US3279173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic drive
Assignee: Linde GmbH
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Filing: 1965-04-05
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Granted: 1966-10-18
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Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 Stolz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:45
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/42; F16H61/431; F16H39/00; F16H39/04; F16H39/06; F16H39/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A HYDROSTATIC DRIVE COMPRISING A HOUSING; A HYDROSTATIC AXIAL-PISTON PUMP IN SAID HOUSING HAVING AN INPUT SHAFT ROTATABLY MOUNTED THEREIN; AN AXIAL-PISTON HYDROSTATIC MOTOR IN SAID HOUSING HAVING AN OUTPUT SHAFT ROTATABLY MOUNTED THEREIN AND SUBSTANTIALLY PARALLEL TO SAID INPUT SHAFT, SAID SHAFTS HAVING A COMMON AXIAL PLANE; CONDUIT MEANS INTERCONNECTING SAID PUMP AND SAID MOTOR FOR CONDUCTING OPERATING FLUID TO AND FROM THE LATTER UPON ROTATION OF SAID INPUT SHAFT, SAID HYDROSTATIC MOTOR HAVING A CYLINDER DRUM AND AXIALLY ARRANGED PISTON THEREIN FOR ROTATING SAID OUTPUT SHAFT, SAID DRUM HAVING AN AXIS WHOSE PROJECTION IN A FURTHER PLANE PERPENDICULAR TO SAID SHAFTS INCLUDES WITH SAID AXIAL PLANE AN ANGLE OF SUBSTANTIALLY 30* TO 60*; AND MOUNTING MEANS FOR PIVOTALLY SUPPORTING SAID PUMP IN SAID HOUSING FOR SWINGING MOVEMENT ABOUT AN AXIS IN SAID PLANE.
Claim 2
Dependent Claim
135 words
A HYDROSTATIC DRIVE COMPRISING A HOUSING; A HYDROSTATIC AXIAL-PISTON PUMP IN SAID HOUSING HAVING AN INPUT SHAFT ROTATABLY MOUNTED THEREIN; AN AXIAL-PISTON HYDROSTATIC MOTOR IN SAID HOUSING HAVING AN OUTPUT SHAFT ROTATABLY MOUNTED THEREIN AND SUBSTANTIALLY PARALLEL TO SAID INPUT SHAFT, SAID SHAFTS HAVING A COMMON AXIAL PLANE; CONDUIT MEANS INTERCONNECTING SAID PUMP AND SAID MOTOR FOR CONDUCTING OPERATING FLUID TO AND FROM THE LATTER UPON ROTATION OF SAID INPUT SHAFT, SAID HYDROSTATIC MOTOR HAVING A CYLINDER DRUM AND AXIALLY ARRANGED PISTON THEREIN FOR ROTATING SAID OUTPUT SHAFT, SAID DRUM HAVING AN AXIS WHOSE PROJECTION IN A FURTHER PLANE PERPENDICULAR TO SAID SHAFTS INCLUDES WITH SAID AXIAL PLANE AN ANGLE OF SUBSTANTIALLY 30* TO 60*; AND MOUNTING MEANS FOR PIVOTALLY SUPPORTING SAID PUMP IN SAID HOUSING FOR SWINGING MOVEMENT ABOUT AN AXIS IN SAID PLANE.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |