Filmstrip cartridge

Details Filmstrip cartridge Filmstrip cartridge

1976-09-20

1978-06-06

Mautz, George F.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242197, 352 78R, G03B 2302

Patent

active

040931420

ABSTRACT:
A filmstrip cartridge for use with a complimentary filmstrip projector includes a hood hinged to a film containing housing. The cartridge features spring means to maintain the film in a coiled state during winding and unwinding, a force biased closure means, a film guide channel defined between the hood and the housing having friction reducing means to insure reliable film movement, and an optional positive film movement lock to prevent inadvertant film removal.

REFERENCES:
patent: 1347867 (1920-07-01), Mitten
patent: 1623505 (1927-04-01), Tessier
patent: 2032213 (1936-02-01), Howell
patent: 3283886 (1966-11-01), Addis et al.
patent: 3333785 (1967-08-01), Baur et al.
patent: 3342431 (1967-09-01), Mouissie
patent: 3536276 (1970-09-01), Bundschuh et al.
patent: 3774309 (1973-11-01), Leopoldi
patent: 3777997 (1973-12-01), Spiroch et al.

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