US3637110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frictionless inertia responsive gas dispensing apparatus
Assignee: Kidde Inc
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Filing: 1970-07-15
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Granted: 1972-01-25
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Expires: 1990-07-15
Abstract
Abstract Apparatus for dispensing pressurized gas in response to a change in velocity including a container having an outlet opening and a second opening aligned therewith, and a valve member for sealing both of the openings. The valve member has a large diameter piston at one end which engages an annular flange at the outlet and a smaller diameter piston at the other end which engages an annular member at the second opening. The pistons are provided with face seals and the pressure within the container holds the seals in contact with the annular flange and the annular member to seal the openings. The valve member is of sufficient mass to overcome the pressure forces and open the container in response to a predetermined change in velocity of the container. A tubular member at the second opening closely fits the smaller piston so that substantially all of the gas in the container is emptied through the outlet opening.
Inventors
- 👤 John Cirillo
- 👤 Gerald Durstewitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:38
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/268; B60R21/33; Y; Y10; Y10T; Y10T137/00; Y10T137/0753
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
Apparatus for supplying fluid medium under pressure comprising in combination a container of fluid medium under pressure having an outlet opening and a second opening aligned with said outlet opening, means providing a first annular surface at said outlet opening facing the interior of said container, a valve member mounted for movement along the axis of said openings including a first portion for closing said outlet opening having a second annular surface facing said first surface for engaging said first surface to seal said outlet opening, means providing a third annular surface at said second opening facing away from the interior of said container, said valve member including a second portion at said second opening having a fourth annular surface to seal said second opening.
Claim 2
Dependent Claim
125 words
Apparatus for supplying fluid medium under pressure comprising in combination a container of fluid medium under pressure having an outlet opening and a second opening aligned with said outlet opening, means providing a first annular surface at said outlet opening facing the interior of said container, a valve member mounted for movement along the axis of said openings including a first portion for closing said outlet opening having a second annular surface facing said first surface for engaging said first surface to seal said outlet opening, means providing a third annular surface at said second opening facing away from the interior of said container, said valve member including a second portion at said second opening having a fourth annular surface to seal said second opening.
Claim 3
Dependent Claim
58 words
Apparatus according to claim 1 wherein a tubular formation is provided at said second opening and said second portion is formed to closely fit within said formation to prevent excess fluid flow past said second portion when said first and second valve member portions are moved away from said first and third surfaces to open said Outlet openings.
Claim 4
Dependent Claim
29 words
Apparatus according to claim 2 wherein both said first and second valve member portions are provided with piston surfaces in fluid flow communication with the interior of said container.
Claim 5
Dependent Claim
37 words
Apparatus according to claim 3 wherein said piston surfaces on said first portion has a larger effective area than said piston surface on said second portion whereby said valve member is pressure biased in the closed position.
Claim 6
Dependent Claim
48 words
Apparatus according to claim 2 wherein said means for providing said third annular surface includes an annular member slidably positioned in said tubular formation and means providing a fluid medium seal between said annular member and said formation, said third annular surface being provided on said annular member.
Claim 7
Dependent Claim
44 words
Apparatus according to claim 5 including a stop member for limiting movement of said annular member toward the interior of said container and spring means between said stop member and said annular member to bias said third annular surface against said fourth annular surface.
References Cited (Backward Citations)
US2760484A
Cited
US3480026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |