US3285370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk brakes
Assignee: ZF Active Safety US Inc
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Filing: 1964-10-28
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Granted: 1966-11-15
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Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:35
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D55/00; F16D55/02; F16D55/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
IN A DISK BRAKE FOR WHEELS HAVING A BRAKE DISK ROTATABLE WITH THE WHEEL, A CALIPER-LIKE MEMBER SECURED TO A STATIONARY PART OF THE WHEEL AXLE, A BRAKE SHOE CARRIED BY SAID CALIPER-LIKE MEMBER, AND A SPRING-BIASED BRAKE ACTUATING PISTON SUPPORTED BY SAID CALIPER-LIKE MEMBER, THAT IMPROVEMENT WHICH COMPRISES, A BRAKE SHOE POSITIONING ARM CARRIED BY SAID CALIPER-LIKE MEMBER AND ABUTTABLE BY BUT NOT POSITIVELY FIXED TO SAID BRAKE SHOE TO PROVIDE AN ABUTMENT AGAINST WHICH SAID BRAKE SHOE IS NORMALLY HELD BY SAID PISTON, SAID ARM HAVING AN ADJUSTABLE CONNECTION WITH SAID CALIPER-LIKE MEMBER WHEREBY EXCESSIVE MOVEMENT OF SAID BRAKE SHOE DUE TO WEAR ON THE BRAKE LINING WILL ADJUST SAID ARM TO A NEW POSITION TO MAINTAIN A DESIRED NORMAL POSITION OF THE BRAKE SHOE WITH RESPECT TO SAID BRAKE DISK WHEN THE BRAKES ARE RELEASED AND SAID ARM WILL ABSORB AT LEAST A PART OF THE SPRING BIASED FORCE OF SAID PISTON IN THE RELEASED CONDITION OF THE BRAKES.
Claim 2
Dependent Claim
162 words
IN A DISK BRAKE FOR WHEELS HAVING A BRAKE DISK ROTATABLE WITH THE WHEEL, A CALIPER-LIKE MEMBER SECURED TO A STATIONARY PART OF THE WHEEL AXLE, A BRAKE SHOE CARRIED BY SAID CALIPER-LIKE MEMBER, AND A SPRING-BIASED BRAKE ACTUATING PISTON SUPPORTED BY SAID CALIPER-LIKE MEMBER, THAT IMPROVEMENT WHICH COMPRISES, A BRAKE SHOE POSITIONING ARM CARRIED BY SAID CALIPER-LIKE MEMBER AND ABUTTABLE BY BUT NOT POSITIVELY FIXED TO SAID BRAKE SHOE TO PROVIDE AN ABUTMENT AGAINST WHICH SAID BRAKE SHOE IS NORMALLY HELD BY SAID PISTON, SAID ARM HAVING AN ADJUSTABLE CONNECTION WITH SAID CALIPER-LIKE MEMBER WHEREBY EXCESSIVE MOVEMENT OF SAID BRAKE SHOE DUE TO WEAR ON THE BRAKE LINING WILL ADJUST SAID ARM TO A NEW POSITION TO MAINTAIN A DESIRED NORMAL POSITION OF THE BRAKE SHOE WITH RESPECT TO SAID BRAKE DISK WHEN THE BRAKES ARE RELEASED AND SAID ARM WILL ABSORB AT LEAST A PART OF THE SPRING BIASED FORCE OF SAID PISTON IN THE RELEASED CONDITION OF THE BRAKES.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |