Patent US3237525A successfully refreshed from Google Patents.
US3237525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure motor mechanism
Assignee: ZF Active Safety US Inc
•
Filing: 1963-12-27
•
Granted: 1966-03-01
•
Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Stelzer William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:26
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/573; B60T13/577
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A FLUID PRESSURE MOTOR MECHANISM, A MOTOR CASING, A PRESSURE RESPONSIVE UNIT FORMING WITH SAID CASING AN EXPANSIBLE CHAMBER, SAID UNIT COMPRISING A RIGID AXIAL PORTION AND A WALL CONNECTING SUCH PORTION TO SAID CASING, SAID WALL BEING TILTABLE TO AN ANGULAR POSITION RELATIVE TO A PLANE TRANSVERSE TO THE AXIS OF SAID CASING, A MANUALLY OPERABLE VALVE MECHANISM TO DIRECT FLUID PRESSURE FROM A SOURCE TO SAID EXPANSIBLE CHAMBER AND FROM SAID CHAMBER, AND MEANS HAVING MECHANICAL ENGAGEMENT WITH SAID RIGID PORTION OF SAID UNIT, WITH SAID MANUALLY OPERABLE VALVE MECHANISM AND WITH SAID WALL SOLELY TO ONE SIDE OF THE AXIS OF SAID RIGID PORTION TO BE MOVED INCIDENT TO OPERATION OF SAID VALVE MECHANISM AND BY TILTING MOVEMENT OF SAID MOVABLE WALL INCIDENT TO INCREASES IN PRESSURE IN SAID EXPANSIBLE CHAMBER TO OPPOSE OPERATION OF SAID VALVE MECHANISM TO THEREBY TEND TO REDUCE THE POWER OF THE MOTOR MECHANISM.
Claim 2
Dependent Claim
153 words
IN A FLUID PRESSURE MOTOR MECHANISM, A MOTOR CASING, A PRESSURE RESPONSIVE UNIT FORMING WITH SAID CASING AN EXPANSIBLE CHAMBER, SAID UNIT COMPRISING A RIGID AXIAL PORTION AND A WALL CONNECTING SUCH PORTION TO SAID CASING, SAID WALL BEING TILTABLE TO AN ANGULAR POSITION RELATIVE TO A PLANE TRANSVERSE TO THE AXIS OF SAID CASING, A MANUALLY OPERABLE VALVE MECHANISM TO DIRECT FLUID PRESSURE FROM A SOURCE TO SAID EXPANSIBLE CHAMBER AND FROM SAID CHAMBER, AND MEANS HAVING MECHANICAL ENGAGEMENT WITH SAID RIGID PORTION OF SAID UNIT, WITH SAID MANUALLY OPERABLE VALVE MECHANISM AND WITH SAID WALL SOLELY TO ONE SIDE OF THE AXIS OF SAID RIGID PORTION TO BE MOVED INCIDENT TO OPERATION OF SAID VALVE MECHANISM AND BY TILTING MOVEMENT OF SAID MOVABLE WALL INCIDENT TO INCREASES IN PRESSURE IN SAID EXPANSIBLE CHAMBER TO OPPOSE OPERATION OF SAID VALVE MECHANISM TO THEREBY TEND TO REDUCE THE POWER OF THE MOTOR MECHANISM.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |