Protective band for photosensitive film on spools

Details Protective band for photosensitive film on spools Protective band for photosensitive film on spools

1980-01-16

1981-10-27

Dixson, Jr., William T.

Special receptacle or package

For roll or reel

With clamp

206400, B65D 8567, B65D 85671

Patent

active

042968577

ABSTRACT:
Photosensitive film carried on spools is ordinarily protected from ambient light by opaque covering strips which must be manually removed. Removal of these strips often causes some exposure and wastage of the film. The present invention discloses a protective band which removes itself when the film is fed out under tension.

REFERENCES:
patent: 1468636 (1923-09-01), Hoeft
patent: 1857523 (1932-05-01), Wittel
patent: 2397087 (1946-03-01), Camras
patent: 2822919 (1958-02-01), Kulka
patent: 3156353 (1964-11-01), Harnish
patent: 3235087 (1966-02-01), Hultgren
patent: 3237796 (1966-03-01), Callahan
patent: 3251462 (1966-05-01), Hultgren
patent: 3311228 (1967-03-01), Kulka
patent: 3343667 (1967-09-01), Tellen
patent: 3401793 (1968-09-01), Hess
patent: 3525427 (1970-08-01), Kulka

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