Patent US2803772A successfully refreshed from Google Patents.
Patent US4086753A successfully refreshed from Google Patents.
US4086753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timepiece
Assignee: Seiko Koki KK
•
Filing: 1976-05-24
•
Granted: 1978-05-02
•
Expires: 1996-05-24
Abstract
Abstract A timepiece including two base plates opposite each other and defining a space therebetween, and having a gear train and an electro-mechanical converter for driving the gear train and both disposed in the space between the two base plates. The converter includes a stator comprised of a platelike member defining an intermediate plate portion positioned in the space between the two base plates. The intermediate plate portion supports gear train components and is isolated magnetically from the rest of the stator.
Inventors
- 👤 Hideo Tsuchiya
- 👤 Kiyoshi Kitai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:03
CPC Classifications
G; G04; G04B; G04B29/00; G04B29/02; G04C; G04C3/00; G04C3/008
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
116 words
In a timepiece, the combination comprising: two base plates opposite each other and defining a space therebetween; a gear train comprised of gear wheels and disposed in the space between said base plates; and electro-mechanical converter means responsive to electrical signals for driving said gear train and disposed in the space between said base plates, wherein said converter means is comprised of a stator, a rotor positioned opposite said stator, and means for magnetizing said stator to effect rotation of said rotor, and wherein said stator is comprised of a plate-like member defining an intermediate plate portion positioned in the space between said base plate and supporting at least a gear wheel of said gear train.
Claim 2
Dependent Claim
116 words
In a timepiece, the combination comprising: two base plates opposite each other and defining a space therebetween; a gear train comprised of gear wheels and disposed in the space between said base plates; and electro-mechanical converter means responsive to electrical signals for driving said gear train and disposed in the space between said base plates, wherein said converter means is comprised of a stator, a rotor positioned opposite said stator, and means for magnetizing said stator to effect rotation of said rotor, and wherein said stator is comprised of a plate-like member defining an intermediate plate portion positioned in the space between said base plate and supporting at least a gear wheel of said gear train.
Claim 3
Dependent Claim
46 words
In a timepiece according to claim 1, wherein one of said base plates includes an axial shaft projecting therefrom and having a gear wheel mounted thereon for rotation, and said intermediate plate is effective to define a limit to an axial position of said gear wheel.
Claim 4
Dependent Claim
50 words
In a timepiece according to claim 1, wherein said intermediate plate includes at least one hole at a position to effectuate positioning of a gear train gear wheel arbor during assembly of the timepiece, and said plate supports components of said gear train after assembly of the timepiece is complete.
Claim 5
Dependent Claim
34 words
In a timepiece according to claim 1, wherein said stator has at least one hole therethrough at a position effective to substantially isolate magnetically said intermediate plate portion from the rest of said stator.
Claim 6
Dependent Claim
35 words
In a timepiece according to claim 1, wherein said means for magnetizing is comprised of a coil wound around the rest of said stator for receiving electrical signals to magnetize the rest of said stator.
Claim 7
Dependent Claim
123 words
In a timepiece, the combination comprising: two base plates opposite each other and defining a space therebetween; a gear train comprised of gear wheels mounted for rotation on arbors and bearings and disposed in the space between said base plates; and electro-mechanical converter means responsive to electrical signals for driving said gear train and disposed in the space between said base plates, wherein said converter means is comprised of a stator, a rotor positioned opposite said stator, and means for magnetizing said stator to effect rotation of said rotor, and wherein said stator is comprised of a plate-like member defining an intermediate plate portion positioned in the space between said base plates and supporting a bearing of a gear train gear wheel arbor.
Claim 8
Dependent Claim
123 words
In a timepiece, the combination comprising: two base plates opposite each other and defining a space therebetween; a gear train comprised of gear wheels mounted for rotation on arbors and bearings and disposed in the space between said base plates; and electro-mechanical converter means responsive to electrical signals for driving said gear train and disposed in the space between said base plates, wherein said converter means is comprised of a stator, a rotor positioned opposite said stator, and means for magnetizing said stator to effect rotation of said rotor, and wherein said stator is comprised of a plate-like member defining an intermediate plate portion positioned in the space between said base plates and supporting a bearing of a gear train gear wheel arbor.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |