Patent US3237730A successfully refreshed from Google Patents.
US3237730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic screw adjuster
Assignee: Girling Ltd
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Filing: 1963-12-16
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Granted: 1966-03-01
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Edwards Roy Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:41
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245; F16D2055/0004; F16D2055/005; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
MEANS FOR ADJUSTING FRICTION ELEMENTS OF A BRAKE COMPRISING COOPERATING SCREW AND NUT MEMBERS OPERATIVELY CONNECTED TO SAID ELEMENTS, TEETH ON ONE OF SAID MEMBERS, A PAWL COOPERATING WITH SAID TEETH, AND MEANS FOR MOVING SAID PAWL TO EFFECT STEP-BY-STEP RELATIVE MOVEMENT OF SAID ONE MEMBER WITH RESPECT TO THE OTHER UPON WEAR OF SAID FRICTION ELEMENTS, SAID MEANS COMPRISING AN ELONGATED FLEXIBLE AND EXTENSIBLE ASSEMBLY INCLUDING FIRST AND SECOND PARTS, ONE OF SAID PARTS BEING A FLEXIBLE INEXTENSIBLE CABLE AND THE OTHER OF SAID PARTS BEING A YIELDING LINK, MEANS CONNECTING SAID PARTS TOGETHER AT ONE END OF EACH, THE OPPOSITE END OF ONE OF SAID PARTS BEING OPERATIVELY CONNECTED TO SAID PAWL, AN ANCHORAGE CONNECTED TO THE OPPOSITE END OF THE OTHER OF SAID PARTS, AN ABUTMENT ENGAGING SAID CABLE INTERMEDIATE THE ENDS THEREOF, MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID ABUTMENT AND SAID ANCHORAGE UPON APPLICATION OF THE BRAKE, SAID ABUTMENT BEING CONSTRUCTED AND ARRANGED THAT SAID CABLE IS TENSIONED OVER SAID ABUTMENT UPON APPLICATION OF SAID BRAKE TO EFFECT MOVEMENT OF SAID PAWL SO LONG AS THE TENSION IN SAID CABLE IS LESS THAN THE FORCE WHICH THE RESILIENTLY YIELDING LINK CAN TRANSMIT WITHOUT YIELDING.
Claim 2
Dependent Claim
199 words
MEANS FOR ADJUSTING FRICTION ELEMENTS OF A BRAKE COMPRISING COOPERATING SCREW AND NUT MEMBERS OPERATIVELY CONNECTED TO SAID ELEMENTS, TEETH ON ONE OF SAID MEMBERS, A PAWL COOPERATING WITH SAID TEETH, AND MEANS FOR MOVING SAID PAWL TO EFFECT STEP-BY-STEP RELATIVE MOVEMENT OF SAID ONE MEMBER WITH RESPECT TO THE OTHER UPON WEAR OF SAID FRICTION ELEMENTS, SAID MEANS COMPRISING AN ELONGATED FLEXIBLE AND EXTENSIBLE ASSEMBLY INCLUDING FIRST AND SECOND PARTS, ONE OF SAID PARTS BEING A FLEXIBLE INEXTENSIBLE CABLE AND THE OTHER OF SAID PARTS BEING A YIELDING LINK, MEANS CONNECTING SAID PARTS TOGETHER AT ONE END OF EACH, THE OPPOSITE END OF ONE OF SAID PARTS BEING OPERATIVELY CONNECTED TO SAID PAWL, AN ANCHORAGE CONNECTED TO THE OPPOSITE END OF THE OTHER OF SAID PARTS, AN ABUTMENT ENGAGING SAID CABLE INTERMEDIATE THE ENDS THEREOF, MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID ABUTMENT AND SAID ANCHORAGE UPON APPLICATION OF THE BRAKE, SAID ABUTMENT BEING CONSTRUCTED AND ARRANGED THAT SAID CABLE IS TENSIONED OVER SAID ABUTMENT UPON APPLICATION OF SAID BRAKE TO EFFECT MOVEMENT OF SAID PAWL SO LONG AS THE TENSION IN SAID CABLE IS LESS THAN THE FORCE WHICH THE RESILIENTLY YIELDING LINK CAN TRANSMIT WITHOUT YIELDING.
References Cited (Backward Citations)
GB612360A
Cited
FR1252554A
Cited
US3048242A
Cited
US3077246A
Cited
US3129789A
Cited
US3050157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |