US4273432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor driven camera
Assignee: Canon Inc
•
Filing: 1979-08-31
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Granted: 1981-06-16
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Expires: 1999-08-31
Abstract
Abstract In a camera having an electric motor and a flash device incorporated within the housing thereof, in order that simultaneous electrical power supply to the motor and the flash device from one and the same battery never occurs, there are provided a switch cooperative with a shutter button upon depression to inhibit electrical power supply to the flash device, and another switch arranged to be closed when each cycle of film winding operation is completed, thereby the motor is disconnected from the battery and the flash device is connected thereto.
Inventors
- 👤 Mutsuhide Matsuda
- 👤 Hideo Tamamura
- 👤 Tetsuya Taguchi
- 👤 Tadashi Okino
- 👤 Mutsunobu Yazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:08
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/083
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
A motor driven camera including: a shutter mechanism; a winding mechanism for transporting a film and for charging a shutter; a flash device; an electric motor for driving said winding mechanism; an electrical power source for supplying electrical energy to said motor and said flash device; means for detecting the completion of a film winding operation; shutter release means; a first switch cooperative with said release means for interrupting the supply of electrical energy to said flash device during the time when the shutter is in operation; a second switch cooperative with said detecting means for interrupting the supply of electrical energy to said flash device during the time when said motor is supplied with electrical energy, and for supplying electrical energy to said flash device when the completion of the film winding operation is detected by said detecting means; a film rewinding mechanism; changeover means for activating said film rewinding mechanism; and a rewind control switch connected in series to said second switch and arranged to be closed in response to said changeover means.
Claim 2
Dependent Claim
175 words
A motor driven camera including: a shutter mechanism; a winding mechanism for transporting a film and for charging a shutter; a flash device; an electric motor for driving said winding mechanism; an electrical power source for supplying electrical energy to said motor and said flash device; means for detecting the completion of a film winding operation; shutter release means; a first switch cooperative with said release means for interrupting the supply of electrical energy to said flash device during the time when the shutter is in operation; a second switch cooperative with said detecting means for interrupting the supply of electrical energy to said flash device during the time when said motor is supplied with electrical energy, and for supplying electrical energy to said flash device when the completion of the film winding operation is detected by said detecting means; a film rewinding mechanism; changeover means for activating said film rewinding mechanism; and a rewind control switch connected in series to said second switch and arranged to be closed in response to said changeover means.
Claim 3
Dependent Claim
33 words
A motor driven camera according to claim 1, wherein the rewinding mechanism includes a rewinding button which closes and opens a switch connected in series to the motor and the rewind control switch.
Claim 4
Dependent Claim
184 words
A motor driven camera including: a shutter; release means actuatable from a first condition to a second condition and restorable to the first condition for starting a camera operation including a shutter operation in response to the release means being actuated from the first condition to the second condition; film winding means for producing a film winding operation; an electric drive motor for operating the film winding means after a shutter operation and in response to said release means; a flash device; supply means for supplying electrical energy to said motor and supplying energizing power to said said flash device; a first switch cooperating with actuation of the release means to prevent the supply of power from the supply means to the flash device during a shutter operation; a second switch for correlating the prevention of the supply of power to the motor for the preparation of a supply of power to the flash device, and for permitting a supply of power to the flash device only when the film winding operation is completed and the release member is resored to the first condition.
Claim 5
Dependent Claim
184 words
A motor driven camera including: a shutter; release means actuatable from a first condition to a second condition and restorable to the first condition for starting a camera operation including a shutter operation in response to the release means being actuated from the first condition to the second condition; film winding means for producing a film winding operation; an electric drive motor for operating the film winding means after a shutter operation and in response to said release means; a flash device; supply means for supplying electrical energy to said motor and supplying energizing power to said said flash device; a first switch cooperating with actuation of the release means to prevent the supply of power from the supply means to the flash device during a shutter operation; a second switch for correlating the prevention of the supply of power to the motor for the preparation of a supply of power to the flash device, and for permitting a supply of power to the flash device only when the film winding operation is completed and the release member is resored to the first condition.
Claim 6
Dependent Claim
48 words
A motor driven camera according to claim 3, wherein the shutter includes opening means and closing means, the winding means includes means for detecting the completion of a winding operation, and the second switch is switched by the shutter closing means and the means for detecting wind-up completion.
Claim 7
Dependent Claim
174 words
A motor driven camera including: a winding mechanism for transporting a film and for energizing a shutter; a film rewinding mechanism; a flash device; an electric motor for driving said winding mechanism and said film rewinding mechanism; an electrical power source for supplying electrical energy to said motor and said flash device; release means for actuating said shutter; selector means for switching the driving force of the motor either to actuate the winding mechanism or to operate the film rewinding mechanism; a first switch associated with the release means to permit supply of power to the motor and the flash device when the shutter is non-operative; a second switch associated with the winding mechanism to supply power to the motor or to supply power to the flash device; and a third switch separate from the second switch and associated with the selector means to form a power supply path to the motor so as to drive the film rewinding mechanism, said third switch being connected in series with the first switch and the motor.
Claim 8
Dependent Claim
174 words
A motor driven camera including: a winding mechanism for transporting a film and for energizing a shutter; a film rewinding mechanism; a flash device; an electric motor for driving said winding mechanism and said film rewinding mechanism; an electrical power source for supplying electrical energy to said motor and said flash device; release means for actuating said shutter; selector means for switching the driving force of the motor either to actuate the winding mechanism or to operate the film rewinding mechanism; a first switch associated with the release means to permit supply of power to the motor and the flash device when the shutter is non-operative; a second switch associated with the winding mechanism to supply power to the motor or to supply power to the flash device; and a third switch separate from the second switch and associated with the selector means to form a power supply path to the motor so as to drive the film rewinding mechanism, said third switch being connected in series with the first switch and the motor.
References Cited (Backward Citations)
US3846812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |