Writing instrument

Details Writing instrument Writing instrument

1992-11-16

1994-02-15

Bratlie, Steven A.

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

401198, B43K 802, B43K 808, B43K 812

Patent

active

052861279

ABSTRACT:
A writing instrument has an elongated hollow barrel having a front end formed with a longitudinally extending tip passage centered on and defining an axis, an ink reservoir in the barrel, and a rigid synthetic-resin tip extending along the axis, formed with longitudinal capillaries, and having a front pointed end which projects axially forwardly from the barrel and a rear pointed end which is in the reservoir. This tip is centrally formed with a radially outwardly open groove having axially spaced front and rear flanks and is substantially symmetrical about a plane bisecting the groove. A plurality of radially inwardly projecting holding ribs formed in the passage radially engage the tip and each form a forwardly directed shoulder bearing axially forward on the front flank of the groove.

REFERENCES:
patent: 3003181 (1961-10-01), Rosenthal
patent: 3141187 (1964-07-01), Simon, Jr. et al.
patent: 3345674 (1967-10-01), De Groft
patent: 3969027 (1976-07-01), Randar et al.
patent: 4583875 (1986-04-01), Manusch et al.

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