US3276199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically spring wound clock
Assignee: Jeco Corp
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Filing: 1964-04-22
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Granted: 1966-10-04
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ishikawa Kazuo
- 👤 Umezawa Toshio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:39
CPC Classifications
G; G04; G04C; G04C1/00; G04C1/04; G04C1/06; G04C1/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A DRIVE SYSTEM FOR AN ELECTRIC CLOCK COMPRISING THE COMBINATION OF AN ELECTRIC MOTOR AND SWITCH MEANS FOR TURNING THE MOTOR ON AND OFF,A SOURCE OF D.C. ELECTRICAL POWER FOR SAID MOTOR, TIME INDICATING MECHANISM, A MAIN SPRING OPERATIVELY CONNECTED TO SAID TIE INDICATING MECHANISM FOR DRIVING THE SAME, INPUT MEANS OPERATIVELY CONNECTED TO SAID MAIN SPRING AND SAID MOTOR FOR PERIODICALLY WINDING THE SPRING, OUTPUT MEANS OPERATIVELY CONNECTED TO SAID MAIN SPRING FOR MOVEMENT RESPONSIVE TO THE UNWINDING OF SAID SPRING, A DOUBLE CAM HAVING A FIRST SET OF CAM SURFACES COOPERATING WITH SAID OUTPUT MEANS AND A FIRST ONE OF SAID CONTACT SPRINGS FOR CAMMING SAID FIRST CONTACT SPRING AWAY FROM THE OTHER CONTACT SPRING DURING A MAJOR PORTION OF EACH REVOLUTION OF THE OUTPUT MEANS AND THEN RELEASING THE FIRST CONTACT SPRING AT THE END OF EACH REVOLUTION, AND A SECOND SET OF CAM SURFACES COOPERATING WITH SAID INPUT MEANS AND THE SECOND CONTACT SPRING FOR CAMMING THE SECOND SPRING TOWARD THE FIRST SPRING UPON RELEASE OF SAID FIRST SPRING, MAINTAINING THE SECOND SPRING IN SUCH POSITION DURING A MAJOR PORTION OF EACH REVOLUTION OF THE INPUT MEANS AND THEN RELEASING THE SECOND SPRING AT THE END OF EACH REVOLUTION.
Claim 2
Dependent Claim
203 words
A DRIVE SYSTEM FOR AN ELECTRIC CLOCK COMPRISING THE COMBINATION OF AN ELECTRIC MOTOR AND SWITCH MEANS FOR TURNING THE MOTOR ON AND OFF,A SOURCE OF D.C. ELECTRICAL POWER FOR SAID MOTOR, TIME INDICATING MECHANISM, A MAIN SPRING OPERATIVELY CONNECTED TO SAID TIE INDICATING MECHANISM FOR DRIVING THE SAME, INPUT MEANS OPERATIVELY CONNECTED TO SAID MAIN SPRING AND SAID MOTOR FOR PERIODICALLY WINDING THE SPRING, OUTPUT MEANS OPERATIVELY CONNECTED TO SAID MAIN SPRING FOR MOVEMENT RESPONSIVE TO THE UNWINDING OF SAID SPRING, A DOUBLE CAM HAVING A FIRST SET OF CAM SURFACES COOPERATING WITH SAID OUTPUT MEANS AND A FIRST ONE OF SAID CONTACT SPRINGS FOR CAMMING SAID FIRST CONTACT SPRING AWAY FROM THE OTHER CONTACT SPRING DURING A MAJOR PORTION OF EACH REVOLUTION OF THE OUTPUT MEANS AND THEN RELEASING THE FIRST CONTACT SPRING AT THE END OF EACH REVOLUTION, AND A SECOND SET OF CAM SURFACES COOPERATING WITH SAID INPUT MEANS AND THE SECOND CONTACT SPRING FOR CAMMING THE SECOND SPRING TOWARD THE FIRST SPRING UPON RELEASE OF SAID FIRST SPRING, MAINTAINING THE SECOND SPRING IN SUCH POSITION DURING A MAJOR PORTION OF EACH REVOLUTION OF THE INPUT MEANS AND THEN RELEASING THE SECOND SPRING AT THE END OF EACH REVOLUTION.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |