Patent US3148751A successfully refreshed from Google Patents.
US3148751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting means for an electromagnetic brake assembly
Assignee: International Research and Development Co Ltd
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Filing: 1961-12-29
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Granted: 1964-09-15
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 William J White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:30
CPC Classifications
F; F16; F16D; F16D55/00; F16D2121/00; F16D2121/18; F16D2121/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN COMBINATION: AN ELECTRIC MOTOR HAVING A MOTOR HOUSING AND A DRIVE SHAFT EXTENDING THEREFROM; ELECTROMAGNETIC BRAKE MEANS INCLUDING: AN ANNULAR ARMATURE MEMBER RIGIDLY SECURED TO SAID DRIVE SHAFT FOR ROTATION THEREWITH, AND AN ANNULAR POLE STRUCTURE HAVING ENERGIZING MAGNET COIL MEANS ASSOCIATED THEREWITH FOR ENERGIZATION THEREOF, SAID ANNULAR POLE STRUCTURE BEING SPACED FROM THE SAID ARMATURE MEMBER; A FIRST PLATE SECURED TO SAID MOTOR HOUSING AND EXTENDING OUTWARDLY THEREFROM; A SECOND PLATE SECURED TO THE SAID ANNULAR POLE STRUCTURE AND EXTENDING OUTWARDLY THEREFROM; AND EXTENSIBLE SUPPORT MEANS EXTENDING BETWEEN SAID FIRST PLATE AND SAID SECOND PLATE FOR MAINTAINING THE SAID ANNULAR POLE STRUCTURE IN SPACED SUBSTANTIALLY PARALLEL RELATION WITH SAID ANNULAR ARMATURE PLATE WHEREBY SAID ANNULAR POLE STRUCTURE IS SHIFTABLE INTO BRAKING RELATION WITH THE SAID ANNULAR ARMATURE MEMBER IN RESPONSE TO THE ENERGIZATION OF SAID COIL MEANS.
Claim 2
Dependent Claim
139 words
IN COMBINATION: AN ELECTRIC MOTOR HAVING A MOTOR HOUSING AND A DRIVE SHAFT EXTENDING THEREFROM; ELECTROMAGNETIC BRAKE MEANS INCLUDING: AN ANNULAR ARMATURE MEMBER RIGIDLY SECURED TO SAID DRIVE SHAFT FOR ROTATION THEREWITH, AND AN ANNULAR POLE STRUCTURE HAVING ENERGIZING MAGNET COIL MEANS ASSOCIATED THEREWITH FOR ENERGIZATION THEREOF, SAID ANNULAR POLE STRUCTURE BEING SPACED FROM THE SAID ARMATURE MEMBER; A FIRST PLATE SECURED TO SAID MOTOR HOUSING AND EXTENDING OUTWARDLY THEREFROM; A SECOND PLATE SECURED TO THE SAID ANNULAR POLE STRUCTURE AND EXTENDING OUTWARDLY THEREFROM; AND EXTENSIBLE SUPPORT MEANS EXTENDING BETWEEN SAID FIRST PLATE AND SAID SECOND PLATE FOR MAINTAINING THE SAID ANNULAR POLE STRUCTURE IN SPACED SUBSTANTIALLY PARALLEL RELATION WITH SAID ANNULAR ARMATURE PLATE WHEREBY SAID ANNULAR POLE STRUCTURE IS SHIFTABLE INTO BRAKING RELATION WITH THE SAID ANNULAR ARMATURE MEMBER IN RESPONSE TO THE ENERGIZATION OF SAID COIL MEANS.
References Cited (Backward Citations)
FR547328A
Cited
US2549217A
Cited
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 |