Coating implements with material supply – Including tool with blade-like – pad-like – or apertured... – Apertured tool
Patent
1992-06-15
1993-08-24
Bratlie, Steven A.
Coating implements with material supply
Including tool with blade-like, pad-like, or apertured...
Apertured tool
401199, 401292, 346140A, B43K 100, B43K 802
Patent
active
052383202
ABSTRACT:
A pen nib preferably for use in a high speed writing, having a coaxial capillary passage for ink. The coaxial passage extends axially in the nib body, and has, in a cross-sectional view, a coaxial portion, a plurality of outer portions and intermediate connecting portions between the coaxial portion and respective outer portions. The coaxial passage partially opens axially at peripheral openings formed in a round or sharped head of the nib, that is the coaxial portion and intermediate portions are all closed axially at the head, and the outer portions are open axially at the peripheral openings formed such that they are arranged at a top surface of the head around the center thereof. The intermediate passage portions may be open radially at the peripheral openings. The nib is made of hard and wear material such as metal, ceramic or thermosetting resin by an injection molding with a subsequent heat treatment. Each peripheral opening is chamfered to give a round edge, and preferably are formed to have a groove following the round edge for guiding and discharging dust from the utmost radially outer edge thereof.
REFERENCES:
patent: 2431015 (1947-11-01), Andrews et al.
patent: 3467478 (1969-09-01), Webber
patent: 3614248 (1971-10-01), Otsuka
patent: 3778495 (1973-12-01), Woolley
patent: 3933965 (1976-01-01), Gallone et al.
patent: 4215948 (1980-08-01), Hori et al.
patent: 4551038 (1985-11-01), Baker et al.
Komatsu Takahiro
Shimoishi Tetsuo
Bratlie Steven A.
Teibow Company Limited
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