Patent US3331472A successfully refreshed from Google Patents.
US3331472A
Expired / Lapsed
US
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Adjusting means for disk brake
Assignee: ZF Active Safety US Inc
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Filing: 1965-12-16
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Granted: 1967-07-18
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Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:31
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/22; F16D2125/26; F16D2125/58; F16D2125/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A DISK BRAKE FOR A WHEEL, A BRAKE DISK SECURED TO SAID WHEEL FOR ROTATION THEREWITH, A CALIPER STRADDLING AT LEAST A PORTION OF THE PERIPHERY OF SAID BRAKE DISK, A PAIR OF OPPOSED BRAKE SHOES, A FIRST PISTON CARRIED BY SAID CALIPER FOR ACTUATING SAID BRAKE SHOES, AN EXTENSIBLE ASSEMBLY HAVING AN ADJUSTABLE PART ADAPTED TO ENGAGE SAID PISTON AND HAVING A SECOND PISTION SLIDABLY SUPPORTED IN SAID CALIPER, SAID SECOND PISTON AND SAID ADJUSTABLE PART BEING THREADABLY CONNECTED, SAID PISTONS BEING RELATIVELY MOVABLE APART IN RESPONSE TO FLUID PRESSURE, AND MEANS CARRIED BY SAID FIRST PISTON OPERABLE UPON SAID RELATIVE MOVEMENT OF SAID PISTONS TO ROTATE SAID ADJUSTABLE PART RELATIVE TO SAID SECOND PISTON AND THEREBY ELONGATE SAID EXTENSIBLE MEMBER UPON THE HYDRAULIC APPLICATION OF SAID BRAKE.
Claim 2
Dependent Claim
130 words
IN A DISK BRAKE FOR A WHEEL, A BRAKE DISK SECURED TO SAID WHEEL FOR ROTATION THEREWITH, A CALIPER STRADDLING AT LEAST A PORTION OF THE PERIPHERY OF SAID BRAKE DISK, A PAIR OF OPPOSED BRAKE SHOES, A FIRST PISTON CARRIED BY SAID CALIPER FOR ACTUATING SAID BRAKE SHOES, AN EXTENSIBLE ASSEMBLY HAVING AN ADJUSTABLE PART ADAPTED TO ENGAGE SAID PISTON AND HAVING A SECOND PISTION SLIDABLY SUPPORTED IN SAID CALIPER, SAID SECOND PISTON AND SAID ADJUSTABLE PART BEING THREADABLY CONNECTED, SAID PISTONS BEING RELATIVELY MOVABLE APART IN RESPONSE TO FLUID PRESSURE, AND MEANS CARRIED BY SAID FIRST PISTON OPERABLE UPON SAID RELATIVE MOVEMENT OF SAID PISTONS TO ROTATE SAID ADJUSTABLE PART RELATIVE TO SAID SECOND PISTON AND THEREBY ELONGATE SAID EXTENSIBLE MEMBER UPON THE HYDRAULIC APPLICATION OF SAID BRAKE.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |