Typewriting machines – Including interposed inking device for record-medium – Ribbon-feeding mechanism
Reexamination Certificate
2001-10-31
2003-12-23
Colilla, Daniel J. (Department: 2854)
Typewriting machines
Including interposed inking device for record-medium
Ribbon-feeding mechanism
C400S223000
Reexamination Certificate
active
06666597
ABSTRACT:
FIELD OF THE INVENTION
A geared drive hub assembly for a printer cartridge containing a geared hub drive removably engaged with a spool.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 6,161,972 of Kameyama Yoshikatsu discloses an ink ribbon cartridge having a particular spool and spindle arrangement. The spindles used in the device of this patent each have one end which includes a disk shaped section, and a spindle portion 64 which includes projections 65 and 66 disposed 150 degrees apart from each other (see FIGS. 11 and 12).
The spindles disclosed in U.S. Pat. No. 6,161,972, although they have some limited utility when used with the spools disclosed in such patent, cannot readily be used with other spools. Furthermore, they tend to fail when more than a minimal amount of shear force is applied to the projections 65 and 66 and, in general, have inferior mechanical properties.
It is an object of this invention to provide a novel spindle which can be used with many different spools and which has improved mechanical properties.
SUMMARY OF THE INVENTION
In accordance with this invention, there is provided a geared drive hub assembly removably engaged with a spool. The drive hub contains a gear integrally connected to a spindle assembly. The spindle assembly contains three stepped splines integrally connected to each other and to a base; and the spool is comprised of means for removably engaging each of the three stepped splines.
REFERENCES:
patent: 3788221 (1974-01-01), Borneman
patent: 3894733 (1975-07-01), Borneman
patent: 4568210 (1986-02-01), Privitera
patent: 4673304 (1987-06-01), Liu et al.
patent: 5439303 (1995-08-01), Alday
patent: 5442449 (1995-08-01), Stemmle et al.
patent: 5570633 (1996-11-01), Schultz et al.
patent: 6102509 (2000-08-01), Olson
patent: 6161972 (2000-12-01), Kameyama et al.
Duerr Jens
Duerr Oliver
Neri Joel D
Colilla Daniel J.
Greenwald Howard J.
International Imaging Materials Inc.
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