Patent US3628550A successfully refreshed from Google Patents.
US3628550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional inertia-responsive gas-dispensing apparatus
Assignee: Kidde Inc
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Filing: 1970-07-15
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Granted: 1971-12-21
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Expires: 1990-07-15
Abstract
Abstract Apparatus for dispensing pressurized gas in response to a front or rear end collision including a container having an outlet opening and an open ended tubular member aligned with the outlet providing a second opening. A valve member extending between the openings has a large diameter piston normally sealing the outlet and a smaller diameter piston sealing the second opening. Movement of the valve member in either axial direction moves the large diameter piston out of the outlet to discharge the container. A spring is provided to hold the valve member in the closed position against the differential pressure force acting on the large diameter piston. When the container is rapidly decelerated or accelerated along the axis of the valve member, the inertia of the valve member causes it to be displaced opening the outlet to permit discharge of the container.
Inventors
- 👤 John Cirillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
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: 4
Claim 1
Independent Claim
178 words
Apparatus for supplying fluid medium under pressure in response to either an increase or a decrease in velocity comprising in combination a container of fluid medium under pressure having an outlet opening and an open ended tubular member aligned with said outlet opening to provide a second opening, and valve means including a valve member having a first end portion normally positioned in said outlet for sealing said outlet and a second end portion within said tubular member for sealing said second opening, said valve member having a predetermined mass and being movable in the direction of said tubular member to a first operated position in response to a change in velocity in one direction and being movable in the direction of said outlet to a second operated position in response to a charge in velocity in the opposite direction, said first end portion being positioned to open said outlet when said valve member is in said first and second operated positions, said valve means including means for normally holding said first end portion in said normal position.
Claim 2
Dependent Claim
178 words
Apparatus for supplying fluid medium under pressure in response to either an increase or a decrease in velocity comprising in combination a container of fluid medium under pressure having an outlet opening and an open ended tubular member aligned with said outlet opening to provide a second opening, and valve means including a valve member having a first end portion normally positioned in said outlet for sealing said outlet and a second end portion within said tubular member for sealing said second opening, said valve member having a predetermined mass and being movable in the direction of said tubular member to a first operated position in response to a change in velocity in one direction and being movable in the direction of said outlet to a second operated position in response to a charge in velocity in the opposite direction, said first end portion being positioned to open said outlet when said valve member is in said first and second operated positions, said valve means including means for normally holding said first end portion in said normal position.
Claim 3
Dependent Claim
36 words
Apparatus according to claim 1 wherein said last-mentioned means includes piston means carried by said valve member to bias said valve member in one direction and spring means for balancing the action of said piston means.
Claim 4
Dependent Claim
34 words
Apparatus according to claim 2 wherein said first end portion of said valve member includes a piston member and said outlet has a portion into which said piston fits in sliding and sealing relationship.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |