Patent US3148749A successfully refreshed from Google Patents.
US3148749A
Expired / Lapsed
US
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Rotor brake
Assignee: Amsted Industries Inc
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Filing: 1962-08-03
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Granted: 1964-09-15
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Expires: 1982-08-03
Abstract
No abstract record available.
Inventors
- 👤 Eldon W Bushnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245; B; B61; B61H; B61H15/00; B61H15/0007; B61H15/0014; B61H15/0028; B61H5/00; F16D2125/00; F16D2125/18; F16D2125/58; F16D2125/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A ROTOR BRAKE ARRANGEMENT, A BRAKE FRAME, A PAIR OF BRAKE LEVERS PIVOTALLY MOUNTED INTERMEDIATE THEIR ENDS ON SAID FRAME, BRAKE HEAD-SHOE ASSEMBLIES ON THE INNER ENDS OF SAID LEVERS ADAPTED TO FRICTIONALLY ENGAGE A ROTOR THEREBETWEEN, A BRAKE OPERATING ARM PIVOTALLY MOUNTED AT ITS LOWER END ON SAID FRAME BETWEEN SAID LEVERS, A WEDGE PROVIDED ON SAID ARM ENGAGED BETWEEN THE OUTER ENDS OF SAID LEVERS, A TENSION SPRING INTERCONNECTING THE OUTER ENDS OF SAID LEVERS, RESILIENT MEANS BIASING SAID ARM TOWARD ITS BRAKE RELEASE POSITION, AND MEANS PROVIDED ON SAID ARM OPERABLE AUTOMATICALLY RESPONSIVE TO PIVOTAL MOVEMENT OF SAID ARM TOWARD ITS BRAKE RELEASE POSITION TO ADJUST THE POSITION OF SAID WEDGE AND SAID LEVERS, SAID ADJUSTING MEANS COMPRISING A DRIVING GEAR AND A DRIVEN GEAR JOURNALED ON SAID ARM, SAID DRIVEN GEAR HAVING A THREADED BORE, AND AN ADJUSTMENT SCREW MOUNTED IN SAID BORE AND CONNECTED TO SAID WEDGE.
Claim 2
Dependent Claim
153 words
IN A ROTOR BRAKE ARRANGEMENT, A BRAKE FRAME, A PAIR OF BRAKE LEVERS PIVOTALLY MOUNTED INTERMEDIATE THEIR ENDS ON SAID FRAME, BRAKE HEAD-SHOE ASSEMBLIES ON THE INNER ENDS OF SAID LEVERS ADAPTED TO FRICTIONALLY ENGAGE A ROTOR THEREBETWEEN, A BRAKE OPERATING ARM PIVOTALLY MOUNTED AT ITS LOWER END ON SAID FRAME BETWEEN SAID LEVERS, A WEDGE PROVIDED ON SAID ARM ENGAGED BETWEEN THE OUTER ENDS OF SAID LEVERS, A TENSION SPRING INTERCONNECTING THE OUTER ENDS OF SAID LEVERS, RESILIENT MEANS BIASING SAID ARM TOWARD ITS BRAKE RELEASE POSITION, AND MEANS PROVIDED ON SAID ARM OPERABLE AUTOMATICALLY RESPONSIVE TO PIVOTAL MOVEMENT OF SAID ARM TOWARD ITS BRAKE RELEASE POSITION TO ADJUST THE POSITION OF SAID WEDGE AND SAID LEVERS, SAID ADJUSTING MEANS COMPRISING A DRIVING GEAR AND A DRIVEN GEAR JOURNALED ON SAID ARM, SAID DRIVEN GEAR HAVING A THREADED BORE, AND AN ADJUSTMENT SCREW MOUNTED IN SAID BORE AND CONNECTED TO SAID WEDGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |