US3123975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ebert
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:43
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/42; F16H47/00; F16H47/02; F16H47/04; F16H2047/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
244 words
IN A HYDROSTATIC TRANSMISSION WITH SWASH PLATE OPERATED PISTONS, A FLUID CONVEYING MEMBER HAVING PRESSURE FLUID AND SUCTION FLUID CONVEYING MEANS AND ALSO INCLUDING CONTROL VALVE MEANS ASSOCIATED WITH SAID PRESSURE FLUID AND SUCTION FLUID CONVEYING MEANS, AT LEAST THREE HYDRAULIC UNITS OF THE AXIAL PISTON TYPE ARRANGED ON ONE AND THE SAME SIDE OF SAID ONE FLUID CONVEYING MEMBER, EACH ONE OF SAID UNIT HAVING A SWASH PLATE AND ALSO HAVING A CYLINDER BLOCK ROTATABLE RELATIVE TO SAID FLUID CONVEYING MEMBER AND PROVIDED WITH A PLURALITY OF CYLINDERS EXTENDING SUBSTANTIALLY IN THE DIRECTION OF THE AXES OF ROTATION OF SAID CYLINDER BLOCKS, SAID CYLINDER BLOCKS ENGAGING SAID FLUID CONVEYING MEMBER AND SAID CYLINDERS REGISTERING WITH SAID CONTROL VALVE MEANS AS SAID CYLINDER BLOCKS ROTATE, THE AXES OF ROTATION OF SAID CYLINDER BLOCKS BEING SUBSTANTIALLY PARALLEL TO EACH OTHER, A PLURALITY OF PISTONS RESPECTIVELY RECIPROCABLE IN SAID CYLINDERS AND ACTING UPON THE RESPECTIVE SWASH PLATE, THE PLANE OF EACH OF SAID SWASH PLATES IN EACH RESPECTIVE ANGULAR POSITION THEREOF REMAINING STATIONARY RELATIVE TO SAID FLUID CONVEYING MEMBER WHILE THE RESPECTIVE UNIT OPERATES AT THE RESPECTIVE ANGULAR POSITION OF THE RESPECTIVE SWASH PLATE, CONDUIT MEANS EXTENDING IN AXIAL DIRECTION OF SAID CYLINDERS, SAID CONTROL VALVE MEANS BEING OPERABLE IN RESPONSE TO THE ROTATION OF SAID CYLINDER BLOCKS TO ALTERNATELY CONNECT SAID CYLINDERS OF SAID CYLINDER BLOCKS WITH SAID PRESSURE FLUID AND SAID SUCTION FLUID CONVEYING MEANS RESPECTIVELY ALONG PLANES PARALLEL TO EACH OTHER AND PERPEN-
Claim 2
Dependent Claim
244 words
IN A HYDROSTATIC TRANSMISSION WITH SWASH PLATE OPERATED PISTONS, A FLUID CONVEYING MEMBER HAVING PRESSURE FLUID AND SUCTION FLUID CONVEYING MEANS AND ALSO INCLUDING CONTROL VALVE MEANS ASSOCIATED WITH SAID PRESSURE FLUID AND SUCTION FLUID CONVEYING MEANS, AT LEAST THREE HYDRAULIC UNITS OF THE AXIAL PISTON TYPE ARRANGED ON ONE AND THE SAME SIDE OF SAID ONE FLUID CONVEYING MEMBER, EACH ONE OF SAID UNIT HAVING A SWASH PLATE AND ALSO HAVING A CYLINDER BLOCK ROTATABLE RELATIVE TO SAID FLUID CONVEYING MEMBER AND PROVIDED WITH A PLURALITY OF CYLINDERS EXTENDING SUBSTANTIALLY IN THE DIRECTION OF THE AXES OF ROTATION OF SAID CYLINDER BLOCKS, SAID CYLINDER BLOCKS ENGAGING SAID FLUID CONVEYING MEMBER AND SAID CYLINDERS REGISTERING WITH SAID CONTROL VALVE MEANS AS SAID CYLINDER BLOCKS ROTATE, THE AXES OF ROTATION OF SAID CYLINDER BLOCKS BEING SUBSTANTIALLY PARALLEL TO EACH OTHER, A PLURALITY OF PISTONS RESPECTIVELY RECIPROCABLE IN SAID CYLINDERS AND ACTING UPON THE RESPECTIVE SWASH PLATE, THE PLANE OF EACH OF SAID SWASH PLATES IN EACH RESPECTIVE ANGULAR POSITION THEREOF REMAINING STATIONARY RELATIVE TO SAID FLUID CONVEYING MEMBER WHILE THE RESPECTIVE UNIT OPERATES AT THE RESPECTIVE ANGULAR POSITION OF THE RESPECTIVE SWASH PLATE, CONDUIT MEANS EXTENDING IN AXIAL DIRECTION OF SAID CYLINDERS, SAID CONTROL VALVE MEANS BEING OPERABLE IN RESPONSE TO THE ROTATION OF SAID CYLINDER BLOCKS TO ALTERNATELY CONNECT SAID CYLINDERS OF SAID CYLINDER BLOCKS WITH SAID PRESSURE FLUID AND SAID SUCTION FLUID CONVEYING MEANS RESPECTIVELY ALONG PLANES PARALLEL TO EACH OTHER AND PERPEN-
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |