US3146861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic adjusting device
Assignee: Dunlop Rubber Co Ltd
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Filing: 1961-12-05
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Granted: 1964-09-01
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Hodkinson Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:17
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D2125/00; F16D2125/18; F16D2125/58; F16D2125/64; F16D2125/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
AN AUTOMATIC BRAKE ADJUSTING DEVICE COMPRISING TWO MEMBERS HAVING CO-AXIALLY ALIGNED CYLINDRICAL EXTERNAL SURFACES OF EQUAL DIAMETER THREADED WITH THREADS OF IDENTICAL PITCH, EACH SAID MEMBER HAVING A PROJECTION EXTENDING IN OVERLAPPING RELATION TO THE PROJECTION OF THE OTHER MEMBER, THE PROJECTION OF ONE MEMBER BEING SEMICIRCULAR IN CROSS SECTION AND THE OTHER HAVING A MINOR SECTOR CROSS SECTION, AND A NUT ENGAGING THE THREADS OF BOTH MEMBERS WHEN THE PROJECTIONS ON THE LATTER LIE ALONGSIDE EACH OTHER, WHEREIN THE THREADS ON BOTH MEMBERS ARE IN ALIGNMENT WHEN THE DIAMETRAL SURFACE OF ONE PROJECTION IS IN ABUTMENT WITH ONE RADIAL SURFACE OF THE OTHER PROJECTION ALLOWING THE NUT TO ROTATE RELATIVE TO SAID MEMBERS IN ONE DIRECTION AND WHEREIN ON MOVEMENT OF THE NUT IN THE OPPOSITE DIRECTION THE THREADS ON BOTH MEMBERS MOVE OUT OF ALIGNMENT AND EVENTUALLY JAM THE NUT ON BOTH MEMBERS SO THAT ALL THREE ROTATE TOGETHER.
Claim 2
Dependent Claim
151 words
AN AUTOMATIC BRAKE ADJUSTING DEVICE COMPRISING TWO MEMBERS HAVING CO-AXIALLY ALIGNED CYLINDRICAL EXTERNAL SURFACES OF EQUAL DIAMETER THREADED WITH THREADS OF IDENTICAL PITCH, EACH SAID MEMBER HAVING A PROJECTION EXTENDING IN OVERLAPPING RELATION TO THE PROJECTION OF THE OTHER MEMBER, THE PROJECTION OF ONE MEMBER BEING SEMICIRCULAR IN CROSS SECTION AND THE OTHER HAVING A MINOR SECTOR CROSS SECTION, AND A NUT ENGAGING THE THREADS OF BOTH MEMBERS WHEN THE PROJECTIONS ON THE LATTER LIE ALONGSIDE EACH OTHER, WHEREIN THE THREADS ON BOTH MEMBERS ARE IN ALIGNMENT WHEN THE DIAMETRAL SURFACE OF ONE PROJECTION IS IN ABUTMENT WITH ONE RADIAL SURFACE OF THE OTHER PROJECTION ALLOWING THE NUT TO ROTATE RELATIVE TO SAID MEMBERS IN ONE DIRECTION AND WHEREIN ON MOVEMENT OF THE NUT IN THE OPPOSITE DIRECTION THE THREADS ON BOTH MEMBERS MOVE OUT OF ALIGNMENT AND EVENTUALLY JAM THE NUT ON BOTH MEMBERS SO THAT ALL THREE ROTATE TOGETHER.
References Cited (Backward Citations)
US1446702A
Cited
GB203019A
Cited
US2276206A
Cited
US2867295A
Cited
GB747974A
Cited
GB813316A
Cited
FR1241774A
Cited
FR1246519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |