US3186157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balance wheel assembly for an electric timepiece
Assignee: United States Time Corp
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Filing: 1962-07-25
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Granted: 1965-06-01
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Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Maxime A Favret
- 👤 Egger Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04C3/066; G04B; G04B17/00; G04B17/04; G04B17/06; G04B17/066; G04B31/00; G04C3/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A PORTABLE TIMEKEEPING APPARATUS, A BALANCE WHEEL ASSEMBLY COMPRISING A SWINGABLE BALANCE WHEEL AND SHAFT, A FIRST STATIONARY SUPPORT, A FLAT SPIRAL SPRING HAVING ONE OF ITS END ATTACHED TO THE WHEEL ASSEMBLY AND ITS OTHER END ATTACHED TO THE FIRST SUPPORT, THE FLAT SPIRAL SPRING BEING SUFFICIENTLY STRONG TO NORMALLY SUPPORT THE BALANCE WHEEL AGAINST AXIAL AND LATERAL MOVEMENT TO PERMIT THE WHEEL''S RADIAL MOVEMENT ABOUT ITS AXIS, A PIN EXTENDING FROM BOTH SIDES OF THE BALANCE WHEEL SHAFT ALONG ITS AXIS, A SECOND STATIONARY SUPPORT, LIMITING MEANS ON EACH SUPPORT COMPRISING A BUSHING WITHIN WHICH THE ENDS OF THE PIN ARE POSITIONED, WHEREIN THE TWO ENDS OF THE PIN ARE POSITIONED IN THEIR RESPECTIVE BUSHINGS WITH SUFFICIENT CLEARANCE SO THAT THE PINS CONTACT THE WALLS OF THE BUSHINGS ONLY DURING SHOCKS TO THE ASSEMBLY, WHEREBY THE APPARATUS MAY BE CARRIED AND USED IN ANY POSITION.
Claim 2
Dependent Claim
148 words
IN A PORTABLE TIMEKEEPING APPARATUS, A BALANCE WHEEL ASSEMBLY COMPRISING A SWINGABLE BALANCE WHEEL AND SHAFT, A FIRST STATIONARY SUPPORT, A FLAT SPIRAL SPRING HAVING ONE OF ITS END ATTACHED TO THE WHEEL ASSEMBLY AND ITS OTHER END ATTACHED TO THE FIRST SUPPORT, THE FLAT SPIRAL SPRING BEING SUFFICIENTLY STRONG TO NORMALLY SUPPORT THE BALANCE WHEEL AGAINST AXIAL AND LATERAL MOVEMENT TO PERMIT THE WHEEL''S RADIAL MOVEMENT ABOUT ITS AXIS, A PIN EXTENDING FROM BOTH SIDES OF THE BALANCE WHEEL SHAFT ALONG ITS AXIS, A SECOND STATIONARY SUPPORT, LIMITING MEANS ON EACH SUPPORT COMPRISING A BUSHING WITHIN WHICH THE ENDS OF THE PIN ARE POSITIONED, WHEREIN THE TWO ENDS OF THE PIN ARE POSITIONED IN THEIR RESPECTIVE BUSHINGS WITH SUFFICIENT CLEARANCE SO THAT THE PINS CONTACT THE WALLS OF THE BUSHINGS ONLY DURING SHOCKS TO THE ASSEMBLY, WHEREBY THE APPARATUS MAY BE CARRIED AND USED IN ANY POSITION.
References Cited (Backward Citations)
US2728188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |