Barrel cylinder for writing instrument

Details Barrel cylinder for writing instrument Barrel cylinder for writing instrument

1998-02-06

1999-10-05

Recla, Henry J.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401208, 401216, B43K 700

Patent

active

059612398

ABSTRACT:
In a barrel cylinder for a writing instrument, a writing element support hole portion or support projection is formed in a deep portion of a distal end port of the barrel cylinder where a writing element extends, the writing element support hole portion or support projection having an inner diameter slightly larger than the outer diameter of the writing element, and an enlarged port portion having an inner diameter larger than the writing element support hole portion or support projection and a gate mark appearing at a location of an inner surface thereof is formed at an inlet port portion of the distal end port of the barrel cylinder which is on the outer side of the writing element support hole portion or support projection.

REFERENCES:
patent: 501895 (1893-07-01), Moore
patent: 926611 (1909-06-01), De La Rue
patent: 2369224 (1945-02-01), Ferger
patent: 2996749 (1961-08-01), Hester
patent: 3966336 (1976-06-01), Lotfallah

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