Coating implements with material supply – Including ball – roller or endless-belt tool – Ball
Patent
1979-05-25
1982-10-26
Coughenour, Clyde I.
Coating implements with material supply
Including ball, roller or endless-belt tool
Ball
401209, B43K 710, B43K 108
Patent
active
043559158
ABSTRACT:
A ball-point pen comprises a tip having a ball retainer at its front end for rotatably carrying a ball therein and having a through-opening formed in the ball retainer for communication with the rear end thereof, and an axial sleeve for containing a quantity of ink therein. The through-opening is formed a plurality of axially and radially extending ink guide grooves in its inner surfaces. The guide grooves have a width which is gradually narrowed toward the axis of the pen and a radial depth which is gradually reduced toward the ball retainer.
REFERENCES:
patent: 1527971 (1925-03-01), Forsell
patent: 2660151 (1953-11-01), Smith
patent: 2967353 (1961-01-01), Arengo
patent: 3302279 (1967-02-01), Rosa
patent: 3671616 (1972-06-01), Nakata
patent: 4139313 (1979-02-01), Hori
Kaji Shigeru
Noguchi Seiji
Adams Bruce L.
Burns Robert E.
Coughenour Clyde I.
Lobato Emmanuel J.
Pentel Kabushiki Kaisha
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