US3115371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency release system for fluid pressure brakes
Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1961-06-28
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Granted: 1963-12-24
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Expires: 1981-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harry M Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:51
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/18; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/261; B60T13/263; B60T13/36; B60T15/04; B60T15/043; B60T15/045; B60T15/046; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A BRAKE SYSTEM WHICH INCLUDES FIRST AND SECOND SOURCES OF FLUID PRESSURE, A RELAY-EMERGENCY VALVE HAVING EMERGENCY AND INLET PORTS, AN EMERGENCY CONDUIT CONNECTED TO SAID EMERGENCY PORT, AND A FLUID CONNECTION BETWEEN SAID SECOND SOURCE OF PRESSURE AND SAID INLET PORT, IN COMBINATION THEREWITH, A THIRD SOURCE OF FLUID PRESSURE, A DOUBLE CHECK VALVE HAVING A PAIR OF INLET PORTS RESPECTIVELY CONNECTED TO SAID THIRD AND SECOND SOURCES OF FLUID PRESSURE AND HAVING AN OUTLET PORT, A MANUALLY OPERABLE VALVE HAVING FIRST AND SECOND INLET PORTS EACH RESPECTIVELY CONNECTED TO THE OUTLET PORT OF SAID DOUBLE
Claim 2
Dependent Claim
97 words
A BRAKE SYSTEM WHICH INCLUDES FIRST AND SECOND SOURCES OF FLUID PRESSURE, A RELAY-EMERGENCY VALVE HAVING EMERGENCY AND INLET PORTS, AN EMERGENCY CONDUIT CONNECTED TO SAID EMERGENCY PORT, AND A FLUID CONNECTION BETWEEN SAID SECOND SOURCE OF PRESSURE AND SAID INLET PORT, IN COMBINATION THEREWITH, A THIRD SOURCE OF FLUID PRESSURE, A DOUBLE CHECK VALVE HAVING A PAIR OF INLET PORTS RESPECTIVELY CONNECTED TO SAID THIRD AND SECOND SOURCES OF FLUID PRESSURE AND HAVING AN OUTLET PORT, A MANUALLY OPERABLE VALVE HAVING FIRST AND SECOND INLET PORTS EACH RESPECTIVELY CONNECTED TO THE OUTLET PORT OF SAID DOUBLE
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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |