Patent US3618310A successfully refreshed from Google Patents.
US3618310A
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US
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Clock timer with sleep switch
Assignee: General Electric Co
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Filing: 1970-04-15
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Granted: 1971-11-09
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Expires: 1990-04-15
Abstract
Abstract A "SLEEP SWITCH" MECHGANISM FOR A CLOCK TIMER WHEREIN A UNIQUE FRICTION CLUTCH MECHANISM IS POSITIONED BETWEEN A CONTINUOUSLY ROTATED GEAR OF THE CLOCK TIMER AND A MANUALLY MOVABLE SECTOR GEAR OF THE CLOCK TIMER. THE SLEEP FRICTION CLUTCH MECHANISM COMPRISES TWO PARTS, A HOLLOW PINION HAVING INTERNALLY MOLDED FLEXIBLE TEETH, AND A CONTINUOUSLY ROTATED HEXAGONAL SHAFT UPON WHICH THE HOLLOW PINION RIDES SO THAT A SLIDING FRICTION CLUTCH RESULTS FROM THE INTERACTION BETWEEN THE INTERNAL TEETH OF THE PINION AND THE HEXAGONAL SHAFT WHEN THE SECTOR GEAR IS MANUALLY MOVED INTO ENGAGEMENT WITH THE PINION GEAR.
Inventors
- 👤 Charles A Balchunas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:45
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/002; G; G04; G04C; G04C23/00; G04C23/38; G04C23/42; G04C23/46; G04F; G04F3/00; G04F3/06; G04F3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |