Film cassette

Details Film cassette Film cassette

1983-07-13

1985-06-25

Levy, Stuart S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 712, B65D 8567, B65H 1900

Patent

active

045249202

ABSTRACT:
A film cassette includes a cassette main body with a film supply portion and a film take-up portion, a spool rotatably arranged at said film take-up portion of the cassette main body, and bearings arranged at the film take-up portion for rotatably supporting the spool. The spool comprises an outer cylinder around which a film is wound, an inner cylinder which is slidable in an axial direction relative to the outer cylinder and which is rotatable with the outer cylinder, and a compression spring, one end of which is engaged with the outer cylinder and the other end of which is engaged with the inner cylinder and biasing and moving the outer and inner cylinders relative to each other in the axial direction.

REFERENCES:
patent: 2183522 (1939-12-01), Wittel et al.
patent: 2511383 (1950-06-01), Summers
patent: 3422740 (1969-01-01), Nerwin
patent: 4002238 (1977-01-01), Cameron et al.

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