Patent US3334708A successfully refreshed from Google Patents.
US3334708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot-type disk brake
Assignee: ZF Active Safety US Inc
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Filing: 1966-01-05
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Granted: 1967-08-08
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Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:05
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D2055/0004; F16D2055/0041; F16D2055/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A DISK BRAKE FOR A WHEEL SUPPORTED FOR ROTATION WITH RESPECT TO A STATIONARY MEMBER COMPRISING A BRAKE DISK FIXED FOR ROTATION WITH THE WHEEL, A CALIPER STRADDLING AT LEAST A PORTION OF THE PERIPHERY OF SAID BRAKE DISK, A PAIR OF OPPOSED BRAKE SHOES ASSOCIATED WITH SAID CALIPER AND ADAPTED TO ENGAGE OPPOSITELY FACING RADIALLY EXTENDING SURFACES OF SAID BRAKE DISK, A BRAKE ACTUATING PISTON CARRIED BY SAID CALIPER FOR ACTUATING ONE OF SAID BRAKE SHOES DIRECTLY AND FOR ACTUATING THE OTHER BRAKE SHOE THROUGH SAID CALIPER, A SUPPORTING MEMBER FOR SUPPORTING SAID CALIPER AND FOR PROVIDING A TORQUE REACTION THEREFOR, SAID SUPPORTING MEMBER HAVING A FIRST PART FIXED AGAINST ROTATION RELATIVE TO SAID STATIONARY MEMBER AND A SECOND PART JUXTAPOSED TO SAID CALIPER, A PAIR OF PARALLEL OFFSET PORTIONS EXTENDING IN CANTILEVER FASHION FROM SAID SECOND PART AND SUBSTANTIALLY PARALLEL TO ONE OF SAID DISK BRAKE SURFACES, AND MEANS FOR AFFIXING SAID OFFSET PORTIONS TO SAID CALIPER FOR CANTILEVER DEFLECTION OF SAID OFFSET PORTIONS UPON ACTUATING OF SAID BRAKE SHOES.
Claim 2
Dependent Claim
172 words
A DISK BRAKE FOR A WHEEL SUPPORTED FOR ROTATION WITH RESPECT TO A STATIONARY MEMBER COMPRISING A BRAKE DISK FIXED FOR ROTATION WITH THE WHEEL, A CALIPER STRADDLING AT LEAST A PORTION OF THE PERIPHERY OF SAID BRAKE DISK, A PAIR OF OPPOSED BRAKE SHOES ASSOCIATED WITH SAID CALIPER AND ADAPTED TO ENGAGE OPPOSITELY FACING RADIALLY EXTENDING SURFACES OF SAID BRAKE DISK, A BRAKE ACTUATING PISTON CARRIED BY SAID CALIPER FOR ACTUATING ONE OF SAID BRAKE SHOES DIRECTLY AND FOR ACTUATING THE OTHER BRAKE SHOE THROUGH SAID CALIPER, A SUPPORTING MEMBER FOR SUPPORTING SAID CALIPER AND FOR PROVIDING A TORQUE REACTION THEREFOR, SAID SUPPORTING MEMBER HAVING A FIRST PART FIXED AGAINST ROTATION RELATIVE TO SAID STATIONARY MEMBER AND A SECOND PART JUXTAPOSED TO SAID CALIPER, A PAIR OF PARALLEL OFFSET PORTIONS EXTENDING IN CANTILEVER FASHION FROM SAID SECOND PART AND SUBSTANTIALLY PARALLEL TO ONE OF SAID DISK BRAKE SURFACES, AND MEANS FOR AFFIXING SAID OFFSET PORTIONS TO SAID CALIPER FOR CANTILEVER DEFLECTION OF SAID OFFSET PORTIONS UPON ACTUATING OF SAID BRAKE SHOES.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |