Pen having cascaded cartridges of different colors

Details Pen having cascaded cartridges of different colors Pen having cascaded cartridges of different colors

2005-03-01

2005-03-01

Walczak, David J. (Department: 3751)

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

C401S017000, C401S019000

Reexamination Certificate

active

06860666

ABSTRACT:
A pen comprises a plurality of cartridges matingly cascaded together along a bore thereof, the stick of each cartridge having a color different that of others, two inner opposite protrusions adjacent a bottom end of the pen, the protrusions being adapted to fasten the lowest cartridge, and two opposite recesses at the bottom end of the pen; and a releasable pen. Removing the lowest cartridge and inserting the cartridge into a top end of the pen will push the lowest cartridge out of the pen. Alternatively, engaging the lowest cartridge with another cartridge prior to pushing upwardly will remove the topmost cartridge from the pen. The top end of the topmost cartridge is either projected from the top end of the pen or flush therewith. Also, the hand of a user is prevented from being contaminated by the stick while removing the same.

REFERENCES:
patent: 3338215 (1967-08-01), Fu Chin et al.
patent: 3708235 (1973-01-01), Kolomeir
patent: 3761188 (1973-09-01), Chin-Chih

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