Writing implement

Details Writing implement Writing implement

B - Operations, Transporting

43

K

B43K 7/02 (2006.01) B43K 7/08 (2006.01)

Patent

CA 2250440

Ink and a follower advancing with consumption of the ink are stored directly in the inside of a barrel having a pen point at its forward end. An outer tail plug constituted by a closed-end cylinder is fitted to a rear outer surface of the barrel. An air course is formed between the rear outer surface of the barrel and an inner surface of the outer tail plug to communicate with the inside of the barrel through a rear end aperture portion of the barrel. At least one air hole is provided ahead of the rear end aperture portion of the barrel to make the air course communicate with the outside air.

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