Photographic film assemblage having a non-lighttight film withdr

Details Photographic film assemblage having a non-lighttight film withdr Photographic film assemblage having a non-lighttight film withdr

1982-04-02

1984-01-03

Mathews, A. A.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 711, G03B 1726

Patent

active

044239432

ABSTRACT:
A photographic film assemblage including a film spool about which is wound a length of film, a housing for rotatably supporting the film spool such that a leading end of the film may be advanced to the exterior of the housing via a film withdrawal opening or passageway in the housing, and means for protecting the film from exposure by ambient light which passes freely through the passageway. The passageway is constructed such that relative rotation between the film spool and the housing, in a given direction, is all that is needed to move the leading end of the film to the exterior of the housing via the passageway.

REFERENCES:
patent: 2176507 (1939-10-01), Nagel
patent: 2541476 (1951-02-01), Mihalyi
patent: 3261237 (1966-07-01), Sentiff
patent: 3695160 (1972-10-01), Stockdale
patent: 3705696 (1972-12-01), Edwards et al.
patent: 3864993 (1975-02-01), Hovind
patent: 4034393 (1977-07-01), Goldmacher
patent: 4047653 (1977-09-01), Starr
patent: 4145133 (1979-03-01), Wareham
patent: 4212527 (1980-07-01), Fischer
patent: 4335948 (1982-06-01), Cocco

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