US3115067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power brake for motor vehicles
Assignee: ZF Active Safety US Inc
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Filing: 1961-09-11
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Granted: 1963-12-24
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Jr David T Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/242; B60T13/244
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MOTOR MECHANISM COMPRISING A FLUID PRESSURE MOTOR HAVING A PRESSURE RESPONSIVE MEMBER PROVIDED WITH A PRESSURE CHAMBER AT ONE SIDE THEREOF, A VALVE MECHANISM COMPRISING A PLURALITY OF VALVE ELEMENTS, A PAIR OF CO-AXIAL UNITS, MANUALLY OPERABLE MEANS CONNECTED TO ONE OF SAID UNITS FOR MOVING IT TO OPERATE SAID VALVE MECHANISM TO CONNECT SAID PRESSURE CHAMBER TO A SOURCE OF PRESSURE, SAID OTHER UNIT BEING AXIALLY MOVABLE AND BEING NORMALLY STATIONARY IN ABUTTING ENGAGEMENT WITH SAID PRESSURE RESPONSIVE MEMBER WHEN THE LATTER IS IN OFF POSITION AND FREE THEREFROM SO THAT SAID PRESSURE RESPONSIVE MEMBER IS MOVABLE INDEPENDENTLY OF SAID OTHER UNIT, SAID OTHER UNIT BEING BIASED TO ITS NORMAL POSITION WHEREBY MOVEMENT OF SAID ONE UNIT RELATIVE TO SAID OTHER UNIT OPERATES SAID VALVE MECHANISM TO CONNECT SAID PRESSURE
Claim 2
Dependent Claim
132 words
A MOTOR MECHANISM COMPRISING A FLUID PRESSURE MOTOR HAVING A PRESSURE RESPONSIVE MEMBER PROVIDED WITH A PRESSURE CHAMBER AT ONE SIDE THEREOF, A VALVE MECHANISM COMPRISING A PLURALITY OF VALVE ELEMENTS, A PAIR OF CO-AXIAL UNITS, MANUALLY OPERABLE MEANS CONNECTED TO ONE OF SAID UNITS FOR MOVING IT TO OPERATE SAID VALVE MECHANISM TO CONNECT SAID PRESSURE CHAMBER TO A SOURCE OF PRESSURE, SAID OTHER UNIT BEING AXIALLY MOVABLE AND BEING NORMALLY STATIONARY IN ABUTTING ENGAGEMENT WITH SAID PRESSURE RESPONSIVE MEMBER WHEN THE LATTER IS IN OFF POSITION AND FREE THEREFROM SO THAT SAID PRESSURE RESPONSIVE MEMBER IS MOVABLE INDEPENDENTLY OF SAID OTHER UNIT, SAID OTHER UNIT BEING BIASED TO ITS NORMAL POSITION WHEREBY MOVEMENT OF SAID ONE UNIT RELATIVE TO SAID OTHER UNIT OPERATES SAID VALVE MECHANISM TO CONNECT SAID PRESSURE
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 |