Ribbon cassette with releasable locking mechanism

Details Ribbon cassette with releasable locking mechanism Ribbon cassette with releasable locking mechanism

1985-05-28

1986-08-12

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400208, B41J 3528

Patent

active

046053255

ABSTRACT:
A ribbon cassette incorporates a locking mechanism which acts to prevent both rotational spool movement and axial displacement or "treeing" of the coils of ribbon wound on a single flange supply spool prior to mounting for use in a typewriter. The locking mechanism is automatically released when the cassette is mounted for use in a typewriter or like machine.

REFERENCES:
patent: 3294228 (1966-12-01), Urso et al.
patent: 3464533 (1969-09-01), Gallant
patent: 3706426 (1972-12-01), Prahl
patent: 3934839 (1976-01-01), Serizawa
patent: 4210296 (1980-07-01), Frechette
patent: 4272202 (1981-06-01), Schroeder et al.
patent: 4413919 (1983-11-01), Applegate et al.
patent: 4449676 (1984-05-01), Ogata et al.
patent: 4500050 (1985-02-01), Oishi et al.

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