Patent US3995291A successfully refreshed from Google Patents.
US3995291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor driving device for a camera
Assignee: Konica Minolta Inc
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Filing: 1974-12-23
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Granted: 1976-11-30
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Expires: 1994-12-23
Abstract
Abstract A circuit for use in connection with a motor driving device for a camera in which a timing circuit is provided. The timing circuit comprises a resistor and condensor and a switch for discharging the condensor. A second switch is provided in a series with the condensor and actuated by the camera release button to render the timing circuit inoperative in order to quickly ready the camera for additional use.
Inventors
- 👤 Haruhiko Momose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:52
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/42; G03B17/425
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
In a motor driving device for a camera comprising a motor for releasing a shutter and winding a film, switching means for control of said motor and means for providing a time interval between exposures connected to said switching means, said means for providing a time interval comprising a condenser, a resistor connected with said condenser and a first switch for discharging the charge on said condenser; a second switch in series with said condenser, said second switch being actuated by a camera release button so that said second switch is closed when said camera release button is not operated to render said time interval providing means inoperative and is open when said camera release button is operated to render said time interval providing means operative.
Claim 2
Dependent Claim
126 words
In a motor driving device for a camera comprising a motor for releasing a shutter and winding a film, switching means for control of said motor and means for providing a time interval between exposures connected to said switching means, said means for providing a time interval comprising a condenser, a resistor connected with said condenser and a first switch for discharging the charge on said condenser; a second switch in series with said condenser, said second switch being actuated by a camera release button so that said second switch is closed when said camera release button is not operated to render said time interval providing means inoperative and is open when said camera release button is operated to render said time interval providing means operative.
Claim 3
Dependent Claim
35 words
A motor driving device for a camera according to claim 1 wherein said second switch is of the normally closed type and is actuated by a relay energized upon release of said camera release button.
Claim 4
Dependent Claim
122 words
A motor driving device for a camera comprising: a. a motor for releasing a shutter and winding a film, b. switching circuit means for controlling said motor comprising a first switching means for control of said motor to effect shutter release and a second switching means for control of said motor to wind the film, c. means for providing a time interval between exposures, said time interval providing means being connected to said switching circuit means, d. a switch connected to said time interval providing means and actuated by a camera release button so that once the button is depressed, said time interval providing means is made operative and once the button is released, said time interval providing means is made inoperative.
Claim 5
Dependent Claim
122 words
A motor driving device for a camera comprising: a. a motor for releasing a shutter and winding a film, b. switching circuit means for controlling said motor comprising a first switching means for control of said motor to effect shutter release and a second switching means for control of said motor to wind the film, c. means for providing a time interval between exposures, said time interval providing means being connected to said switching circuit means, d. a switch connected to said time interval providing means and actuated by a camera release button so that once the button is depressed, said time interval providing means is made operative and once the button is released, said time interval providing means is made inoperative.
Claim 6
Dependent Claim
21 words
The motor driving device according to claim 3 wherein said time interval providing means is connected to said first switching 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) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |