Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
Patent
1978-08-30
1981-01-06
Coven, Edward M.
Typewriting machines
Including interposed inking device for record-medium
Means auxiliary to ribbon mechanism
4002414, 400234, B41J 3336
Patent
active
042433347
ABSTRACT:
A ribbon cartridge comprising a housing including a first cavity in which an ink ribbon in the form of an endless loop is received in irregular form, and a second cavity in which a tape in the form of an endless loop of high polymer film or metal film and having a width which is substantially equal to that of the ribbon is received in irregular form. The housing has an inlet and an outlet, which are common to both the ribbon and the tape and which communicate with both the first and second cavities. Either the ribbon or tape is drawn to the outside of the housing through the common outlet from their associated cavity and is then again inserted into the corresponding cavity through the common inlet. Intermediate the inlet and the outlet, both the ribbon and the tape are maintained in substantially overlapping relationship so as to be subject to the action of a printing element. The common inlet is provided with at least one set of pinch rollers for driving the ribbon and the tape into their associated cavities while the common outlet is provided with known friction means which delay the movement of the ribbon and the tape out of their associated cavity.
REFERENCES:
patent: 2699244 (1955-01-01), Markes
patent: 2849096 (1958-08-01), Markes
patent: 3610140 (1971-10-01), Kondur
patent: 3904017 (1975-09-01), Frechette
patent: 3960259 (1976-06-01), Guerrini et al.
patent: 3989132 (1976-11-01), Carson
Adams Bruce L.
Burns Robert E.
Coven Edward M.
Lobato Emmanuel J.
Star Seimitsu Kabushiki Kaisha
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