Ribbon cartridge with self-contained ratchet and drive gear asse

Details Ribbon cartridge with self-contained ratchet and drive gear asse Ribbon cartridge with self-contained ratchet and drive gear asse

1985-04-02

1986-10-07

Burr, Edgar S.

Typewriting machines

Including interposed inking device for record-medium

Ribbon spool or mount therefor

400207, 4002081, 400232, B65H 7500, B41J 3528

Patent

active

046156283

ABSTRACT:
A ribbon cartridge having a self-contained ratchet assembly and drive gear assembly. Three principal components are provided: a drive gear; a ratchet gear spool connected by a ring gear formed thereon to the drive gear; and a take-up spool having internal teeth which are rotatably mounted on a ratchet formed on the external diameter of the ratchet gear spool. The drive gear is driven by a simple printer motor at a constant speed, which, in turn, drives the ratchet gear spool at a constant speed. This action, in turn, drives the take-up spool through the flexible plastic ratchet at a speed that varies with the amount of ribbon accumulating on the take-up spool.

REFERENCES:
patent: 2325885 (1943-08-01), Serrurier
patent: 2702623 (1955-02-01), Pelton
patent: 2733021 (1956-01-01), Foster et al.
patent: 3385535 (1968-05-01), Dodsworth
patent: 3409113 (1968-11-01), McLean
patent: 3432021 (1969-03-01), Morelli
patent: 3677486 (1972-07-01), Findlay
patent: 3923141 (1975-12-01), Hengelhaupt
patent: 3967790 (1976-07-01), Hess
patent: 4132485 (1979-01-01), Hess
patent: 4168127 (1979-09-01), Hengelhaupt
patent: 4347008 (1982-08-01), Jagodzinski et al.
patent: 4434950 (1984-03-01), Nunnerich et al.
patent: 4475829 (1984-10-01), Goff, Jr. et al.
IBM Tech. Disc. Bulletin, "Ribbon Feed Mechanism", Caudill et al., vol. 11, No. 12, May 1969, pp. 1754-1755.

Affiliated with

Also associated with

Rating

Ribbon cartridge with self-contained ratchet and drive gear asse does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ribbon cartridge with self-contained ratchet and drive gear asse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ribbon cartridge with self-contained ratchet and drive gear asse will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-640767