US3152664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hold-down device for brake shoes
Assignee: ZF Active Safety US Inc
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Filing: 1963-01-18
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Granted: 1964-10-13
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Expires: 1983-01-18
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:05
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/04; F16D65/08; F16D65/09; F16D65/091
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A BRAKE MECHANISM COMPRISING A BACKING PLATE, A BRAKE SHOE SEATED AGAINST SAID BACKING PLATE FOR MOVEMENT RELATIVE THERETO, SAID SHOE HAVING A RADIAL WEB SPACED FROM THE BACKING PLATE, THAT IMPROVEMENT WHICH COMPRISES A HOLD-DOWN DEVICE COMPRISING, A ROD PIVOTALLY CONNECTED TO SAID BACKING PLATE FOR ROCKING MOVEMENT RELATIVE THERETO, AND A SUBSTANTIALLY U-SHAPED SPRING DEVICE HAVING ITS ENDS BIASED TOGETHER AND HAVING ONE END SLIDABLY ENGAGING THE SIDE OF THE WEB REMOTE FROM THE BACKING PLATE AND THE OTHER END CONNECTED TO THE FREE END OF SAID ROD TO RESILIENTLY UREGE SAID BRAKE SHOE TOWARD SAID BACKING PLATE.
Claim 2
Dependent Claim
101 words
IN A BRAKE MECHANISM COMPRISING A BACKING PLATE, A BRAKE SHOE SEATED AGAINST SAID BACKING PLATE FOR MOVEMENT RELATIVE THERETO, SAID SHOE HAVING A RADIAL WEB SPACED FROM THE BACKING PLATE, THAT IMPROVEMENT WHICH COMPRISES A HOLD-DOWN DEVICE COMPRISING, A ROD PIVOTALLY CONNECTED TO SAID BACKING PLATE FOR ROCKING MOVEMENT RELATIVE THERETO, AND A SUBSTANTIALLY U-SHAPED SPRING DEVICE HAVING ITS ENDS BIASED TOGETHER AND HAVING ONE END SLIDABLY ENGAGING THE SIDE OF THE WEB REMOTE FROM THE BACKING PLATE AND THE OTHER END CONNECTED TO THE FREE END OF SAID ROD TO RESILIENTLY UREGE SAID BRAKE SHOE TOWARD SAID BACKING PLATE.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |