By (2)
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US20140056327A1 (en) * | 2011-02-25 | 2014-02-27 | Varta Microbattery Gmbh | Status indicator for temperature-sensitive goods |
WO2025008231A1 (en) * | 2023-07-04 | 2025-01-09 | Simatec Ag | System for dispensing an active-ingredient fluid, in particular a plant- and/or insect-effective active ingredient |
Also Published As
Publication number | Publication date |
---|---|
AU2861400A (en) | 2000-08-18 |
US6220267B1 (en) | 2001-04-24 |
WO2000045233A1 (en) | 2000-08-03 |
US6415808B2 (en) | 2002-07-09 |
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