Film cassette for roll films

Details Film cassette for roll films Film cassette for roll films

1980-09-02

1982-06-08

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 717, G03B 104

Patent

active

043336159

ABSTRACT:
The invention relates to a cassette for roll films, in particular for miniature films, consisting of a cylindrical container as the film storage chamber, a film exit slot formed thereon and a film spool whereby at least one edge of the cylindrical container is turned inwards to increase the impermeability to light, the slot comprises strips bent downwards at its lateral ends to define the width of the slot and at least one closure element is formed onto the cassette container overlapping the deformed container edge and laterally closing the cassette slot.

REFERENCES:
patent: 2172255 (1939-09-01), Nagel
patent: 2519753 (1950-08-01), Goodhand
patent: 3128058 (1964-04-01), Ringle
patent: 3945584 (1976-03-01), Margan

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