US3142965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual action master brake cylinder assembly
Assignee: Individual
•
Filing: 1963-09-20
•
Granted: 1964-08-04
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Hazelbaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:51
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/20; B60T11/203; B60T11/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A BRAKE SYSTEM OR THE LIKE, A PAIR OF PARALLEL MASTER CYLINDERS, A PAIR OF PISTONS AXIALLY SLIDABLE IN SAID MASTER CYLINDERS, EACH PISTON HAVING A CONCAVITY IN THE REAR FACE THEREOF, AN ACTUATOR REARWARDLY OF AND BETWEEN SAID CYLINDERS AND ADAPTED TO BE MOVED BY A BRAKE PEDAL, SAID ACTUATOR HAVING A CONCAVE FACE ON THE END THEREOF TOWARDS SAID PISTONS, AND A U-SHAPED CONNECTING ASSEMBLY BETWEEN SAID PISTONS AND SAID ACTUATOR, SAID U-SHAPED CONNECTING ASSEMBLY HAVING A PAIR OF PUSH RODS WITH ROUNDED ENDS EACH ENGAGING IN THE CONCAVITIES OF THE REAR FACES OF SAID PISTONS AND HAVING A SPHERE ROTATABLY MOUNTED IN THE SURFACE OF THE BIGHT THEREOF FACING SAID CONCAVE FACE OF SAID ACTUATOR, SAID SPHERE RESTING AGAINST SAID CONCAVE FACE.
Claim 2
Dependent Claim
126 words
IN A BRAKE SYSTEM OR THE LIKE, A PAIR OF PARALLEL MASTER CYLINDERS, A PAIR OF PISTONS AXIALLY SLIDABLE IN SAID MASTER CYLINDERS, EACH PISTON HAVING A CONCAVITY IN THE REAR FACE THEREOF, AN ACTUATOR REARWARDLY OF AND BETWEEN SAID CYLINDERS AND ADAPTED TO BE MOVED BY A BRAKE PEDAL, SAID ACTUATOR HAVING A CONCAVE FACE ON THE END THEREOF TOWARDS SAID PISTONS, AND A U-SHAPED CONNECTING ASSEMBLY BETWEEN SAID PISTONS AND SAID ACTUATOR, SAID U-SHAPED CONNECTING ASSEMBLY HAVING A PAIR OF PUSH RODS WITH ROUNDED ENDS EACH ENGAGING IN THE CONCAVITIES OF THE REAR FACES OF SAID PISTONS AND HAVING A SPHERE ROTATABLY MOUNTED IN THE SURFACE OF THE BIGHT THEREOF FACING SAID CONCAVE FACE OF SAID ACTUATOR, SAID SPHERE RESTING AGAINST SAID CONCAVE FACE.
References Cited (Backward Citations)
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Cited
US2018685A
Cited
US2160074A
Cited
US2596119A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |