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US3332229A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric clock self-starter

Assignee: Hamilton Watch Co
•
Filing: 1964-05-11
•
Granted: 1967-07-25
•
Expires: 1984-05-11
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Abstract

No abstract record available.

Inventors

  • 👤 John L Klinck
  • 👤 John A Van Horn
  • 👤 Richard T Campbell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 20:42
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 215 words
A WATCH COMPRISING A GROUNDED PILLAR PLATE AND A BALANCE COCK, A BALANCE STAFF HAVING ONE END JOURNALED IN SAID PILLAR PLATE AND ITS OTHER END JOURNALED IN SAID BALANCE COCK, A BALANCE WHEEL ON SAID BALANCE STAFF. A HAIRSPRING ENGAGING SAID BALANCE STAFF FOR SUPPORTINF OSCILLATIONS OF SAID BALANCE WHEEL, A PIE-SHAPED DRIVE COIL CARRIED BY SAID BALANCE WHEEL, ONE END OF SAID COIL BEING ELECTRICALLY CONNECTED TO SAID BALANCE WHEEL, AT LEAST ONE PERMANENT MAGNET POSITIONED ADJACENT THE PATH OF MOVEMENT OF SAID DRIVE COIL WHEREBY THE FIELDS FROM SAID COIL AND MAGNET INTERACT TO IMPART A THRUST TO SAID COIL AND BALANCE WHEEL, MEANS ELECTRICALLY COUPLING SAID BALANCE STAFF TO SAID PILLAR PLATE, A BATTERY, MEANS COUPLING ONE SIDE OF SAID BATTERY TO SAID PILLAR PLATE, A ROLLER ON SAID BALANCE STAFF, AN INSULATED CONTACT CARRIED BY SAID ROLLER, MEANS ELECTRICALLY COUPLING SAID INSULATED CONTACT TO THE OTHER END OF SAID DRIVE COIL, A YIELDABLE CONTACT ENGAGEABLE BY SAID INSULATED CONTACT DURING OSCILLATION OF SAID BALANCE WHEEL TO COMPLETE A CIRCUIT FROM SAID OTHER END OF SAID DRIVE COIL TO THE OTHER SIDE OF SAID BATTERY, AND A STARTING CIRCUIT INCLUDING A CAPACITOR BYPASSING SAID CONTACTS AND COUPLING SAID OTHER END OF SAID DRIVE COIL TO SAID OTHER SIDE OF SAID BATTERY.

References Cited (Backward Citations)

US3124731A Cited
US2084657A Cited
US2711501A Cited
US2945168A Cited
US3156857A Cited
US3140376A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-07-24 1971-01-23 1971-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-07-24 1975-01-23 1975-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-07-24 1979-01-23 1979-07-25 $7700.00 Window Closed / Lapsed

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