Patent US3149464A successfully refreshed from Google Patents.
US3149464A
Expired / Lapsed
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Hydraulic devices for synchronizing the hydraulic motors associated with the wheels of a vehicle
Assignee: Richier SA
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Filing: 1962-10-30
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Granted: 1964-09-22
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Fauchere Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:04
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47; F16H39/00; F16H39/02; F16H61/44; F16H61/456; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A HYDRAULIC TRANSMISSION SYSTEM TO MOVE A PLURALITY OF LOADS, COMPRISING A COMPRESSED HYDRAULIC FLUID GENERATING CIRCUIT HAVING A DISTRIBUTOR, A PLURALITY OF FEED VALVES CONNECTED TO SAID DISTRIBUTOR, A PLURALITY OF PILOT LINES EACH ADAPTED WHEN COMPRESSED FLUID IS SUPPLIED THERETO TO CAUSE THE CLOSING OF ONE OF SAID FEED VALVES, AND A MULTIPLE VALVE CONTROLLING AT WILL THE SEPARATE DELIVERY OF COMPRESSED FLUID TO SAID PILOT LINES, AND THUS THE SEPARATE CLOSING OF SAID FEED VALVES; A PLURALITY OF HYDRAULIC MOTORS EACH CONNECTED TO ONE OF SAID FEED VALVES AND HAVING A SHAFT MECHANICALLY CONNECTED TO ONE OF SAID LOADS TO BE MOVED; AN AUXILIARY HYDRAULIC CIRCUIT, A PLURALITY OF PUMPS MOUNTED IN SERIES IN SAID AUXILIARY HYDRAULIC CIRCUIT AND MECHANICALLY CONNECTED TO THE SHAFTS OF SAID HYDRAULIC MOTORS; AND A PLURALITY OF HYDRAULIC CONNECTIONS BETWEEN SAID AUXILIARY CIRCUIT AND SAID PILOT LINES, EACH ONE OF SAID HYDRUALIC CONNECTIONS CAUSING THE OUTLET OF EACH PUMP TO COMMUNICATE WITH SAID ONE PILOT LINE WHICH IS ADAPTED, WHEN COMPRESSED FLUID IS SUPPLIED THERETO, TO CAUSE THE CLOSING OF THE FEED VALVE OF SAID ONE HYDRAULIC MOTOR OF WHICH THE SHAFT IS MECHANICALLY CONNECTED TO SAID PUMP.
Claim 2
Dependent Claim
196 words
A HYDRAULIC TRANSMISSION SYSTEM TO MOVE A PLURALITY OF LOADS, COMPRISING A COMPRESSED HYDRAULIC FLUID GENERATING CIRCUIT HAVING A DISTRIBUTOR, A PLURALITY OF FEED VALVES CONNECTED TO SAID DISTRIBUTOR, A PLURALITY OF PILOT LINES EACH ADAPTED WHEN COMPRESSED FLUID IS SUPPLIED THERETO TO CAUSE THE CLOSING OF ONE OF SAID FEED VALVES, AND A MULTIPLE VALVE CONTROLLING AT WILL THE SEPARATE DELIVERY OF COMPRESSED FLUID TO SAID PILOT LINES, AND THUS THE SEPARATE CLOSING OF SAID FEED VALVES; A PLURALITY OF HYDRAULIC MOTORS EACH CONNECTED TO ONE OF SAID FEED VALVES AND HAVING A SHAFT MECHANICALLY CONNECTED TO ONE OF SAID LOADS TO BE MOVED; AN AUXILIARY HYDRAULIC CIRCUIT, A PLURALITY OF PUMPS MOUNTED IN SERIES IN SAID AUXILIARY HYDRAULIC CIRCUIT AND MECHANICALLY CONNECTED TO THE SHAFTS OF SAID HYDRAULIC MOTORS; AND A PLURALITY OF HYDRAULIC CONNECTIONS BETWEEN SAID AUXILIARY CIRCUIT AND SAID PILOT LINES, EACH ONE OF SAID HYDRUALIC CONNECTIONS CAUSING THE OUTLET OF EACH PUMP TO COMMUNICATE WITH SAID ONE PILOT LINE WHICH IS ADAPTED, WHEN COMPRESSED FLUID IS SUPPLIED THERETO, TO CAUSE THE CLOSING OF THE FEED VALVE OF SAID ONE HYDRAULIC MOTOR OF WHICH THE SHAFT IS MECHANICALLY CONNECTED TO SAID PUMP.
References Cited (Backward Citations)
US2437139A
Cited
US2833362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |