Film sheet cassette

Details Film sheet cassette Film sheet cassette

1980-03-28

1982-08-24

Anderson, Bruce C.

Special receptacle or package

For plate or sheet

Fragile or sensitive

378187, G03D 1308, G03D 1310

Patent

active

043463002

ABSTRACT:
A film sheet cassette is described which comprises a frame to which is attached a flat fixed front plate and a flat fixed back plate and located between them a movable pressure plate which is held in operative position when the cassette is closed by the force of magnetic repulsion exerted between an array of permanent magnetic poles of alternating polarity which is integral with the pressure plate and a second array of permanent magnets attached to a parallel top plate supported in the frame of the cassette. The cassette is opened by sliding the top plate so that the magnets of each array then attract each other.

REFERENCES:
patent: 2590891 (1952-04-01), Reuter
patent: 3704369 (1972-11-01), Paidosh
patent: 4013890 (1977-03-01), Conrad
patent: 4264821 (1981-04-01), Bauer

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