Patent US1837600A successfully refreshed from Google Patents.
US3095244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake system and control valve therefor
Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1960-07-14
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Granted: 1963-06-25
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Expires: 1980-07-14
Abstract
No abstract record available.
Inventors
- 👤 Harry M Valentine
- 👤 Earl T Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:10
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/261; B60T13/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A VEHICLE FLUID VALVE BRAKE SYSTEM HAVING A SOURCE OF FLUID PRESSURE, A FLUID PRESSURE ACTUATOR FOR NORMALLY APPLYING A VEHICLE BRAKE, A SPRING OPERATED FLUID PRESSURE RELEASED ACTUATOR FOR MECHANICALLY APPLYING THE BRAKE WHEN THE FLUID PRESSURE FROM SAID SOURCE IS BELOW A PREDETERMINED PRESSURE, A MANUALLY OPERABLE VALVE HAVING AN INLET PORT CONNECTED WITH SAID SOURCE, AN OUTLET PORT AND AN EXHAUST PORT CONNECTED TO ATMOSPHERE, MEANS INCLUDING A SELECTIVELY OPERABLE VALVE FOR CONNECTING SAID OUTLET PORT WITH SAID SPRING OPERATED ACTUATOR, SAID VALVE ALSO HAVING A MANUALLY MOVABLE VALVE ELEMENT MOVABLE TO ONE POSITION TO CONNECT SAID INLET AND OUTLET PORTS AND MOVABLE TO A SECOND POSITION TO CONNECT SAID OUTLET AND EXHAUST PORTS, A MANUALLY OPERABLE BRAKE VALVE MOVABLE TO CONNECT SAID SOURCE AND FLUID PRESSURE ACTU-
Claim 2
Dependent Claim
131 words
A VEHICLE FLUID VALVE BRAKE SYSTEM HAVING A SOURCE OF FLUID PRESSURE, A FLUID PRESSURE ACTUATOR FOR NORMALLY APPLYING A VEHICLE BRAKE, A SPRING OPERATED FLUID PRESSURE RELEASED ACTUATOR FOR MECHANICALLY APPLYING THE BRAKE WHEN THE FLUID PRESSURE FROM SAID SOURCE IS BELOW A PREDETERMINED PRESSURE, A MANUALLY OPERABLE VALVE HAVING AN INLET PORT CONNECTED WITH SAID SOURCE, AN OUTLET PORT AND AN EXHAUST PORT CONNECTED TO ATMOSPHERE, MEANS INCLUDING A SELECTIVELY OPERABLE VALVE FOR CONNECTING SAID OUTLET PORT WITH SAID SPRING OPERATED ACTUATOR, SAID VALVE ALSO HAVING A MANUALLY MOVABLE VALVE ELEMENT MOVABLE TO ONE POSITION TO CONNECT SAID INLET AND OUTLET PORTS AND MOVABLE TO A SECOND POSITION TO CONNECT SAID OUTLET AND EXHAUST PORTS, A MANUALLY OPERABLE BRAKE VALVE MOVABLE TO CONNECT SAID SOURCE AND FLUID PRESSURE ACTU-
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |