US3253686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clutch-brake motors
Assignee: Singer Co
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Filing: 1964-05-20
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Granted: 1966-05-31
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Walter J Scheuerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/112; F; F16; F16D; F16D67/00; F16D67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN ELECTRIC CLUTCH-BRAKE MOTOR HAVING A HOLLOW CASING, A STATOR SECURED IN SAID CASING, A TUBULAR ROTORSHAFT JOURNALED AT BOTH ENDS IN SAID CASING, A ROTOR SECURED TO SAID ROTOR-SHAFT AND HAVING A DRIVING CLUTCH PORTION, BEARING SUPPORTED ON THE INTERIOR OF SAID ROTORSHAFT ADJACENT TO SAID DRIVING CLUTCH A PORTION, A DRIVEN SHAFT EXTENDING THROUGH SAID ROTOR-SHAFT AND HAVING ONE END JOURNALED IN SAID CASING AND THE OTHER END JOURNALED FOR SUPPORT SOLELY IN SAID ROTOR-SHAFT SUPPORTED BEARING, A DRIVEN CLUTCH ELEMENT SECURED TO SAID DRIVEN SHAFT, A CONTROL BEARING SUPPORTED SOLELY ON THE END OF SAID DRIVEN SHAFT ADJACENT TO THE DRIVEN CLUTCH ELEMENT, A BEARING CUP ENBRACING THE DRIVEN SHAFT SUPPORTED BEARING AND EXTERNAL MEANS FOR MOVING SAID BEARING CUP TO IMPART ENDWISE MOTION TO THE DRIVEN SHAFT TO CAUSE THE DRIVEN CLUTCH ELEMENT TO DRIVINGLY ENGAGE THE DRIVING CLUTCH PORTION OF THE ROTOR.
Claim 2
Dependent Claim
147 words
AN ELECTRIC CLUTCH-BRAKE MOTOR HAVING A HOLLOW CASING, A STATOR SECURED IN SAID CASING, A TUBULAR ROTORSHAFT JOURNALED AT BOTH ENDS IN SAID CASING, A ROTOR SECURED TO SAID ROTOR-SHAFT AND HAVING A DRIVING CLUTCH PORTION, BEARING SUPPORTED ON THE INTERIOR OF SAID ROTORSHAFT ADJACENT TO SAID DRIVING CLUTCH A PORTION, A DRIVEN SHAFT EXTENDING THROUGH SAID ROTOR-SHAFT AND HAVING ONE END JOURNALED IN SAID CASING AND THE OTHER END JOURNALED FOR SUPPORT SOLELY IN SAID ROTOR-SHAFT SUPPORTED BEARING, A DRIVEN CLUTCH ELEMENT SECURED TO SAID DRIVEN SHAFT, A CONTROL BEARING SUPPORTED SOLELY ON THE END OF SAID DRIVEN SHAFT ADJACENT TO THE DRIVEN CLUTCH ELEMENT, A BEARING CUP ENBRACING THE DRIVEN SHAFT SUPPORTED BEARING AND EXTERNAL MEANS FOR MOVING SAID BEARING CUP TO IMPART ENDWISE MOTION TO THE DRIVEN SHAFT TO CAUSE THE DRIVEN CLUTCH ELEMENT TO DRIVINGLY ENGAGE THE DRIVING CLUTCH PORTION OF THE ROTOR.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |