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US20170305383A1 - Unscrewable and Magnetically Attractable Inflator Cap - Google Patents

Unscrewable and Magnetically Attractable Inflator Cap Download PDF

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Publication number
US20170305383A1
US20170305383A1 US15/136,978 US201615136978A US2017305383A1 US 20170305383 A1 US20170305383 A1 US 20170305383A1 US 201615136978 A US201615136978 A US 201615136978A US 2017305383 A1 US2017305383 A1 US 2017305383A1
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US
United States
Prior art keywords
inflator
cap
outer cover
magnetic
canceled
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
Application number
US15/136,978
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US9789843B1 (en
Inventor
David Hui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
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Priority to US15/136,978 priority Critical patent/US9789843B1/en
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Publication of US9789843B1 publication Critical patent/US9789843B1/en
Publication of US20170305383A1 publication Critical patent/US20170305383A1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C29/00—Arrangements of tyre-inflating valves to tyres or rims; Accessories for tyre-inflating valves, not otherwise provided for
    • B60C29/06—Accessories for tyre-inflating valves, e.g. housings, guards, covers for valve caps, locks, not otherwise provided for
    • B60C29/066—Valve caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow in pipes or hoses

Definitions

  • a conventional inflator cap as covered on a vehicle inflator is made of copper.
  • the copper inflator cap is heavy and also expensive. So, the copper inflator cap has been gradually replaced by aluminum-alloy cap.
  • the aluminum will be oxidized to form an oxide layer which may be stuck up among the threads of the inflator cap and the valve stem of the inflator, to thereby “lock” the cap and being unable to unscrew from the inflator for inflating tire or maintenance.
  • the present inventor has therefore invented the inflator cap which is easily unscrewable from the inflator.
  • a conventional inflator cap once unscrewed from the inflator, may be easily lost as lacking of any holding mechanism for temporarily holding the cap thereon.
  • inflator cap which may be magnetically holdable or attractable on a ferromagnetic object to prevent loss.
  • the object of the present invention is to provide an inflator cap comprising: an outer cover; an anti-corrosion lining formed in or inside the outer cover; and a magnetic member formed on, in or inside the outer cover, whereby the magnetic member of the inflator cap, once unscrewed from the inflator, will be magnetically holdable or attractable on a ferromagnetic object or frame to prevent its loss; or whereby the anti-corrosion lining will form a partition to prevent from a contact between the outer cover of the inflator cap and a valve stem of the inflator to prevent from sticking of the oxide of the outer cover once oxidized, thereby smoothly unscrewing the cap from the inflator.
  • FIG. 1 is a partial sectional drawing of a first preferred embodiment of the present invention.
  • FIG. 2 shows a second preferred embodiment of the present invention as simplified from FIG. 1 .
  • an inflator cap of the present invention comprises: an outer cover 1 ; an anti-corrosion lining 2 , a magnetic member 3 , and a sealing ring or packing ring 4 .
  • the outer cover 1 may be made of aluminum alloy or other materials, not limited in the present invention.
  • the anti-corrosion lining 2 is made of plastic, rubber, or other composite materials, which are resistant to corrosion.
  • the lining 2 is formed, lined, embedded or fixed inside the cover 1 .
  • the anti-corrosion lining 2 includes female threads 21 formed therein to be engaged with male threads (not shown) formed on an inflator valve stem so that the cap of the present invention can be screwed on the inflator stem or unscrewed from the inflator.
  • the magnetic member 3 may be selected from a magnet, a magnetic adhesive element having magnetic adhesive or magnetic powders or ingredients formed in an adhesive composition, or any other member having magnetism capable of attracting the magnetic member and the inflator cap of the present invention on a ferromagnetic object, frame or device.
  • the magnetic member 3 includes a magnetic adhesive element 31 having magnetic adhesive composition contained therein and is packed in between a lower rim portion 11 of the outer cover 1 and a lower periphery of the anti-corrosion lining 2 as shown in FIG. 1 .
  • a magnetic adhesive element 31 plays double roles, both for providing magnetism of the inflator cap to be magnetically attracted or held on a ferromagnetic object such as an ironic vehicle body or frame; and also for firmly fastening the anti-corrosion lining 2 within the outer cover 1 to prevent from loosening or releasing of the lining 2 from the cover 1 .
  • the magnetic adhesive used in the present invention may include strontium ferrite magnetic powder and polyolefin resin base adhesive. Other compositions may be selected for preparing the magnetic adhesive element, not limited in the present invention.
  • the magnetic member 3 may also include a magnetic disk 32 secured on a top portion 12 of the outer cover 1 .
  • a magnetic disk 32 may be covered or coated with a corrosion-proof layer (not shown) for further protection of the magnetic disk 32 .
  • the magnetic member 3 may be secured, formed or fastened on, in or inside any position of the outer cover 1 .
  • the inflator cap comprised of the outer cover 1 and the anti-corrosion lining 2 , may be fastened to a valve stem (not shown) of an inflator as packed by a packing ring or sealing ring 4 .
  • the magnetic member 3 is omitted, and the anti-corrosion lining 2 may be made as a magnetic lining by incorporating magnetic powder therein for providing both lining property and magnetism simultaneously.
  • the magnetic powder may be selected from: ferrite, NdFeB (Neodymium Iron Boron) and SmCo (Samarium Cobalt), or other magnetic powders.
  • the anti-corrosion lining 2 may not be incorporated with magnetic powders or ingredients therein. By the way, the inflator cap thus made will exclude the magnetism property. However, the anti-corrosion lining 2 may still protect the cap from being stuck to the inflator valve stem due to oxidation after long time service.
  • the present invention may include one or plural magnetic members 3 formed or secured on, in or inside any location on the outer cover 1 .
  • the magnetic member 3 may be formed with plural shapes including: disk, plate, ring, strip, band, and any other shapes, not limited in the present invention.
  • the outer cover 1 may also be made as magnetic so that it may be directly magnetically attractable or holdable on any ironic or ferromagnetic object or device.
  • the lining 2 and the cover 1 may also be integrally formed as an inflator cap, not limited in the present invention.
  • the inflator cap may be shaped as cylindrical or hexagonal or any other shapes.
  • the cover 1 may be made as magnetic, having an anti-corrosion portion formed on an inner portion of the cover 1 , adapted to be fastened on a valve stem of the inflator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

An inflator cap comprising: an outer cover; an anti-corrosion lining formed in or inside the outer cover; and a magnetic member formed on, in or inside the outer cover, whereby the magnetic member of the inflator cap, once unscrewed from the inflator, will be magnetically attractable on a ferromagnetic object to prevent its loss; or whereby the anti-corrosion lining will preclude a direct contact between the outer cover of the inflator cap and a valve stem of the inflator to prevent from sticking of the oxide of the outer cover once oxidized on the valve stem of the inflator, thereby smoothly unscrewing the cap from the inflator.

Description

    BACKGROUND OF THE INVENTION
  • A conventional inflator cap as covered on a vehicle inflator is made of copper. The copper inflator cap is heavy and also expensive. So, the copper inflator cap has been gradually replaced by aluminum-alloy cap. However, after a long time service, the aluminum will be oxidized to form an oxide layer which may be stuck up among the threads of the inflator cap and the valve stem of the inflator, to thereby “lock” the cap and being unable to unscrew from the inflator for inflating tire or maintenance.
  • The present inventor has therefore invented the inflator cap which is easily unscrewable from the inflator.
  • Meanwhile, a conventional inflator cap, once unscrewed from the inflator, may be easily lost as lacking of any holding mechanism for temporarily holding the cap thereon.
  • It is therefore invented by the present inventor to disclose an inflator cap, which may be magnetically holdable or attractable on a ferromagnetic object to prevent loss.
    • SUMMARY OF THE INVENTION
  • The object of the present invention is to provide an inflator cap comprising: an outer cover; an anti-corrosion lining formed in or inside the outer cover; and a magnetic member formed on, in or inside the outer cover, whereby the magnetic member of the inflator cap, once unscrewed from the inflator, will be magnetically holdable or attractable on a ferromagnetic object or frame to prevent its loss; or whereby the anti-corrosion lining will form a partition to prevent from a contact between the outer cover of the inflator cap and a valve stem of the inflator to prevent from sticking of the oxide of the outer cover once oxidized, thereby smoothly unscrewing the cap from the inflator.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a partial sectional drawing of a first preferred embodiment of the present invention.
  • FIG. 2 shows a second preferred embodiment of the present invention as simplified from FIG. 1.
    •  DETAILED DESCRIPTION
  • As shown in FIG. 1, an inflator cap of the present invention comprises: an outer cover 1; an anti-corrosion lining 2, a magnetic member 3, and a sealing ring or packing ring 4.
  • The outer cover 1 may be made of aluminum alloy or other materials, not limited in the present invention.
  • The anti-corrosion lining 2 is made of plastic, rubber, or other composite materials, which are resistant to corrosion. The lining 2 is formed, lined, embedded or fixed inside the cover 1.
  • The anti-corrosion lining 2 includes female threads 21 formed therein to be engaged with male threads (not shown) formed on an inflator valve stem so that the cap of the present invention can be screwed on the inflator stem or unscrewed from the inflator.
  • The magnetic member 3 may be selected from a magnet, a magnetic adhesive element having magnetic adhesive or magnetic powders or ingredients formed in an adhesive composition, or any other member having magnetism capable of attracting the magnetic member and the inflator cap of the present invention on a ferromagnetic object, frame or device.
  • The magnetic member 3 includes a magnetic adhesive element 31 having magnetic adhesive composition contained therein and is packed in between a lower rim portion 11 of the outer cover 1 and a lower periphery of the anti-corrosion lining 2 as shown in FIG. 1. Such a magnetic adhesive element 31 plays double roles, both for providing magnetism of the inflator cap to be magnetically attracted or held on a ferromagnetic object such as an ironic vehicle body or frame; and also for firmly fastening the anti-corrosion lining 2 within the outer cover 1 to prevent from loosening or releasing of the lining 2 from the cover 1.
  • The magnetic adhesive used in the present invention may include strontium ferrite magnetic powder and polyolefin resin base adhesive. Other compositions may be selected for preparing the magnetic adhesive element, not limited in the present invention.
  • The magnetic member 3 may also include a magnetic disk 32 secured on a top portion 12 of the outer cover 1. Such a magnetic disk 32 may be covered or coated with a corrosion-proof layer (not shown) for further protection of the magnetic disk 32.
  • The magnetic member 3 may be secured, formed or fastened on, in or inside any position of the outer cover 1.
  • The inflator cap, comprised of the outer cover 1 and the anti-corrosion lining 2, may be fastened to a valve stem (not shown) of an inflator as packed by a packing ring or sealing ring 4.
  • As shown in FIG. 2, the magnetic member 3 is omitted, and the anti-corrosion lining 2 may be made as a magnetic lining by incorporating magnetic powder therein for providing both lining property and magnetism simultaneously. The magnetic powder may be selected from: ferrite, NdFeB (Neodymium Iron Boron) and SmCo (Samarium Cobalt), or other magnetic powders.
  • For production option and cost reason, the anti-corrosion lining 2 may not be incorporated with magnetic powders or ingredients therein. By the way, the inflator cap thus made will exclude the magnetism property. However, the anti-corrosion lining 2 may still protect the cap from being stuck to the inflator valve stem due to oxidation after long time service.
  • The present invention provides an inflator cap with the following advantages:
    • 1. The anti-corrosion lining 2 may protect the cap from being oxidized, and prevent from sticking of the cap on an inflator valve stem, to ensure a smooth unscrewing of the cap for inflating or maintenance.
    • 2. The cap may be magnetically held or attracted on any ferromagnetic or iron frame, structure, object or stand so that it may not be lost.
  • The present invention may include one or plural magnetic members 3 formed or secured on, in or inside any location on the outer cover 1.
  • The magnetic member 3 may be formed with plural shapes including: disk, plate, ring, strip, band, and any other shapes, not limited in the present invention.
  • The outer cover 1 may also be made as magnetic so that it may be directly magnetically attractable or holdable on any ironic or ferromagnetic object or device.
  • The lining 2 and the cover 1 may also be integrally formed as an inflator cap, not limited in the present invention.
  • The inflator cap may be shaped as cylindrical or hexagonal or any other shapes.
  • The present invention may be further modified without departing from the spirit and scope of the present invention. For instance, the cover 1 may be made as magnetic, having an anti-corrosion portion formed on an inner portion of the cover 1, adapted to be fastened on a valve stem of the inflator.

Claims (9)

1. An inflator cap comprising:
an outer cover;
an anti-corrosion lining made of corrosion resistant material and lined or formed inside said outer cover, adapted to be unscrewably fastened on a valve stem of a vehicle inflator; and
a magnetic member formed on, in or inside said outer cover, adapted to be magnetically attractable or holdable on a ferromagnetic object to prevent from loss of the inflator cap once unscrewed from the inflator; said magnetic member including a magnetic adhesive element as fastened in between a lower rim portion of said outer cover and a lower periphery of said anti-corrosion lining.
2. (canceled)
3. An inflator cap according to claim 1, wherein said magnetic adhesive element includes magnetic powders or ingredients incorporated therein to provide magnetism of said inflator cap to be magnetically attractable on a ferromagnetic object.
4. (canceled)
5. (canceled)
6. (canceled)
7. (canceled)
8. (canceled)
9. (canceled)
US15/136,978 2016-04-24 2016-04-24 Unscrewable and magnetically attractable inflator cap Expired - Fee Related US9789843B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/136,978 US9789843B1 (en) 2016-04-24 2016-04-24 Unscrewable and magnetically attractable inflator cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/136,978 US9789843B1 (en) 2016-04-24 2016-04-24 Unscrewable and magnetically attractable inflator cap

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US9789843B1 US9789843B1 (en) 2017-10-17
US20170305383A1 true US20170305383A1 (en) 2017-10-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10583703B2 (en) * 2017-12-08 2020-03-10 Camisasca Automotive Manufacturing, Inc. Tire valve cap

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1190866A (en) * 1916-03-09 1916-07-11 Harvey F Crawford Tire-valve attachment.
US1254975A (en) * 1916-10-14 1918-01-29 Ray R Brown Valve-cap.
US1489364A (en) * 1919-06-05 1924-04-08 Cap fob valves ob the like
US1621300A (en) * 1925-09-10 1927-03-15 Nicholas I Woolsey Valve-stem cap
US1654178A (en) * 1920-04-03 1927-12-27 Edgar J Phillips Valve cap
US2248450A (en) * 1939-03-18 1941-07-08 Us Rubber Co Valve stem cap
US3112770A (en) * 1960-11-08 1963-12-03 William J Howard Valve stem caps
US6102064A (en) * 1998-09-10 2000-08-15 Robinson; Robert Theft resistant valve cap
US6382450B1 (en) * 1999-10-25 2002-05-07 G. Pivaudran Developpements Packaging device equipped with a system for relative positioning
US7610937B1 (en) * 2008-06-26 2009-11-03 Pressure Specialist Inc. Self-sealing regulator fill port protective/dust cover
US7770601B2 (en) * 2006-05-01 2010-08-10 Perry Scott K Magnetic valve cap for the valve stem of a pneumatic tire
US8960238B2 (en) * 2011-06-17 2015-02-24 Eco Speed Concept, Llc Quick release tire stem cap
GB2526841A (en) * 2014-06-04 2015-12-09 Kevin Morgan Method of locating a dust cap

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1190866A (en) * 1916-03-09 1916-07-11 Harvey F Crawford Tire-valve attachment.
US1254975A (en) * 1916-10-14 1918-01-29 Ray R Brown Valve-cap.
US1489364A (en) * 1919-06-05 1924-04-08 Cap fob valves ob the like
US1654178A (en) * 1920-04-03 1927-12-27 Edgar J Phillips Valve cap
US1621300A (en) * 1925-09-10 1927-03-15 Nicholas I Woolsey Valve-stem cap
US2248450A (en) * 1939-03-18 1941-07-08 Us Rubber Co Valve stem cap
US3112770A (en) * 1960-11-08 1963-12-03 William J Howard Valve stem caps
US6102064A (en) * 1998-09-10 2000-08-15 Robinson; Robert Theft resistant valve cap
US6279600B1 (en) * 1998-09-10 2001-08-28 Robert Robinson Method for securing a valve cap
US6382450B1 (en) * 1999-10-25 2002-05-07 G. Pivaudran Developpements Packaging device equipped with a system for relative positioning
US7770601B2 (en) * 2006-05-01 2010-08-10 Perry Scott K Magnetic valve cap for the valve stem of a pneumatic tire
US7610937B1 (en) * 2008-06-26 2009-11-03 Pressure Specialist Inc. Self-sealing regulator fill port protective/dust cover
US8960238B2 (en) * 2011-06-17 2015-02-24 Eco Speed Concept, Llc Quick release tire stem cap
GB2526841A (en) * 2014-06-04 2015-12-09 Kevin Morgan Method of locating a dust cap

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