Coating implements with material supply – Material flows through porous tool – With removable cap for tool
Patent
1989-12-15
1991-10-29
Apley, Richard J.
Coating implements with material supply
Material flows through porous tool
With removable cap for tool
401213, 401243, D19 57, B43K 500, B43K 900
Patent
active
050611054
ABSTRACT:
A removable cap attached to a writing instrument in an insertion manner for preventing ink from evaporating from the writing instrument, includes: a hollow cylindrical cap main body provided with a trunk portion in which at least one ventilating hole is provided and a hollow cylindrical inner cap fixedly mounted in the cap main body. The cap having been detached from the writing instrument permits open air to axially flow through the interior space of the cap through a front axial opening of the cap ventilating holes in the inner cap a space defined between the inner cap and the cap main body and a ventilating hole formed in the peripheral wall of the cap main body at a position under the pocket clip of the marking pen.
REFERENCES:
patent: 4844642 (1989-07-01), Inaba et al.
patent: 4915529 (1990-04-01), List
Apley Richard J.
Crosby D. F.
Mitsubishi Pencil Co. Ltd.
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