Apparatus and method for identifying a film cartridge

Details Apparatus and method for identifying a film cartridge Apparatus and method for identifying a film cartridge

1985-09-30

1987-03-03

Perkey, William B.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354288, 242 711, G03B 1726, G03B 1730

Patent

active

046471707

ABSTRACT:
A particular type camera requiring the exposed film to receive special handling at the photofinisher is adapted for use with a film cartridge which includes a film spool having an elongate coaxial hole open at one end of the spool. A plug is supported in the coaxial hole in the spool for movement along the hole from a predetermined location relatively close to the open end of the spool to another location further into the hole. When the cartridge is loaded in the camera, a plunger member of the camera is received in the coaxial hole to move the plug from the predetermined location to the other location. This will provide an indication to the photofinisher that the cartridge was used in the camera.

REFERENCES:
patent: 3672277 (1972-06-01), Kobayashi
patent: 3722387 (1973-03-01), Walther
patent: 4338015 (1982-07-01), Holmes

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