US3360932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary emittance valve
Assignee: International Motors LLC
•
Filing: 1966-05-05
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Granted: 1968-01-02
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Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Richard J Lech
- 👤 Joseph F Ziskal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:12
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/09; B62D5/093; B62D5/097
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A HYDROSTATIC POWER STEERING SYSTEM HAVING A FLUID POWER MOTOR ADAPTED FOR TURNING THE STEERABLE WHEELS OF A VEHICLE, A SOURCE OF FLUID PRESSURE, A SHUTTLE VALVE ACTUABLE FOR CONTROLLING FLUID FLOW TO OPPOSITE ENDS OF SAID MOTOR FOR OPERATION THEREOF, AND A HAND-PUMP ASSEMBLY OPERATIVE FOR HYDRAULICALLY ACTUATING SAID SHUTTLE VALVE AND FOR PROVIDING FLUID PRESSURE TO SAID SYSTEM UPON INTERRUPTION OF FLOW FROM SAID SOURCE OF FLUID PRESSURE, THE COMBINATION THEREWITH OF VALVING MEANS INTERPOSED IN THE SYSTEM BETWEEN SAID SOURCE AND SAID SHUTTLE VALVE AND OPERATIVE FOR SELECTIVELY ADMITTING AND INTERRUPTING FLUID FLOW FROM SAID SOURCE TO SAID SHUTTLE VALVE, SAID HAND-PUMP AND SAID VALVING MEANS BEING OPERATIVE RESPONSIVE TO THE TURNING OF AN ASSOCIATED OPERATOR''S CONTROL WHEEL.
Claim 2
Dependent Claim
122 words
IN A HYDROSTATIC POWER STEERING SYSTEM HAVING A FLUID POWER MOTOR ADAPTED FOR TURNING THE STEERABLE WHEELS OF A VEHICLE, A SOURCE OF FLUID PRESSURE, A SHUTTLE VALVE ACTUABLE FOR CONTROLLING FLUID FLOW TO OPPOSITE ENDS OF SAID MOTOR FOR OPERATION THEREOF, AND A HAND-PUMP ASSEMBLY OPERATIVE FOR HYDRAULICALLY ACTUATING SAID SHUTTLE VALVE AND FOR PROVIDING FLUID PRESSURE TO SAID SYSTEM UPON INTERRUPTION OF FLOW FROM SAID SOURCE OF FLUID PRESSURE, THE COMBINATION THEREWITH OF VALVING MEANS INTERPOSED IN THE SYSTEM BETWEEN SAID SOURCE AND SAID SHUTTLE VALVE AND OPERATIVE FOR SELECTIVELY ADMITTING AND INTERRUPTING FLUID FLOW FROM SAID SOURCE TO SAID SHUTTLE VALVE, SAID HAND-PUMP AND SAID VALVING MEANS BEING OPERATIVE RESPONSIVE TO THE TURNING OF AN ASSOCIATED OPERATOR''S CONTROL WHEEL.
References Cited (Backward Citations)
US2984215A
Cited
US3059717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |