Patent US3576156A successfully refreshed from Google Patents.
US3576156A
Expired / Lapsed
US
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Mechanism for actuating ignition of percussion-ignitable flash lamps
Assignee: Eastman Kodak Co
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Filing: 1968-10-14
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Granted: 1971-04-27
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Expires: 1988-10-14
Abstract
Abstract For use in photographic apparatus having a shutter, a shutter driver movable into engagement with the shutter to open the shutter, and a socket adapted to receive a percussion-ignitable flashlamp unit, a mechanism is provided for actuating ignition of a percussion-ignitable flashlamp unit received in the socket using motion of the shutter driver to supply the force for said actuation.
Inventors
- 👤 Chester W Michatek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:56
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0478; G03B15/0494
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
209 words
In a camera having: a. means for receiving a flash unit having at least one flashlamp ignitable by striking and a releasable preenergized striker for effecting such sTriking; b. an ignition member movable from a first position to a second position to release a striker of a received unit; c. a shutter mounted for movement between open and closed positions; d. resilient means urging said shutter toward a closed position; e. a body release movable by a camera operator; f. a shutter driver movable between a first position and a second position; g. means for urging said shutter driver from said first position towards said second position; and h. means for retaining said driver in said first position, said retaining means being releasable in response to operator operation of said body release; the improvement wherein said shutter driver includes: means for engaging and driving open said shutter during movement of said shutter driver from said first position to said second position, and means for translating motion of said driver moving from its first position to its second position to said ignition member to move said ignition member from its first position to its second position to fire a received flash unit in timed relation with operation of said shutter.
Claim 2
Dependent Claim
209 words
In a camera having: a. means for receiving a flash unit having at least one flashlamp ignitable by striking and a releasable preenergized striker for effecting such sTriking; b. an ignition member movable from a first position to a second position to release a striker of a received unit; c. a shutter mounted for movement between open and closed positions; d. resilient means urging said shutter toward a closed position; e. a body release movable by a camera operator; f. a shutter driver movable between a first position and a second position; g. means for urging said shutter driver from said first position towards said second position; and h. means for retaining said driver in said first position, said retaining means being releasable in response to operator operation of said body release; the improvement wherein said shutter driver includes: means for engaging and driving open said shutter during movement of said shutter driver from said first position to said second position, and means for translating motion of said driver moving from its first position to its second position to said ignition member to move said ignition member from its first position to its second position to fire a received flash unit in timed relation with operation of said shutter.
Claim 3
Dependent Claim
154 words
In a camera having: a. a shutter driver mounted for movement from a first position to a second position; b. means for urging said shutter driver from said first position towards said second position; c. releasable means for retaining said shutter driver in said first position; and d. a shutter openable to effect an exposure and positioned to be engaged and driven open by said shutter driver during movement of said shutter shutter driver from said first to said second position; the improvement comprising: a flash igniting member movable from a retracted position to an igniting position for firing a percussion ignitable flashlamp and means movable with said shutter driver for translating the force of movement of said shutter driver in going from said first to said second position to said igniting member to move said igniting member from its retracted position to its firing position in timed relation with opening of said shutter.
Claim 4
Dependent Claim
154 words
In a camera having: a. a shutter driver mounted for movement from a first position to a second position; b. means for urging said shutter driver from said first position towards said second position; c. releasable means for retaining said shutter driver in said first position; and d. a shutter openable to effect an exposure and positioned to be engaged and driven open by said shutter driver during movement of said shutter shutter driver from said first to said second position; the improvement comprising: a flash igniting member movable from a retracted position to an igniting position for firing a percussion ignitable flashlamp and means movable with said shutter driver for translating the force of movement of said shutter driver in going from said first to said second position to said igniting member to move said igniting member from its retracted position to its firing position in timed relation with opening of said shutter.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |