Patent US3272279A successfully refreshed from Google Patents.
US3272279A
Expired / Lapsed
US
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Fluid pressure operated drive and clutch systems
Assignee: Individual
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Filing: 1964-06-08
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Granted: 1966-09-13
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Budzich Tadeusz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:51
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; B60K17/34; B60K17/356; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16H45/00; F16H59/00; F16H59/68; F16H2059/6838; F16H2059/6861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A SELF-PROPELLED VEHICLE HAVING A FRAME, ENGINE, AND DRIVING WHEELS MOUNTED ON SAID FRAME, DRIVING MEANS INTERPOSED BETWEEN SAID ENGINE AND SAID DRIVING WHEELS AT LEAST ONE STEERING WHEEL PIVOTALLY MOUNTED ON SAID FRAME, THE COMBINATION THERWEITH OF A FLUID POWER TRANSMISSION AND CONTROL SYSTEM DRIVINGLY CONNECTED TO EACH OF SAID STEERING WHEELS COMPRISING, A FLUID MOTOR MOUNTED ON EACH OF SAID STEERING WHEELS AND DRIVINGLY ENGAGED THEREWITH, A VARIABLE FLOW PUMP CONNECTED TO SUPPLY PRESSURE FLUID TO EACH OF SAID MOTORS, PRESSURE RESPONSIVE CONTROL MEANS TO VARY THE FLOW OF SAID PRESSURE FLUID FROM SAID PUMP TO MAINTAIN RELATIVELY CONSTANT SYSTEM PRESSURE, SYSTEM-PRESSURE SENSITIVE CLUTCH MEANS INTERPOSED BETWEEN EACH OF SAID FLUID MOTORS AND SAID STEERING WHEELS, SAID CLUTCH MEANS HAVING FORCE GENERATING MEANS DISPOSED TO SYPPLY AN ACTUATING FORCE PROPORTIONAL TO THE SYSTEM PRESSURE TO THE CLUTCH MEANS, AND DUCT MEANS TO SUPPLY FLUID PRESSURE FROM SAID VARIABLE FLOW PUMP TO SAID SYSTEM PRESSURE SENSITIVE CLUTCH MEANS.
Claim 2
Dependent Claim
160 words
IN A SELF-PROPELLED VEHICLE HAVING A FRAME, ENGINE, AND DRIVING WHEELS MOUNTED ON SAID FRAME, DRIVING MEANS INTERPOSED BETWEEN SAID ENGINE AND SAID DRIVING WHEELS AT LEAST ONE STEERING WHEEL PIVOTALLY MOUNTED ON SAID FRAME, THE COMBINATION THERWEITH OF A FLUID POWER TRANSMISSION AND CONTROL SYSTEM DRIVINGLY CONNECTED TO EACH OF SAID STEERING WHEELS COMPRISING, A FLUID MOTOR MOUNTED ON EACH OF SAID STEERING WHEELS AND DRIVINGLY ENGAGED THEREWITH, A VARIABLE FLOW PUMP CONNECTED TO SUPPLY PRESSURE FLUID TO EACH OF SAID MOTORS, PRESSURE RESPONSIVE CONTROL MEANS TO VARY THE FLOW OF SAID PRESSURE FLUID FROM SAID PUMP TO MAINTAIN RELATIVELY CONSTANT SYSTEM PRESSURE, SYSTEM-PRESSURE SENSITIVE CLUTCH MEANS INTERPOSED BETWEEN EACH OF SAID FLUID MOTORS AND SAID STEERING WHEELS, SAID CLUTCH MEANS HAVING FORCE GENERATING MEANS DISPOSED TO SYPPLY AN ACTUATING FORCE PROPORTIONAL TO THE SYSTEM PRESSURE TO THE CLUTCH MEANS, AND DUCT MEANS TO SUPPLY FLUID PRESSURE FROM SAID VARIABLE FLOW PUMP TO SAID SYSTEM PRESSURE SENSITIVE CLUTCH MEANS.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |