Ball-point pen tip

Details Ball-point pen tip Ball-point pen tip

1981-12-17

1984-07-03

Coughenour, Clyde I.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401199, 401208, B43K 710

Patent

active

044576447

ABSTRACT:
A ball-point pen tip provided with a tubular ink guide portion formed of metal. The ink guide portion is formed with radial projections extending radially inwardly produced by the pressing deformation of the metal tube. These projections define capillary channels between neighbouring projections and a ball seat at their radially oriented surfaces. An ink guide stem disposed in the tubular ink guide portion has one end in contact with at least one of the projections, and has the other end confronting with an ink supply stem inserted in a holder. The holder and the ink guide portion provide a socket of the pen tip. Such pen tip is applied to a ball-point pen which includes an ink reservoir adapted to be connected to said ink supply stem. Such ball-point pen employs an aqueous solution based low viscosity ink.

REFERENCES:
patent: 2834321 (1958-05-01), Duefrene
patent: 2879586 (1959-03-01), Fehling
patent: 3162941 (1964-12-01), Young
patent: 4139313 (1979-02-01), Hori

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