US3322235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adjusting disc brake
Assignee: Motors Liquidation Co
•
Filing: 1966-02-14
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Granted: 1967-05-30
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Expires: 1986-02-14
Abstract
No abstract record available.
Inventors
- 👤 Lothrop M Forbush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:01
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D2121/00; F16D2121/14; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/34; F16D2125/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A DISC BRAKE MECHANISM HAVING A DISC AND A CALIPER AND A SHOE AND A PRIMARY BRAKE ACTUATOR. A SELF ADJUSTING SECONDARY BRAKE ACTUATOR COMPRISING: A PAIR OF CONCENTRICALLY THREADED ELEMENTS ROTATABLY SUPPORTED BY SAID CALIPER ONE OF WHICH IS ENGAGEABLE WITH SAID SHOE, FIRST MEANS ROTATING AND AXIALLY ADVANCING SAID ELEMENTS IN UNISON IN ONE DIRECTION TO APPLY SAID SHOE TO SAID DISC IN BRAKING RELATION AND ROTATING AND AXIALLY RETRACTING SAID ELEMENTS IN THE OTHER DIRECTION TO PERMIT RETRACTION OF SAID SHOE FROM SAID DISC, AND SECOND MEANS ACTUATED UPON A PREDETERMINED ROTATION OF SAID ELEMENTS IN SAID OTHER DIRECTION
Claim 2
Dependent Claim
103 words
IN A DISC BRAKE MECHANISM HAVING A DISC AND A CALIPER AND A SHOE AND A PRIMARY BRAKE ACTUATOR. A SELF ADJUSTING SECONDARY BRAKE ACTUATOR COMPRISING: A PAIR OF CONCENTRICALLY THREADED ELEMENTS ROTATABLY SUPPORTED BY SAID CALIPER ONE OF WHICH IS ENGAGEABLE WITH SAID SHOE, FIRST MEANS ROTATING AND AXIALLY ADVANCING SAID ELEMENTS IN UNISON IN ONE DIRECTION TO APPLY SAID SHOE TO SAID DISC IN BRAKING RELATION AND ROTATING AND AXIALLY RETRACTING SAID ELEMENTS IN THE OTHER DIRECTION TO PERMIT RETRACTION OF SAID SHOE FROM SAID DISC, AND SECOND MEANS ACTUATED UPON A PREDETERMINED ROTATION OF SAID ELEMENTS IN SAID OTHER DIRECTION
References Cited (Backward Citations)
US3155194A
Cited
US3243016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |