Writing implement

Details Writing implement Writing implement

1975-04-16

1976-08-03

Charles, Lawrence

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

B43K 702

Patent

active

039726304

ABSTRACT:
A non-retractable ball-point pen is disclosed which comprises an elongate ink cartridge, an elongate barrel having a longitudinal bore therethrough for receiving the cartridge and an end cap for tightly sealing one end of the elongate barrel and for engaging and retaining the cartridge in the barrel. The other end of the barrel has a polygonal cross-section with a diameter smaller than the writing tip of the cartridge. Hence, the walls of the barrel defining the polygonal cross-section frictionally grasp the writing tip and the non-engaging surfaces of these walls provide vent passageways in communication between the interior of the bore and the outside atmosphere for venting the cartridge.

REFERENCES:
patent: 2910045 (1959-10-01), Gordo et al.
patent: 3282254 (1966-11-01), Malm et al.

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