US3241694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loader and tractor mechanism
Assignee: Case LLC
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Filing: 1964-10-01
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Granted: 1966-03-22
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Carl O Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:14
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/22; E02F9/2278; E02F9/2292; E02F9/02; E02F9/2221; E02F9/2239
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A HYDRAULICALLY OPERATED TRACTOR LOADER HAVING A BUCKET, AN ENGINE AND A TORQUE CONVERTOR DRIVEN FROM SAID ENGINE, SAID CONVERTOR HAVING AN OUTPUT ELEMENT, TRACTION MEANS CONNECTED IN DRIVEN RELATION TO SAID OUTPUT ELEMENT, MEANS FOR SUPPLYING HYDRAULIC FLUID UNDER PRESSURE, WHILE AVOIDING EXCESSIVE POWER CONSUMPTION, COMPRISING A FIRST FLUID PUMP DRIVEN FROM SAID ENGINE AND A SECOND FLUID PUMP DRIVEN FROM SAID TORQUE CONVERTOR OUTPUT ELEMENT, A FLUID MOTOR, CONDUIT MEANS CONNECTED WITH BOTH OF SAID FLUID PUMPS AND WITH SAID FLUID MOTOR TO INSURE ACTUATION OF THE LATTER FROM SAID FIRST PUMP EVEN THOUGH SAID SECOND PUMP IS STALLED, AND MEANS CONNECTED WITH SAID FLUID MOTOR AND WITH SAID BUCKET AND CONSTITUTED TO TILT SAID BUCKET BY REASON OF ACTUATION OF SAID FLUID MOTOR.
Claim 2
Dependent Claim
126 words
A HYDRAULICALLY OPERATED TRACTOR LOADER HAVING A BUCKET, AN ENGINE AND A TORQUE CONVERTOR DRIVEN FROM SAID ENGINE, SAID CONVERTOR HAVING AN OUTPUT ELEMENT, TRACTION MEANS CONNECTED IN DRIVEN RELATION TO SAID OUTPUT ELEMENT, MEANS FOR SUPPLYING HYDRAULIC FLUID UNDER PRESSURE, WHILE AVOIDING EXCESSIVE POWER CONSUMPTION, COMPRISING A FIRST FLUID PUMP DRIVEN FROM SAID ENGINE AND A SECOND FLUID PUMP DRIVEN FROM SAID TORQUE CONVERTOR OUTPUT ELEMENT, A FLUID MOTOR, CONDUIT MEANS CONNECTED WITH BOTH OF SAID FLUID PUMPS AND WITH SAID FLUID MOTOR TO INSURE ACTUATION OF THE LATTER FROM SAID FIRST PUMP EVEN THOUGH SAID SECOND PUMP IS STALLED, AND MEANS CONNECTED WITH SAID FLUID MOTOR AND WITH SAID BUCKET AND CONSTITUTED TO TILT SAID BUCKET BY REASON OF ACTUATION OF SAID FLUID MOTOR.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |