Camera apparatus for preventing load of exposed film

Patent

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Details

354275, G03B 700

Patent

active

049948288

ABSTRACT:
In a camera to be used with a light-tight cassette which in inherently capable of automatically advancing a filmstrip from the cassette shell whether the filmstrip is generally unexposed, partly exposed or substantially completely exposed, and which has a status indicator for providing a visible indication of the exposure status of the filmstrip, a sensing/blocking member is included to cooperate with the status indicator to prevent cassette loading into the camera in one embodiment only when the status indicator indicates that the filmstrip is completely exposed and in another embodiment either when the status indicator indicates that the filmstrip is partly exposed or it indicates that the filmstrip is completely exposed.

REFERENCES:
patent: 4310233 (1982-01-01), Okuyama et al.
patent: 4401379 (1983-08-01), Tamamura et al.
patent: 4423943 (1984-01-01), Gold
patent: 4834306 (1989-05-01), Robertson
patent: 4846418 (1989-07-01), Fairman
patent: 4947197 (1990-08-01), Smart
patent: 4965600 (1990-10-01), Smart et al.

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