US3084316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunnel diode drive device for electric watches
Assignee: United States Time Corp
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Filing: 1961-10-03
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Granted: 1963-04-02
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Zemla Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:03
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04C3/069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN A WRIST WATCH, HAVING A BALANCE WHEEL MOUNTED FOR OSCILLATORY MOVEMENT AND AN ASSOCIATED HAIR SPRING, THE COMBINATION OF A COIL ON SAID WHEEL COMPRISING TWO SPACED AND SUBSTANTIALLY RADIAL ARMS INTERCONNECTED AT THEIR INNER AND OUTER ENDS TO COMPLETE A CLOSED LOOP EXCEPT AT ITS TWO TERMINALS, A PAIR OF MAGNETS PROVIDING TWO PARALLEL FIELDS OF OPPOSITE POLARITY NORMAL TO AND INTERSECTING THE PATH OF SAID COIL ARMS AND SPACED APART BY SUBSTANTIALLY THE SAME DISTANCE AS SAID ARMS, AND A TUNNEL DIODE AND SOURCE OF UNIDIRECTIONAL CURRENT IN SERIES WITH SAID COIL AND EACH OTHER, THE SAID SOURCE NORMALLY BIASING SAID DIODE FOR OPERATION ABOUT THE TROUGH POINT OF ITS CHARACTERISTIC CURVE, AND SAID COIL AND SAID FIELDS BEING SO RELATED THAT A PULSE INDUCED IN THE COIL BY MOVEMENT OF ITS ARMS INTO SAID FIELDS IN ONE DIRECTION DECREASES THE VOLTAGE ACROSS SAID DIODE, WHEREBY THE CURRENT FLOWING IN SAID COIL FROM SAID SOURCE IS INCREASED TO GENERATE TWO SIMULTANEOUS UNIDIRECTIONAL DRIVING FORCES ON SAID COIL ARMS TO MOVE IT IN THE DIRECTION OF SAID ENTRANCE MOVEMENT.
Claim 2
Dependent Claim
181 words
IN A WRIST WATCH, HAVING A BALANCE WHEEL MOUNTED FOR OSCILLATORY MOVEMENT AND AN ASSOCIATED HAIR SPRING, THE COMBINATION OF A COIL ON SAID WHEEL COMPRISING TWO SPACED AND SUBSTANTIALLY RADIAL ARMS INTERCONNECTED AT THEIR INNER AND OUTER ENDS TO COMPLETE A CLOSED LOOP EXCEPT AT ITS TWO TERMINALS, A PAIR OF MAGNETS PROVIDING TWO PARALLEL FIELDS OF OPPOSITE POLARITY NORMAL TO AND INTERSECTING THE PATH OF SAID COIL ARMS AND SPACED APART BY SUBSTANTIALLY THE SAME DISTANCE AS SAID ARMS, AND A TUNNEL DIODE AND SOURCE OF UNIDIRECTIONAL CURRENT IN SERIES WITH SAID COIL AND EACH OTHER, THE SAID SOURCE NORMALLY BIASING SAID DIODE FOR OPERATION ABOUT THE TROUGH POINT OF ITS CHARACTERISTIC CURVE, AND SAID COIL AND SAID FIELDS BEING SO RELATED THAT A PULSE INDUCED IN THE COIL BY MOVEMENT OF ITS ARMS INTO SAID FIELDS IN ONE DIRECTION DECREASES THE VOLTAGE ACROSS SAID DIODE, WHEREBY THE CURRENT FLOWING IN SAID COIL FROM SAID SOURCE IS INCREASED TO GENERATE TWO SIMULTANEOUS UNIDIRECTIONAL DRIVING FORCES ON SAID COIL ARMS TO MOVE IT IN THE DIRECTION OF SAID ENTRANCE MOVEMENT.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |