US4396266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor drive device
Assignee: Nikon Corp
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Filing: 1982-07-23
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Granted: 1983-08-02
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Expires: 2002-07-23
Abstract
Abstract In a motor drive device mountable on a camera having manually operable first switch means, a magnet adapted to be energized by actuation of the first switch means and release a shutter, and first release lock means manually operated to render only the first switch means inoperable, there is provided manually operable second switch means adapted, when mounted on the camera, to be parallel-connected to the first switch means, and second release lock means manually operated to render only the second switch means inoperable.
Inventors
- 👤 Tetsuro Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:30
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/42; G03B17/425
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
In a motor drive device mountable on a camera, said camera having: first switch means operable to effect power supply to an electric circuit in the camera, second switch means operable to effect a shutter release operation, a magnet energized upon actuations of said first and second switch means to release the shutter, first disabling means operable to disable power supply effected by the first switch means, the improvement comprising: third switch means operable, when mounted on said camera, to be parallel-connected to said first switch means to effect power supply to the camera, fourth switch means operable, when mounted on said camera, to be parallel-connected to said second switch means and to release the shutter, and second disabling means operable to disable power supply effected by said third switch means.
Claim 2
Dependent Claim
131 words
In a motor drive device mountable on a camera, said camera having: first switch means operable to effect power supply to an electric circuit in the camera, second switch means operable to effect a shutter release operation, a magnet energized upon actuations of said first and second switch means to release the shutter, first disabling means operable to disable power supply effected by the first switch means, the improvement comprising: third switch means operable, when mounted on said camera, to be parallel-connected to said first switch means to effect power supply to the camera, fourth switch means operable, when mounted on said camera, to be parallel-connected to said second switch means and to release the shutter, and second disabling means operable to disable power supply effected by said third switch means.
Claim 3
Dependent Claim
22 words
A motor drive device according to claim 1, wherein said second disabling means is connected in series with said third switch means.
Claim 4
Dependent Claim
78 words
In a motor drive device mountable on a camera, the camera having first switch means operable to effect power supply therethrough to an electric circuit in the camera, and first disabling means operable to disable power supply effected through the first switch means, the improvement comprising: second switch means adapted, when mounted on said camera, to be parallel-connected to said first switch means; and second disabling means operable to disable power supply effected through said second switch means.
Claim 5
Dependent Claim
78 words
In a motor drive device mountable on a camera, the camera having first switch means operable to effect power supply therethrough to an electric circuit in the camera, and first disabling means operable to disable power supply effected through the first switch means, the improvement comprising: second switch means adapted, when mounted on said camera, to be parallel-connected to said first switch means; and second disabling means operable to disable power supply effected through said second switch means.
Claim 6
Dependent Claim
22 words
A motor drive device according to claim 3, wherein said second disabling means is connected in series with said second switch means.
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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |