Patent US3337013A successfully refreshed from Google Patents.
US3337013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetically controlled clutch and brake organization
Assignee: Stearns Electric Corp
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Filing: 1965-08-23
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Granted: 1967-08-22
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Wrensch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A CLUTCH AND BRAKE MECHANISM COMPRISING A COAXIAL ROTOR AND DRIVEN SHAFT, THE ROTOR BEING PROVIDED WITH MAGNETIC POLE MEANS AND A CLUTCH SURFACE, A STATIONARY ELECTROMAGNET CONSTITUTING MANS FOR ENERGIZING THE POLE MEANS OF THE ROTOR, AN ARMATURE POSITIONED TO BE ATTRACTED BY THE POLE MEANS INTO ENGAGEMENT WITH THE SAID CLUTCH SURFACE, A SPRING BIASING THE ARMATURE AWAY FROM SAID SURFACE, AND A RELATIVELY NON-ROTATABLE BRAKE ELEMENT NORMALLY ENGAGED BY THE ARMATURE SUBJECT TO THE BIAS OF SAID SPRING, THE ARMATURE HAVING SPLINED CONNECTION WITH THE DRIVEN SHAFT, THE DRIVEN SHAFT BEING PROVIDED WITH SPLINE MEANS UPON WHICH THE ARMATURE DISK IS MOUNTED AND WITH A SEAT FOR THE SPRING WHICH
Claim 2
Dependent Claim
113 words
A CLUTCH AND BRAKE MECHANISM COMPRISING A COAXIAL ROTOR AND DRIVEN SHAFT, THE ROTOR BEING PROVIDED WITH MAGNETIC POLE MEANS AND A CLUTCH SURFACE, A STATIONARY ELECTROMAGNET CONSTITUTING MANS FOR ENERGIZING THE POLE MEANS OF THE ROTOR, AN ARMATURE POSITIONED TO BE ATTRACTED BY THE POLE MEANS INTO ENGAGEMENT WITH THE SAID CLUTCH SURFACE, A SPRING BIASING THE ARMATURE AWAY FROM SAID SURFACE, AND A RELATIVELY NON-ROTATABLE BRAKE ELEMENT NORMALLY ENGAGED BY THE ARMATURE SUBJECT TO THE BIAS OF SAID SPRING, THE ARMATURE HAVING SPLINED CONNECTION WITH THE DRIVEN SHAFT, THE DRIVEN SHAFT BEING PROVIDED WITH SPLINE MEANS UPON WHICH THE ARMATURE DISK IS MOUNTED AND WITH A SEAT FOR THE SPRING WHICH
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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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |