Patent US3276207A successfully refreshed from Google Patents.
US3276207A
Expired / Lapsed
US
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Master cylinder
Assignee: Motors Liquidation Co
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Filing: 1965-05-03
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Granted: 1966-10-04
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Expires: 1985-05-03
Abstract
No abstract record available.
Inventors
- 👤 Denny L Peeples
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:41
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A MASTER CYLINDER ASSEMBLY COMPRISING A BODY HAVING A FLUID RESERVOIR AND A CYLINDER BORE, A PRESSURIZED FLUID OUTLET AT ONE END OF SAID BORE, A SLEEVE IN SAID BORE HAVING A FIRST CHAMBER THEREIN COMMUNICATING WITH SAID OUTLET AND AN END PROVIDING A CHECK VALVE SEAT, A PRESSURIZING PISTON IN SAID BORE SPACED FROM SAID PRESSURIZING PISTON IN SAID BORE SPACED FROM SAID CHECK VALVE, A SPRING BETWEEN SAID CHECK VALVE AND SAID PISTON URGING SAID CHECK VALVE INTO SEATING ENGAGEMENT WITH SAID SEAT AND URGING SAID PISTON TO A PRESSURE RELEASE POSITION, SAID CHECK VALVE AND SAID PISTON AND A PORTION OF SAID BORE DEFINING A FLUID PRESSURIZING SECOND CHAMBER CONTAINING SAID SPRING, AND COMPENSATING PASSAGE MEANS CONNECTING SAID RESERVOIR AND SAID CHECK VALVE SEAT ON THE SIDE THEREOF OPPOSITE SAID FIRST CHAMBER, SAID CHECK VALVE ALSO SEPARATING SAID COMPENSATING PASSAGE MEANS AND SAID SECOND CHAMBER.
Claim 2
Dependent Claim
148 words
A MASTER CYLINDER ASSEMBLY COMPRISING A BODY HAVING A FLUID RESERVOIR AND A CYLINDER BORE, A PRESSURIZED FLUID OUTLET AT ONE END OF SAID BORE, A SLEEVE IN SAID BORE HAVING A FIRST CHAMBER THEREIN COMMUNICATING WITH SAID OUTLET AND AN END PROVIDING A CHECK VALVE SEAT, A PRESSURIZING PISTON IN SAID BORE SPACED FROM SAID PRESSURIZING PISTON IN SAID BORE SPACED FROM SAID CHECK VALVE, A SPRING BETWEEN SAID CHECK VALVE AND SAID PISTON URGING SAID CHECK VALVE INTO SEATING ENGAGEMENT WITH SAID SEAT AND URGING SAID PISTON TO A PRESSURE RELEASE POSITION, SAID CHECK VALVE AND SAID PISTON AND A PORTION OF SAID BORE DEFINING A FLUID PRESSURIZING SECOND CHAMBER CONTAINING SAID SPRING, AND COMPENSATING PASSAGE MEANS CONNECTING SAID RESERVOIR AND SAID CHECK VALVE SEAT ON THE SIDE THEREOF OPPOSITE SAID FIRST CHAMBER, SAID CHECK VALVE ALSO SEPARATING SAID COMPENSATING PASSAGE MEANS AND SAID SECOND CHAMBER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |