US3303901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission
Assignee: Rockwell-Standard Corp
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Filing: 1964-12-31
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Granted: 1967-02-14
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Carl E Schou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:20
CPC Classifications
F; F16; F16D; F16D57/00; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; F16H; F16H39/00; F16H39/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A HYDROSTATIC TRANSMISSION SYSTEM FOR A VEHICLE HAVING A SOURCE OF FLUID PRESSURE AND PROVIDED WITH TWO LONGITUDINALLY SPACED SETS OF TRANSVERSELY ALIGNED GROUND ENGAGING DRIVE WHEELS, INDIVIDUAL FLUID PRESSURE MOTORS AT EACH OF SAID WHEELS, CONDUIT MEANS BETWEEN SAID SOURCE AND SAID MOTORS FOR SUPPLYING MOTIVE FLUID TO ALL OF SAID WHEEL MOTORS, AND COMPENSATING MEANS IN SAID CONDUIT MEANS FOR MAINTAINING SUBSTANTIALLY EQUAL TORQUE TO EACH PAIR OF TRANSVERSELY ALIGNED GROUND ENGAGING DRIVE WHEELS.
Claim 2
Dependent Claim
77 words
IN A HYDROSTATIC TRANSMISSION SYSTEM FOR A VEHICLE HAVING A SOURCE OF FLUID PRESSURE AND PROVIDED WITH TWO LONGITUDINALLY SPACED SETS OF TRANSVERSELY ALIGNED GROUND ENGAGING DRIVE WHEELS, INDIVIDUAL FLUID PRESSURE MOTORS AT EACH OF SAID WHEELS, CONDUIT MEANS BETWEEN SAID SOURCE AND SAID MOTORS FOR SUPPLYING MOTIVE FLUID TO ALL OF SAID WHEEL MOTORS, AND COMPENSATING MEANS IN SAID CONDUIT MEANS FOR MAINTAINING SUBSTANTIALLY EQUAL TORQUE TO EACH PAIR OF TRANSVERSELY ALIGNED GROUND ENGAGING DRIVE WHEELS.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |