US3139006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant speed hydraulic drive
Assignee: Individual
•
Filing: 1961-09-11
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Granted: 1964-06-30
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:06
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/06; F03C1/0678; F03C1/0686; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A FLUID PRESSURE TRANSLATING DEVICE COMPRISING IN COMBINATION, A FLUID MOTOR, SAID MOTOR HAVING A ROTATING BARREL, A STATIONARY TILTABLE CAM PLATE, A PLURALITY OF PISTONS DISPOSED IN SAID BARREL AND ADAPTED TO COACT AGAINST SAID CAM PLATE, A DRIVE SHAFT CONNECTED TO SAID BARREL AND ADAPTED TO DRIVE A LOAD, VALVE MEANS ARRANGED TO ADMIT AND DISCHARGE FLUID TO SAID PISTONS TO ROTATE SAID CYLINDER BARREL, CONTROL MEANS, SAID CONTROL MEANS INCLUDING A DIFFERENTIAL, SAID DIFFERENTIAL HAVING A FIRST GEAR DRIVINGLY CONNECTED TO SAID CYLINDER BARREL, A SECOND GEAR DRIVINGLY CONNECTED TO A LOW POWER INPUT SPEED CONTROL MEANS ROTATABLE AT A CONSTANT SPEED, A THIRD GEAR DRIVINGLY INTERCONNECTING SAID FIRST AND SECOND GEARS, SAID GEARS BEING MOUNTED TO ALLOW ANGULAR DISPLACEMENT OF SAID THIRD GEAR WHEN THE SPEED OF THE DRIVEN LOAD DIFFERS FROM THE SPEED OF THE LOW INPUT SPEED CONTROL MEANS, AND MEANS TO CHANGE THE ANGLE OF SAID CAM PLATE RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID THIRD GEAR.
Claim 2
Dependent Claim
163 words
A FLUID PRESSURE TRANSLATING DEVICE COMPRISING IN COMBINATION, A FLUID MOTOR, SAID MOTOR HAVING A ROTATING BARREL, A STATIONARY TILTABLE CAM PLATE, A PLURALITY OF PISTONS DISPOSED IN SAID BARREL AND ADAPTED TO COACT AGAINST SAID CAM PLATE, A DRIVE SHAFT CONNECTED TO SAID BARREL AND ADAPTED TO DRIVE A LOAD, VALVE MEANS ARRANGED TO ADMIT AND DISCHARGE FLUID TO SAID PISTONS TO ROTATE SAID CYLINDER BARREL, CONTROL MEANS, SAID CONTROL MEANS INCLUDING A DIFFERENTIAL, SAID DIFFERENTIAL HAVING A FIRST GEAR DRIVINGLY CONNECTED TO SAID CYLINDER BARREL, A SECOND GEAR DRIVINGLY CONNECTED TO A LOW POWER INPUT SPEED CONTROL MEANS ROTATABLE AT A CONSTANT SPEED, A THIRD GEAR DRIVINGLY INTERCONNECTING SAID FIRST AND SECOND GEARS, SAID GEARS BEING MOUNTED TO ALLOW ANGULAR DISPLACEMENT OF SAID THIRD GEAR WHEN THE SPEED OF THE DRIVEN LOAD DIFFERS FROM THE SPEED OF THE LOW INPUT SPEED CONTROL MEANS, AND MEANS TO CHANGE THE ANGLE OF SAID CAM PLATE RESPONSIVE TO ANGULAR DISPLACEMENT OF SAID THIRD GEAR.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |