Film cartridge light blocking door opening/closing mechanism

Details Film cartridge light blocking door opening/closing mechanism Film cartridge light blocking door opening/closing mechanism

1997-12-31

1999-08-10

Walsh, Donald P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Including threading

2423261, 242338, 396536, G03B 156

Patent

active

059345900

ABSTRACT:
A simple and compact opening and shutting apparatus for a film cartridge which has a cylindrical body. The apparatus includes an opening section projecting over the body. The opening section has a film opening and a film cover which opens and shuts the film opening. The apparatus also includes a chamber which holds the cartridge and has a loading opening for loading the cartridge into the chamber. A cartridge cover opens and shuts the loading opening, and there is provided a lock for the film cover. A driver couples the cartridge cover, and a connector connects the lock with the driver so that the film cover is opened when the cartridge cover is shut. The connector is arranged in a concave area which is formed by the surface of the cylindrical body of the cartridge and the opening section projecting over the body.

REFERENCES:
patent: 5220371 (1993-06-01), Tanii et al.
patent: 5231438 (1993-07-01), Smart
patent: 5477295 (1995-12-01), Lawther et al.
patent: 5550608 (1996-08-01), Smart et al.
patent: 5563672 (1996-10-01), Fuss et al.
patent: 5592253 (1997-01-01), Nishimura et al.
patent: 5600393 (1997-02-01), Funahashi
patent: 5630192 (1997-05-01), Kobayashi
patent: 5638152 (1997-06-01), Stephenson, III et al.
patent: 5664248 (1997-09-01), Naka et al.
patent: 5669018 (1997-09-01), Kamata

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