Patent US3151840A successfully refreshed from Google Patents.
US3151840A
Expired / Lapsed
US
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Hydraulic drive
Assignee: Individual
•
Filing: 1962-03-14
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Granted: 1964-10-06
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 John W Quynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:02
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A HYDRAULIC DRIVE DEVICE INCLUDING A CASING HAVING AN OUTLET, A ROTATABLE SHAFT EXTENDING THROUGH SAID CASING, A DRIVEN ROTOR CARRIED ON SAID SHAFT FOR ROTATION THEREWITH, AND A PLURALITY OF BLADES CARRIED ON SAID ROTOR, A SECOND ROTOR MOUNTED ON SAID SHAFT ADJACENT SAID DRIVEN ROTOR FOR FREE ROTATION AROUND SAID SHAFT AS AN AXIS, A PLURALITY OF SPACED FLAT BLADES PROJECTING FROM SAID SECOND ROTOR, SAID LAST MENTIONED BLADES HAVING THEIR FACES PARALLEL TO THE AXIS OF ROTATION OF SAID LAST MENTIONED ROTOR, SAID CASING BEING PROVIDED WITH A PAIR OF INLETS ARRANGED IN TANDEM SPACED RELATION, SAID SECOND ROTOR BLADES BEING IN TURN IN REGISTRY WITH SAID CASING INLETS, SAID DRIVEN ROTOR BLADES BEING IN TURN IN REGISTRY WITH SAID CASING OUTLET.
Claim 2
Dependent Claim
126 words
IN A HYDRAULIC DRIVE DEVICE INCLUDING A CASING HAVING AN OUTLET, A ROTATABLE SHAFT EXTENDING THROUGH SAID CASING, A DRIVEN ROTOR CARRIED ON SAID SHAFT FOR ROTATION THEREWITH, AND A PLURALITY OF BLADES CARRIED ON SAID ROTOR, A SECOND ROTOR MOUNTED ON SAID SHAFT ADJACENT SAID DRIVEN ROTOR FOR FREE ROTATION AROUND SAID SHAFT AS AN AXIS, A PLURALITY OF SPACED FLAT BLADES PROJECTING FROM SAID SECOND ROTOR, SAID LAST MENTIONED BLADES HAVING THEIR FACES PARALLEL TO THE AXIS OF ROTATION OF SAID LAST MENTIONED ROTOR, SAID CASING BEING PROVIDED WITH A PAIR OF INLETS ARRANGED IN TANDEM SPACED RELATION, SAID SECOND ROTOR BLADES BEING IN TURN IN REGISTRY WITH SAID CASING INLETS, SAID DRIVEN ROTOR BLADES BEING IN TURN IN REGISTRY WITH SAID CASING OUTLET.
References Cited (Backward Citations)
US660317A
Cited
US953241A
Cited
FR539882A
Cited
US1434336A
Cited
US1461422A
Cited
US1945373A
Cited
US2451944A
Cited
DE893117C
Cited
US2555312A
Cited
US2678537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |