Film cassette opener
OwnerBertil Lindgreninventor
Life of this patent
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Abstract
A film cassette opener in which a film take-up spool in the cassette is forced in its axial direction out of the cassette. The opener has two jaws clasping the sides of the cassette and an ejection bar reciprocally movable in an axial direction with respect to the cassette. One end of the bar thrusts against the film take-up spool to cause one end cover of the cassette to be thrust away forcing the take-up spool with film out of the cassette.
Claims7
A film cassette opener, characterized in that it comprises a pair of mutually movable jaws (1, 2) with contact surfaces, which preferably are provided with saw teeth or jags (1', 2') for reliably retaining a film cassette (11) positioned between the jaws and containing a film (21) rolled on a spool (11'), and an axially reciprocating ejector bar (13'), which by means of a mechanic drive means is displaceable axially relative to the retained film cassette and capable with one end to thrust against the spool with film, so that the spool first pushes off the outer end wall cover (11") of the film cassette and thereafter together with the film is pressed out of the film cassette.
Dependencies are inferred from the claim text.