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US4062287A Expired / Lapsed US ⏱️ 0.0 years remaining

Resilient insert for tire inflator

Assignee: Honeywell International Inc
•
Filing: 1977-01-07
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Granted: 1977-12-13
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Expires: 1997-01-07
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Abstract

Abstract The invention is a light, portable, miniaturized tire inflator adapted to fit in a limited space, such as in a tire well for a deflated, space-saving tire in a trunk of an automobile, and adapted to be carried or held in one hand. The tire inflator includes a metal, preferably steel pressure cannister comprising in one embodiment a pressure vessel and a pressure head cap assembly, a pyrotechnic material in the pressure vessel, an ignitor mechanism and a nozzle in the head cap assembly, an internal insulation liner for said pressure cannister to reduce the temperature level of the cannister to a level acceptable to an external insulation, such as plastic foam or paper, of about 350° F, and a resilient insert for example rubber, in the nozzle end to mate and thread in one embodiment, with the metal tire valve threads, and prevent cross threading, while providing a seal with the tire valve for inflation of the tire. The rubber insert also allows the tire inflator simply to be pushed on the valve and form the required seal, rather than threaded thereto, due to the resilient nature of the rubber.

Inventors

  • 👤 Robert Millray

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 15:46
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/04; B; B60; B60C; B60C29/00; Y; Y10; Y10S; Y10S102/00; Y10S102/704

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 192 words
A light, portable, miniaturized tire inflator pressure cannister for inflating a tire having an inlet valve, and adapted to be carried in one hand, comprising: a pyrotechnic material as sole source of inflating gas located within an inner surface of the cannister to generate the inflating gas upon ignition to inflate the tire, without a source of stored fluid; an ignitor mechanism located adjacent to said pyrotechnic material to ignite and cause said pyrotechnic matrial to burn; said pressure cannister comprised of a pressure vessel to hold said pyrotechnic material, said pressure vessel having a tire end and a pyrotechnic end, and a pressure cannister cap, a portion of which is adapted to fit at the outer edge of said tire end of said pressure vessel; a nozzle mounted on said pressure cannister cap, said nozzle including a flexible insert mounted thereon, the insert connecting directly to the valve of the tire; and an internal insulation liner composed of an endothermically decomposing compound located on substantially the entire interior surface of said cannister for maintaining the temperature of said cannister at about 350° F. or below during generation of said inflating gas.
Claim 2
Dependent Claim 192 words
A light, portable, miniaturized tire inflator pressure cannister for inflating a tire having an inlet valve, and adapted to be carried in one hand, comprising: a pyrotechnic material as sole source of inflating gas located within an inner surface of the cannister to generate the inflating gas upon ignition to inflate the tire, without a source of stored fluid; an ignitor mechanism located adjacent to said pyrotechnic material to ignite and cause said pyrotechnic matrial to burn; said pressure cannister comprised of a pressure vessel to hold said pyrotechnic material, said pressure vessel having a tire end and a pyrotechnic end, and a pressure cannister cap, a portion of which is adapted to fit at the outer edge of said tire end of said pressure vessel; a nozzle mounted on said pressure cannister cap, said nozzle including a flexible insert mounted thereon, the insert connecting directly to the valve of the tire; and an internal insulation liner composed of an endothermically decomposing compound located on substantially the entire interior surface of said cannister for maintaining the temperature of said cannister at about 350° F. or below during generation of said inflating gas.
Claim 3
Dependent Claim 12 words
A pressure cannister as claimed in claim 1, the insert being rubber.
Claim 4
Dependent Claim 16 words
A pressure cannister as claimed in claim 1, the insert tapered for reception of the valve.
Claim 5
Dependent Claim 16 words
A pressure cannister as claimed in claim 1, the insert being spin mounted with the nozzle.
Claim 6
Dependent Claim 22 words
A pressure cannister as claimed in claim 1, the liner comprising an air gap adjacent to the inner surface of the cannister.

References Cited (Backward Citations)

US1008646A Cited
US2498596A Cited
US3269310A Cited
US3774807A Cited
US3901747A Cited
US3912562A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-12-12 1981-06-13 1981-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-12-12 1985-06-13 1985-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-12-12 1989-06-13 1989-12-13 $7700.00 Window Closed / Lapsed

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