Writing implement with improved cartridge holder

Details Writing implement with improved cartridge holder Writing implement with improved cartridge holder

1979-12-26

1982-03-02

Coven, Edward M.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401199, B43K 710

Patent

active

043176399

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.

REFERENCES:
patent: 3325851 (1967-06-01), Roller
patent: 3446563 (1969-05-01), Burnham
patent: 3776646 (1973-12-01), Bich
patent: 3966336 (1976-06-01), Lotfallah
patent: 4057354 (1977-11-01), Bajusz et al.

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