Patent US3076441A successfully refreshed from Google Patents.
US3076441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure motor mechanism
Assignee: ZF Active Safety US Inc
•
Filing: 1961-11-09
•
Granted: 1963-02-05
•
Expires: 1981-11-09
Abstract
No abstract record available.
Inventors
- 👤 Jr David T Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:19
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/26; B60T13/40; B60T13/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A FLUID PRESSURE MOTOR MECHANISM COMPRISING A MOTOR HAVING A PRESSURE RESPONSIVE UNIT PROVIDED AT ONE SIDE WITH A PRESSURE CHAMBER, A STRUCTURE ENGAGING SAID PRESSURE RESPONSIVE UNIT AND MOUNTED FOR MOVEMENT COAXIALLY THEREWITH, A SOURCE OF PRESSURE, A VALVE MECHANISM OPERABLE FOR CONNECTING SAID PRESSURE CHAMBER TO SAID SOURCE TO MOVE SAID PRESSURE RESPONSIVE UNIT, MEANS FOR UTILIZING PRESSURE IN SAID SOURCE AS A FORCE TENDING TO HOLD SAID STRUCTURE IN A NORMAL OFF POSITION, SAID VALVE MECHANISM INCLUDING A MANUALLY OPERABLE MEMBER MOVABLE INTO ENGAGEMENT WITH SAID STRUCTURE TO TEND TO MOVE IT AXIALLY, AND MEANS FOR PROGRESSIVELY REDUCING SAID FORCE AS PRESSURE IN SAID PRESSURE CHAMBER IS BUILT UP BY SAID VALVE MECHANISM WHEREBY, WHEN SUBSTANTIALLY MAXIMUM PRESSURE IS BUILT UP IN SAID PRESSURE CHAMBER, SAID STRUCTURE IS RELATIVELY FREELY AXIALLY MOVABLE BY SAID MANUALLY OPERABLE MEMBER TO ASSIST SAID PRESSURE RESPONSIVE UNIT IN PERFORMING ITS WORK.
Claim 2
Dependent Claim
150 words
A FLUID PRESSURE MOTOR MECHANISM COMPRISING A MOTOR HAVING A PRESSURE RESPONSIVE UNIT PROVIDED AT ONE SIDE WITH A PRESSURE CHAMBER, A STRUCTURE ENGAGING SAID PRESSURE RESPONSIVE UNIT AND MOUNTED FOR MOVEMENT COAXIALLY THEREWITH, A SOURCE OF PRESSURE, A VALVE MECHANISM OPERABLE FOR CONNECTING SAID PRESSURE CHAMBER TO SAID SOURCE TO MOVE SAID PRESSURE RESPONSIVE UNIT, MEANS FOR UTILIZING PRESSURE IN SAID SOURCE AS A FORCE TENDING TO HOLD SAID STRUCTURE IN A NORMAL OFF POSITION, SAID VALVE MECHANISM INCLUDING A MANUALLY OPERABLE MEMBER MOVABLE INTO ENGAGEMENT WITH SAID STRUCTURE TO TEND TO MOVE IT AXIALLY, AND MEANS FOR PROGRESSIVELY REDUCING SAID FORCE AS PRESSURE IN SAID PRESSURE CHAMBER IS BUILT UP BY SAID VALVE MECHANISM WHEREBY, WHEN SUBSTANTIALLY MAXIMUM PRESSURE IS BUILT UP IN SAID PRESSURE CHAMBER, SAID STRUCTURE IS RELATIVELY FREELY AXIALLY MOVABLE BY SAID MANUALLY OPERABLE MEMBER TO ASSIST SAID PRESSURE RESPONSIVE UNIT IN PERFORMING ITS WORK.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |