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WO1991010115A1 - Dispositif de dosage de liquides - Google Patents

Dispositif de dosage de liquides Download PDF

Info

Publication number
WO1991010115A1
WO1991010115A1 PCT/EP1990/002106 EP9002106W WO9110115A1 WO 1991010115 A1 WO1991010115 A1 WO 1991010115A1 EP 9002106 W EP9002106 W EP 9002106W WO 9110115 A1 WO9110115 A1 WO 9110115A1
Authority
WO
WIPO (PCT)
Prior art keywords
dosing
liquid
external body
rim
dosing device
Prior art date
Application number
PCT/EP1990/002106
Other languages
English (en)
Inventor
Evans Santagiuliana
Original Assignee
Taplast Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taplast Srl filed Critical Taplast Srl
Publication of WO1991010115A1 publication Critical patent/WO1991010115A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/26—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus
    • G01F11/262—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for liquid or semi-liquid
    • G01F11/263—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation wherein the measuring chamber is filled and emptied by tilting or inverting the supply vessel, e.g. bottle-emptying apparatus for liquid or semi-liquid with valves

Definitions

  • the invention concerns a dosing device for liquids to be used in containers, for example for the dosing of fluid detergents, oils or chemical products in general, which have to be used according to selected amounts.
  • Known dosing devices consist of outflow ducts provided with channels in which a ball immersed in water moves; said ball shows a certain inertia and stops the outflow of the liquid. When the container is overturned, said ball obstructs the opening for the outflow of the liquid, after running along a obligatory path.
  • the main disadvantage of these devices is that a satisfactory dosing precision can be obtained only when the container is turned swiftly from the vertical position to the reversed vertical position; while sometimes unsatisfactory results - and even in contrast with the desired aims - are reached when the position of the container is not perfectly vertical: in fact, in same cases, the above mentioned outflow ducts continue delivering liquid because a continuous flow of liquid between the pre-dosing chamber and the delivering chamber is established.
  • the aim of the invention is to realize a dosing device for liquids which overcomes the aforementioned disadvantages.
  • the main goal to be obtained is that the dosing device works correctly without the need for the container to be reversed in a completely vertical position.
  • Another goal of the invention is to grant the pre-dosing of the liquid and the outflow of the pre-dosed liquid with accuracy and without any variations in the subsequent doses, even though the position of the dosing device is not completely vertical.
  • Another goal is to realize a dosing device composed of few elements preferably made of printed plastic material so that the dosing device is extremely cheap.
  • a dosing device for liquids to be mounted and sealed in the opening of a container • which, according to the content of claim 1, characterized in that it comprises: - a tubular external body having a neck sealed in the opening of the container, having one or more holes in proximity to said neck for the entrance of the liquid to be dosed and with an opened bottom which contains a sliding element inserted in said external body; - a two-volume sliding tubular cylindrical dosing element inserted in the opening of the bottom of the external body and having a closed bottom, said element being suitable to receive the dose of the liquid to be delivered;
  • the dosing element which acts as a collecting chamber of the dosed liquid, can advantageously slide towards the outflow duct, said dosing element being guided on the tubular final part of the external body of the dosing device so that the connecting surface between the the two cylindrical parts of said dosing element leans " on the rim of the tubular element of the outflow duct when the container is inclined downwards beyond the horizontal line, thus insuring the sealing between the two component parts of .the dosing device so as to exclude consequently any communication with the predosing chamber.
  • this communication between the outflow duct and the tubular element which collects the predosed liquid is established as soon as the dosing device is inclined beyond the horizontal position, and this occurs because of the hydraulic thrust exerted by the liquid which surrounds it in the container. Since the force of this thrust also depends on the viscosity of the liquid, the invention presupposes that for dense liquids the T
  • outflow duct is shaped in such a manner as to provide a larger surface to .
  • the liquid pressure action in order to insure the necessary thrust for the dosing element to lean against the rim of the outflow duct.
  • -Fig. 1 shows in view a container with the dosing device according to the invention
  • -Fig. 2 is a cross-section of the dosing device according to the invention, inserted in a container;
  • -Fig. 3 is a cross-section of the device according to the invention during the first phase, in which. the amount of liquid is collected;
  • -Fig. 4 is a cross-section of the device according to the invention during the second phase, in which the pre-dosed liquid is transferred into the collecting chamber;
  • -Fig. 5 is a cross-section of the device according to the invention, during the.phases of the delivering of the dose and the collection of a new dose in the dosing chamber;
  • -Fig. 6 is a cross-section of a constructive variant of the device according to the.invention;
  • -Fig. 7 is a cross-section of a further constructive variant according to the invention, showing the dosing device in the delivering phase.
  • -Fig. 8 is a cross section of the dosing device according to the variant of Fig. 7, showing the device which is transferring the pre-dosed liquid.
  • the dosing device has an external body, indicated as a whole with 10, a . tubular-shaped dosing ⁇
  • the external body 10 illustrated in the example is essentially cylinder-shaped. It has a surface 11 and a neck 13 on the upper part which insures the sealing of the hole of the container of the liquid, so as to prevent the liquid from flowing out during the phases of the delivering of the liquid.
  • the external body 10 has an opening 15 at. its bottom, on which the dosing element 20 sliding on the internal walls of the body 10 is located.
  • the tubular part 11 of the body 10 is preferably but not necessarily cylindrical, for it is sufficient that the part 11 has the same shape as that of the dosing element for the dosing element to slide in the walls of the body 12 and be guided by them.
  • the dosing element 20 is essentially a double-diameter cylinder and has a lower part 22 equipped with a bottom 21 and a diameter which is smaller than that of the superior part, which is inserted in such a way as to slide in the internal wall 12 of the body 10.
  • the two cylindrical parts -22 and 24 are jointed by means of a conic surface 23 which leans on the slanted border of the bottom of the external body 10.
  • the body 30 is the outflow duct of the dosed liquid; it is essentially cylindrical and has a crown 31, which matches internally the rim of the external body and has a tubular central body 32 which is concentric with said crown. Said body 30 has an open bottom, which is the proper outflow duct. Since the external diameter of the outflow tube 32 is smaller than the internal diameter of the external body 10 in zone 11, an annular zone 40 is formed because of the difference in length betveen the two diameters 11 and 32, said annular space being the proper dosing chamber of the liquid 51, which is in the container 50.
  • the outflow duct then, has a seal 33, which is removed when the package is opened and the container is ready to be used.
  • the dosing device operation according to the invention is as follows:
  • the liquid contained in the dosing chamber 40 is transferred into the dosing element 20, since said tubular element lowers out of gravity, its conic surface 23 resting on the inclined rim 16 of the external body 10, thereby forming the annular entrance 41 through which the dosed liquid flows.
  • the volume of the dosing chamber 40 is larger than the volume 26 of the dosing element 20, it happens that the liquid transferred from the dosing chamber into the dosing element is always in excess, so that, once the transfer is completed, the liquid in excess overflows from the holes 25, said liquid touching the conic part 23 so that the holes 25 work as spillways which grant a constant level of the pre-dosed liquid.
  • the subsequent proper delivering phase which is described in fig. 5, it .can be observed that the liquid contained in the tubular element 20 flows into the outflow duct 30 and then flows out.
  • the figures 2, 3, 4 and 5 embody a particular form of dosing device in which the proper dosing device indicated with 20 has a conic surface 23 and is guided into the external sliding element ' 10.
  • the shape of the dosing device 20 with its conic surface 23, which is illustrated in Fig. 3-5 is particularly suited to be used for the dosing of liquids with significant density, since the surface 23 adds up to the bottom surface 21 as regards the thrust that the liquid 51 contained in the container 50 exerts on the dosing device 20. If liquids with a low rate. of viscosity or a significantly high acqueous component are to be dosed, it is not necessary that the bottom surface 21 on which the hydraulic thrust acts is further increased by adding- the conic surface 23, as described in fig. 2. For this reason fig.
  • FIG. 6 shows a variant of the dosing device according to the invention, where the external element 10 has at its bottom a open cylindrical part 17 which guides the dosing element 20, said dosing element being essentially composed of a cylindrical part 22 and an upper conic part 26 which interacts with the terminal rim of the dosing element 30.
  • the rim 27 of the surface 26 of the dosing device 20 acts as a overflow level, since the liquid in excess with respect to the capacity of the dosing element 20 overflows from said rim 27 and flows from the holes 28 which, according to this variant, are part of the external body 10 and are located in the connecting surface 19, between the two cylindrical surfaces 11 and 22.
  • the body 20 shows four longitudinal grooves 35 which realize the aim of the invention.
  • the dosing device is a lid 60 which is molded together with the external body 10 in order to complete the dosing device itself.
  • the fig. 7 and 8 show a further variant of the dosing device according to the invention.
  • the dosing device 20, with its conic surface 23, is particularly suited to be used for the dosage of significantly dense liquids.
  • the dosing device is suited to be used also with low density liquids. More precisely, as can be seen in fig. 7, the dosing device 20 has a circular rim 35 located between the connecting conic surface 23 and the smaller diameter part 22, said circular rim 35 touching the internal surface 34 of the dosing element 30 when the dosing device is in the delivering position.
  • the rim 35 and the rim 34 of the outflow duct 32 insure the necessary sealing to avoid the outflow of the liquid contained in the chamber 40 through the outflow duct, so as to grant the same preselected dose.
  • the dosing element 20 slides downwards and the annular passage 41 opens, said passage opening notwithstanding the rim 35.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Dispositif de dosage comprenant un corps externe tubulaire (10), un élément de dosage coulissant (20) inséré dans le corps externe (10), un conduit d'écoulement coaxial à la surface interne du corps externe (13), ainsi qu'une chambre de prédosage (40) de liquide, située entre la surface interne (11) du corps externe (10) et la surface externe (32) du conduit d'écoulement. Ledit dispositif de dosage assure une étanchéité entre l'élément de dosage (20) et la chambre de prédosage (40) lorsque le dispositif achemine la dose sélectionnée du fait de la poussée hydraulique exercée sur l'élément de dosage coulissant, dès que le conteneur est incliné vers le bas au-delà de la ligne horizontale.
PCT/EP1990/002106 1989-12-21 1990-12-06 Dispositif de dosage de liquides WO1991010115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT08569589A IT1236746B (it) 1989-12-21 1989-12-21 Dispositivo dosatore per liquidi
IT85695A/89 1989-12-21

Publications (1)

Publication Number Publication Date
WO1991010115A1 true WO1991010115A1 (fr) 1991-07-11

Family

ID=11329758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/002106 WO1991010115A1 (fr) 1989-12-21 1990-12-06 Dispositif de dosage de liquides

Country Status (3)

Country Link
AU (1) AU6880991A (fr)
IT (1) IT1236746B (fr)
WO (1) WO1991010115A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021942A1 (fr) * 1991-05-29 1992-12-10 Taplast Srl Dispositif de dosage de liquides
WO1994005978A1 (fr) * 1992-09-10 1994-03-17 Taplast Srl Dispositif ameliore de mesure-distribution de produits liquides
DE4238269C1 (de) * 1992-11-12 1994-04-07 Merz & Co Gmbh & Co Dosier-Entnahmevorrichtung
US5988434A (en) * 1992-11-12 1999-11-23 Merz & Co. Gmbh & Co. Kg Dosage withdrawal apparatus
US20120097714A1 (en) * 2010-10-21 2012-04-26 Paulus Antonius Augustinus Hoefte Liquid dosing apparatus
US10239671B2 (en) 2012-04-17 2019-03-26 The Procter & Gamble Company Liquid dosing apparatus
US10488241B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus
US10488240B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1687705A (en) * 1928-01-09 1928-10-16 Androff Lambro Dispensing device
DE3133835A1 (de) * 1981-08-27 1983-03-10 Alfred Von 4178 Kevelaer Schuckmann Auf umwendbare behaeltnisse aufsetzbarer portionierer fuer fluessigkeiten
DE3522807A1 (de) * 1984-06-29 1986-01-09 Gottfried Roder Herstellung von Kunststofferzeugnissen, 2400 Lübeck Rohrfoermige dosiervorrichtung zur abgabe von fluessigkeitsmengen gleichen volumens
DE3715617A1 (de) * 1987-05-11 1988-11-24 Celamerck Gmbh & Co Kg Dosier-verschlusskappe und verfahren zu deren anwendung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1687705A (en) * 1928-01-09 1928-10-16 Androff Lambro Dispensing device
DE3133835A1 (de) * 1981-08-27 1983-03-10 Alfred Von 4178 Kevelaer Schuckmann Auf umwendbare behaeltnisse aufsetzbarer portionierer fuer fluessigkeiten
DE3522807A1 (de) * 1984-06-29 1986-01-09 Gottfried Roder Herstellung von Kunststofferzeugnissen, 2400 Lübeck Rohrfoermige dosiervorrichtung zur abgabe von fluessigkeitsmengen gleichen volumens
DE3715617A1 (de) * 1987-05-11 1988-11-24 Celamerck Gmbh & Co Kg Dosier-verschlusskappe und verfahren zu deren anwendung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021942A1 (fr) * 1991-05-29 1992-12-10 Taplast Srl Dispositif de dosage de liquides
WO1994005978A1 (fr) * 1992-09-10 1994-03-17 Taplast Srl Dispositif ameliore de mesure-distribution de produits liquides
DE4238269C1 (de) * 1992-11-12 1994-04-07 Merz & Co Gmbh & Co Dosier-Entnahmevorrichtung
US5988434A (en) * 1992-11-12 1999-11-23 Merz & Co. Gmbh & Co. Kg Dosage withdrawal apparatus
US20120097714A1 (en) * 2010-10-21 2012-04-26 Paulus Antonius Augustinus Hoefte Liquid dosing apparatus
US10048106B2 (en) * 2010-10-21 2018-08-14 The Procter & Gamble Company Liquid dosing apparatus
US10239671B2 (en) 2012-04-17 2019-03-26 The Procter & Gamble Company Liquid dosing apparatus
US10488241B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus
US10488240B2 (en) 2016-10-25 2019-11-26 The Procter & Gamble Company Liquid dosing apparatus

Also Published As

Publication number Publication date
IT8985695A1 (it) 1991-06-21
IT8985695A0 (it) 1989-12-21
IT1236746B (it) 1993-03-31
AU6880991A (en) 1991-07-24

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