Cap for writing instrument

Details Cap for writing instrument Cap for writing instrument

1996-07-23

1998-06-09

Bratlie, Steven A.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401202, 401247, B43K 900

Patent

active

057624356

ABSTRACT:
A writing instrument includes a body, a writing tip projected from a tip end of the body, an ink supplying mechanism having low-viscosity ink contained therein for supplying the ink to the writing tip, the ink supplying mechanism being incorporated in the body and connected to the writing tip, and at least one ventilating clearance provided between the writing tip and the tip end of the body for facilitating the supplying of the ink to the writing tip. A cap for the writing instrument includes a cap body and a seal member provided in the cap body, the seal member being formed of elastic material. When the writing instrument is coupled with the cap, the seal member is tightly fitted on the tip end of the writing instrument body, whereby the writing tip and the ventilating clearances are completely sealed by the seal member.

REFERENCES:
patent: 2958085 (1960-11-01), Matschkal
patent: 4643605 (1987-02-01), Iwasaki

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