US3332522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle operator seat brake control system
Assignee: Doosan Bobcat North America Inc
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Filing: 1966-05-09
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Granted: 1967-07-25
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Donald S Dence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:52
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; B60T13/18; B60T7/00; B60T7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
FOR USE IN A VEHICLE HAVING A PRIME MOVER, A BRAKE, A SEAT AND A FLUID RESERVOIR, THE COMBINATION COMPRISING MEANS FOR RELEASING AND APPLYING THE BRAKE INCLUDING SPRING MEANS FOR NORMALLY APPLYING THE BRAKE AND A FLUID MOTOR OPERABLE WHEN PRESSURIZED FLUID IS SUPPLIED THERETO TO RELEASE THE BRAKE, A SOURCE OF PRESSURIZED FLUID CONNECTED TO THE RESERVOIR, THE SAID SOURCE INCLUDING A PRESSURIZED FLUID OUTLET, FIRST FLUID CONDUIT MEANS CONNECTING THE SAID OUTLET WITH THE SAID FLUID MOTOR, VALVE MEANS IN THE SAID CONDUIT MEANS, THE SAID VALVE MEANS BEING ACTUATABLE BETWEEN AN OPEN POSITION PROVIDING FLUID COMMUNICATION BETWEEN THE SAID OUTLET AND FLUID MOTOR VIA THE SAID CONDUIT MEANS AND A CLOSED POSITION BLOCKING FLUID COMMUNICATION BETWEEN THE SAID OUTLET AND FLUID MOTOR VIA THE SAID CONDUIT MEANS, MEANS BIASING THE SAID VALVE MEANS TO THE CLOSED POSITION THEREOF, THE SAID VALVE MEANS BEING OPERATIVELY CONNECTED TO THE SEAT SO THAT WHEN THE SEAT IS OCCUPIED THE SAID VALVE MEANS IS ACTUATED TO THE OPEN POSITION THEREOF AND WHEN THE SEAT IS UNOCCUPIED THE SAID BIASING MEANS ACTUATES THE SAID VALVE MEANS TO THE CLOSED POSITION THEREOF, AND MEANS FOR REDUCING THE PRESSURE OF FLUID SUPPLIED TO THE SAID FLUID MOTOR WHEN THE SAID VALVE MEANS IS ACTUATED TO THE CLOSED POSITION THEREOF.
Claim 2
Dependent Claim
216 words
FOR USE IN A VEHICLE HAVING A PRIME MOVER, A BRAKE, A SEAT AND A FLUID RESERVOIR, THE COMBINATION COMPRISING MEANS FOR RELEASING AND APPLYING THE BRAKE INCLUDING SPRING MEANS FOR NORMALLY APPLYING THE BRAKE AND A FLUID MOTOR OPERABLE WHEN PRESSURIZED FLUID IS SUPPLIED THERETO TO RELEASE THE BRAKE, A SOURCE OF PRESSURIZED FLUID CONNECTED TO THE RESERVOIR, THE SAID SOURCE INCLUDING A PRESSURIZED FLUID OUTLET, FIRST FLUID CONDUIT MEANS CONNECTING THE SAID OUTLET WITH THE SAID FLUID MOTOR, VALVE MEANS IN THE SAID CONDUIT MEANS, THE SAID VALVE MEANS BEING ACTUATABLE BETWEEN AN OPEN POSITION PROVIDING FLUID COMMUNICATION BETWEEN THE SAID OUTLET AND FLUID MOTOR VIA THE SAID CONDUIT MEANS AND A CLOSED POSITION BLOCKING FLUID COMMUNICATION BETWEEN THE SAID OUTLET AND FLUID MOTOR VIA THE SAID CONDUIT MEANS, MEANS BIASING THE SAID VALVE MEANS TO THE CLOSED POSITION THEREOF, THE SAID VALVE MEANS BEING OPERATIVELY CONNECTED TO THE SEAT SO THAT WHEN THE SEAT IS OCCUPIED THE SAID VALVE MEANS IS ACTUATED TO THE OPEN POSITION THEREOF AND WHEN THE SEAT IS UNOCCUPIED THE SAID BIASING MEANS ACTUATES THE SAID VALVE MEANS TO THE CLOSED POSITION THEREOF, AND MEANS FOR REDUCING THE PRESSURE OF FLUID SUPPLIED TO THE SAID FLUID MOTOR WHEN THE SAID VALVE MEANS IS ACTUATED TO THE CLOSED POSITION THEREOF.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |