1976-07-23
1977-10-18
Gonzales, John
354249, 354266, G03B 940
Patent
active
040548910
ABSTRACT:
In a focal plane camera shutter of the type having opening blades and closing blades which are actuated sequentially to provide an exposure, the opening blades are operated by an operating member which is biased in a direction to move the blades to aperture-closing position. The opening blades are moved to open position when the shutter is released by a driving member which is biased in a direction to open the blades and is releasably connected to the operating member by a connecting member. At approximately the termination of the exposure, the connecting member is actuated to release the blade operating member from the driving member whereupon they are moved by the aforementioned bias to closed position. The camera is then reset by moving the driving member to its set position whereupon the connecting member again connects the driving member with the blade operating member. The closing blades may likewise have an operating member releasably connected to a driving member by a connecting member which is released upon termination of the exposure so that the closing blades likewise return to set position.
REFERENCES:
patent: 3810224 (1974-05-01), Kitai et al.
patent: 3829878 (1974-08-01), Onda et al.
patent: 3999196 (1976-12-01), Inoue
Onda Eiichi
Watanabe Masanori
Adams Bruce L.
Burns Robert E.
Gonzales John
Lobato Emmanuel J.
Seiko Koki Kabushiki Kaisha
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