Patent US3677893A successfully refreshed from Google Patents.
Patent US3206212A successfully refreshed from Google Patents.
US3206212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch for sound recorders
Assignee: Dictaphone Corp
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Filing: 1962-05-11
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Granted: 1965-09-14
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Expires: 1982-05-11
Abstract
No abstract record available.
Inventors
- 👤 John G Wallace
- 👤 Merle H Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:41
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/02; F16D11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A SOUND RECORDING AND REPRODUCING MACHING OF THE TYPE HAVING A MOVABLE RECORD, A PRIME MOVER AND A ROTATING ELEMENT DRIVEN FROM THE PRIME MOVER FOR MOVING THE RECORD, THE COMBINATION WITH THE ELEMENTS OF SUCH A MACHINE OF A STATIONARY FRAME, A CLUTCH FOR CONTROLLING OPERATION OF THE ROTATING ELEMENT COMPRISING A DRIVING ELEMENT CONNECTED TO THE PRIME MOVER, A DRIVEN ELEMENT CONNECTED TO THE ROTATING ELEMENT, A PAWL MOUNTED ON ONE OF THE ELEMENTS FOR MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE OTHER ELEMENT AND HAVING AN ARCUATE EDGE THEREBETWEEN, A CONTROL MEMBER MOUNTED ON THE STATIONARY FRAME FOR MOVEMENT PARALLEL TO THE AXIS OF ROTATION OF THE DRIVEN ELEMENT AT A LOCATION BETWEEN THE PAWL AND ELEMENT ITS ENGAGES FOR ENGAGING AND DISENGAGING THE ARCUATE EDGE OF THE PAWL, A SPRING TO YIELDAGLY MOVE THE CONTROL MEMBER INTO ENGAGEMENT WITH THE PAWL, AND AN ELECTRO-MAGNET FOR ACTUATING THE MEMBER TO A SECOND DISENGAGING POSITION AGAINST THE ACTION OF THE SPRING.
Claim 2
Dependent Claim
165 words
IN A SOUND RECORDING AND REPRODUCING MACHING OF THE TYPE HAVING A MOVABLE RECORD, A PRIME MOVER AND A ROTATING ELEMENT DRIVEN FROM THE PRIME MOVER FOR MOVING THE RECORD, THE COMBINATION WITH THE ELEMENTS OF SUCH A MACHINE OF A STATIONARY FRAME, A CLUTCH FOR CONTROLLING OPERATION OF THE ROTATING ELEMENT COMPRISING A DRIVING ELEMENT CONNECTED TO THE PRIME MOVER, A DRIVEN ELEMENT CONNECTED TO THE ROTATING ELEMENT, A PAWL MOUNTED ON ONE OF THE ELEMENTS FOR MOVEMENT INTO AND OUT OF ENGAGEMENT WITH THE OTHER ELEMENT AND HAVING AN ARCUATE EDGE THEREBETWEEN, A CONTROL MEMBER MOUNTED ON THE STATIONARY FRAME FOR MOVEMENT PARALLEL TO THE AXIS OF ROTATION OF THE DRIVEN ELEMENT AT A LOCATION BETWEEN THE PAWL AND ELEMENT ITS ENGAGES FOR ENGAGING AND DISENGAGING THE ARCUATE EDGE OF THE PAWL, A SPRING TO YIELDAGLY MOVE THE CONTROL MEMBER INTO ENGAGEMENT WITH THE PAWL, AND AN ELECTRO-MAGNET FOR ACTUATING THE MEMBER TO A SECOND DISENGAGING POSITION AGAINST THE ACTION OF THE SPRING.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |