Patent US3653199A successfully refreshed from Google Patents.
US3653199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil carrier means in an electronic timepiece movement
Assignee: Citizen Watch Co Ltd
•
Filing: 1970-11-10
•
Granted: 1972-04-04
•
Expires: 1990-11-10
Abstract
Abstract In an electronic timepiece the electromagnet coils which cooperate with the movable magnets mounted on the balance wheel are mounted on a frame pivoted to the base of the timepiece so as to arrange the coils for movement into and out of operative relation with the magnets. The electrical connections for the coils are made thru complimentary sliding contact members mounted about the pivot point for the frame.
Inventors
- 👤 Kazuyoshi Inoki
- 👤 Yasuaki Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:25
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04B; G04B29/00; G04B29/04; G04C3/067
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
In an electronic timepiece having frame means, movable magnet means, carrier means and coil means mounted on said carrier means for electromagnetic cooperation with said magnet means, the improvements comprising pivot means for pivotally mounting said carrier means on said frame means for movement between a first position locating said coil means in operative position relative to said movable magnet means and a second position to facilitate servicing, and sliding electrical connection means for said coils disposed adjacent said pivot means.
Claim 2
Dependent Claim
81 words
In an electronic timepiece having frame means, movable magnet means, carrier means and coil means mounted on said carrier means for electromagnetic cooperation with said magnet means, the improvements comprising pivot means for pivotally mounting said carrier means on said frame means for movement between a first position locating said coil means in operative position relative to said movable magnet means and a second position to facilitate servicing, and sliding electrical connection means for said coils disposed adjacent said pivot means.
Claim 3
Dependent Claim
74 words
In an electronic timepiece as set forth in claim 1 wherein said coil means is comprised of two separate coils, and said electrical connection means is comprised of at least one movable electrical contact connected to each coil and mounted for movement with said carrier means adjacent said pivot means and a plurality of stationary electrical contacts mounted adjacent said pivot means and disposed in sliding engagement with each of said movable electrical contacts.
Claim 4
Dependent Claim
71 words
In an electronic timepiece as set forth in claim 1 wherein said coil means is comprised of a single coil having a driving and sensing portion and each electrical connection means is comprised of at least one movable electrical contact connected to each position of said coil and mounted for movement with said carrier means adjacent said pivot means and disposed in sliding engagement with each of said movable electrical contacts.
Claim 5
Dependent Claim
76 words
In an electronic timepiece as set forth in claim 1 wherein three contact strips electrically connected to said coil means are mounted on said carrier means substantially parallel to each other with the middle strip thereof intersecting the pivot means, support means overlying said carrier means and provided with three additional contact strips superimposed in sliding contact on the three contact strips n said carrier means, said middle strips being electrically connected to said pivot means.
Claim 6
Dependent Claim
18 words
In an electronic timepiece as set forth in claim 4 wherein said support means in a flexible strip.
References Cited (Backward Citations)
FR1473362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |