Coating implements with material supply – Including ball – roller or endless-belt tool – Ball
Patent
1985-09-16
1992-09-29
Bratlie, Steven A.
Coating implements with material supply
Including ball, roller or endless-belt tool
Ball
401216, 401217, 401219, 401230, B43K 710
Patent
active
051509792
ABSTRACT:
A barrel, and a hollow cup-shape insert in the front end thereof, forming a capillary space between itself and the barrel. The insert has a closed front end, the tip portions of the insert and the barrel form a ball seat in which the writing ball is positioned, and the capillary space leads to the ball. The rear end of the insert is open and communicates with the main space in the rear portion of the barrel. A flexible bag is positioned in the rear of the barrel, for filling through a filler tube which constantly vents the interior. The main space in the rear portion of the barrel and that in the insert together form a single continuous space, substantially without internal obstruction. The ink is in the form of a main body of fluid, freely flowing, aqueous ink. When the pen is laid on its side, the body of ink communicates with the capillary space, filling it by capillarity action, and that ink feeds by capillary action to the ball. When the pen is held in front-end-down position, the main body of ink flows into the insert, and the ink in the capillary space is thereby free of the main body of fluid ink. When the pen is held in front-end-up position, the main body of ink flows to the rear end of the barrel, and the ink in the capillary space again is held by capillary action and flows by capillary action to the writing ball.
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Bratlie Steven A.
Gallagher Paul H.
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