US3302532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydraulic power steering system
Assignee: —
•
Filing: —
•
Granted: 1967-02-07
•
Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:26
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/09; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A HYDRAULIC SYSTEM, A SOURCE OF HYDRAULIC FLUID CONTAINING DISCREET MAGNETIZABLE OF HYDRAULIC FLUID TIVITY AND OPERATIVE WHEN MAGETIZED TO IMPEDE FLOW OF SAID FLUID, A PUMP, A TWO-WAY HYDRAULIC MOTOR HAVING TWO FLUID CONNECTIONS, EACH ADAPTED TO RECEIVE OR RETURN PRESSURE FLUID IN ACCORDANCE WITH THE DIRECTION OF MOTOR OPERATION, A VALVE HAVING AN INLET FOR RECEIVING FLUID UNDER PRESSURE FROM SAID PUMP, SAID VALVE FURTHER HAVING TWO OPENINGS CONNECTED TO SAID MOTOR CONNECTIONS, TWO OUTLETS FOR RETURN OF FLUID TO SAID SOURCE, TWO PASSAGES CONNECTING SAID INLET TO SAID OPENINGS AND TWO PASSAGES CONNECTING SAID OPENINGS TO SAID OUTLETS, ELECTROMAGNET MEANS ADJACENT EACH SAID PASSAGE AND ENERGIZABLE TO MAG-
Claim 2
Dependent Claim
112 words
IN A HYDRAULIC SYSTEM, A SOURCE OF HYDRAULIC FLUID CONTAINING DISCREET MAGNETIZABLE OF HYDRAULIC FLUID TIVITY AND OPERATIVE WHEN MAGETIZED TO IMPEDE FLOW OF SAID FLUID, A PUMP, A TWO-WAY HYDRAULIC MOTOR HAVING TWO FLUID CONNECTIONS, EACH ADAPTED TO RECEIVE OR RETURN PRESSURE FLUID IN ACCORDANCE WITH THE DIRECTION OF MOTOR OPERATION, A VALVE HAVING AN INLET FOR RECEIVING FLUID UNDER PRESSURE FROM SAID PUMP, SAID VALVE FURTHER HAVING TWO OPENINGS CONNECTED TO SAID MOTOR CONNECTIONS, TWO OUTLETS FOR RETURN OF FLUID TO SAID SOURCE, TWO PASSAGES CONNECTING SAID INLET TO SAID OPENINGS AND TWO PASSAGES CONNECTING SAID OPENINGS TO SAID OUTLETS, ELECTROMAGNET MEANS ADJACENT EACH SAID PASSAGE AND ENERGIZABLE TO MAG-
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |