Film canister to facilitate diameter sensing

Details Film canister to facilitate diameter sensing Film canister to facilitate diameter sensing

1990-03-29

1992-10-06

Adams, Russell E.

Optics: motion pictures

Removable film strip magazine type

354275, 352 78C, 242 712, G03B 118

Patent

active

051536250

ABSTRACT:
A film canister with non-contacting means for indicating and facilitating sensing and calculation of film roll diameter and length of film left in the canister, and providing indication of film-out. The system for sensing the roll diameter comprises the canister, an inductive sensor and metered feed rollers. The system for calculating the film diameter and length and determining film-out comprises a microprocessor with visual indicating means.

REFERENCES:
patent: 3730453 (1973-05-01), Hotchkiss et al.
patent: 3734052 (1973-05-01), Feldman
patent: 3977776 (1976-08-01), Wagensonner et al.
patent: 4153361 (1979-05-01), Axelrod
patent: 4174888 (1979-11-01), Hunn et al.
patent: 4418994 (1983-12-01), Gottshalk et al.
patent: 4627695 (1986-12-01), Beauviala et al.
patent: 4758851 (1988-07-01), Zeth
patent: 4767079 (1988-08-01), Saito et al.
patent: 5003333 (1991-03-01), Earnhart

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