US3148502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission arrangement for tractor loaders
Assignee: Frank G Hough Co
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Filing: 1961-06-28
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Granted: 1964-09-15
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Expires: 1981-06-28
Abstract
No abstract record available.
Inventors
- 👤 Thorvald G Granryd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:55
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; F; F15; F15B; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/20576; F15B2211/30; F15B2211/31; F15B2211/3105; F15B2211/3116; F15B2211/315; F15B2211/3157; F15B2211/31582; F15B2211/32; F15B2211/327; F15B2211/50; F15B2211/515; F15B2211/5151; F15B2211/5152; F15B2211/55; F15B2211/60; F15B2211/62; F15B2211/70; F15B2211/71; F15B2211/7142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A HYDROSTATIC TRANSMISSION ARRANGEMENT FOR A TRACTOR LOADER INCLUDING AN ENGINE, AND A LOADER MOTOR, A PAIR OF PUMPS CONNECTED TO BE DRIVEN BY THE ENGINE OF SAID TRACTOR LOADER, A LOADER PUMP FOR SUPPLYING FLUID TO OPERATE SAID LOADER MOTOR AND CONNECTED TO BE DRIVEN BY SAID ENGINE SAID HYDROSTATIC ARRANGEMENT BEING CONNECTED TO SAID PAIR OF PUMPS AND TO DRIVE SAID TRACTOR LOADER, AND COMPRISING MEANS FOR CONNECTING SAID PAIR OF PUMPS IN PARALLEL TO DRIVE SAID TRACTOR LOADER, AND MEANS FOR VENTING ONE OF SAID PAIR OF PUMPS WHEN SAID LOADER PUMP IS SUPPLYING FLUID TO OPERATE SAID LOADER MOTOR.
Claim 2
Dependent Claim
103 words
A HYDROSTATIC TRANSMISSION ARRANGEMENT FOR A TRACTOR LOADER INCLUDING AN ENGINE, AND A LOADER MOTOR, A PAIR OF PUMPS CONNECTED TO BE DRIVEN BY THE ENGINE OF SAID TRACTOR LOADER, A LOADER PUMP FOR SUPPLYING FLUID TO OPERATE SAID LOADER MOTOR AND CONNECTED TO BE DRIVEN BY SAID ENGINE SAID HYDROSTATIC ARRANGEMENT BEING CONNECTED TO SAID PAIR OF PUMPS AND TO DRIVE SAID TRACTOR LOADER, AND COMPRISING MEANS FOR CONNECTING SAID PAIR OF PUMPS IN PARALLEL TO DRIVE SAID TRACTOR LOADER, AND MEANS FOR VENTING ONE OF SAID PAIR OF PUMPS WHEN SAID LOADER PUMP IS SUPPLYING FLUID TO OPERATE SAID LOADER 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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |