Patent US3428071A successfully refreshed from Google Patents.
US3428071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed airbrake assembly
Assignee: Berg Manufacturing and Sales Co
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Filing: 1966-10-31
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Granted: 1969-02-18
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Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Werner Kobnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:21
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/26; B60T8/262; B60T8/263; F; F16; F16K; F16K17/00; F16K17/18; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2594; Y10T137/7722; Y10T137/7837; Y10T137/7876
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
FOR USE IN A VEHICLE AIRBRAKE SYSTEM, A VALVE INCLUDING A HOUSING, AN AIR PRESSURE INLET IN SAID HOUSING, AN AIR PRESSURE OUTLET IN SAID HOUSING, A VALVE SEAT IN SAID HOUSING BETWEEN SAID INLET AND SAID OUTLET, A VALVE MEMBER MOVABLE IN SAID HOUSING TOWARD AND AWAY FROM SAID SAID VALVE MEMBER BEING MOVABLE AWAY FROM SAID SEAT IN RESPONSE TO PRESSURE ENTERING SAID INLET, A FIRST YIELDING MEANS POSITIONED IN SAID HOUSING TO URGE SAID VALVE MEMBER TOWARD SAID SEAT, A VALVE ACTUATOR MOVABLE IN SAID HOUSING TOWARD AND AWAY FROM SAID VALVE MEMBER, A SECOND YIELDING MEANS POSITIONED IN SAID HOUSING TO URGE SAID ACTUATOR TOWARD SAID VALVE MEMBER TO UNSEAT SAID VALVE MEMBER.
Claim 2
Dependent Claim
117 words
FOR USE IN A VEHICLE AIRBRAKE SYSTEM, A VALVE INCLUDING A HOUSING, AN AIR PRESSURE INLET IN SAID HOUSING, AN AIR PRESSURE OUTLET IN SAID HOUSING, A VALVE SEAT IN SAID HOUSING BETWEEN SAID INLET AND SAID OUTLET, A VALVE MEMBER MOVABLE IN SAID HOUSING TOWARD AND AWAY FROM SAID SAID VALVE MEMBER BEING MOVABLE AWAY FROM SAID SEAT IN RESPONSE TO PRESSURE ENTERING SAID INLET, A FIRST YIELDING MEANS POSITIONED IN SAID HOUSING TO URGE SAID VALVE MEMBER TOWARD SAID SEAT, A VALVE ACTUATOR MOVABLE IN SAID HOUSING TOWARD AND AWAY FROM SAID VALVE MEMBER, A SECOND YIELDING MEANS POSITIONED IN SAID HOUSING TO URGE SAID ACTUATOR TOWARD SAID VALVE MEMBER TO UNSEAT SAID VALVE MEMBER.
References Cited (Backward Citations)
US2049984A
Cited
US2922678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |