Dane D Kato

US Patent:

43176399, Mar 2, 1982

Filed:

Dec 26, 1979

Appl. No.:

6/106933

Inventors:

Dane D. Kato - Berkeley CA

International Classification:

B43K 710

US Classification:

401209

Abstract:

The refill cartridge of a writing implement is retained in a hollow tubular assembly having an interior frustroconical portion at one end to receive and retain a tapered split collar portion of a cartridge retaining tip. The tapered split collar has an interior surface which may include at least one interior radial surface which along with friction between the collar interior surface and the refill cartridge locks the refill in proper position when stressed inwardly by insertion of the tapered split collar in the frustroconical portion of the tubular barrel.