Coating implements with material supply – Material flows through porous tool – Wick feed from within reservoir to tool
Patent
1981-02-24
1983-05-10
Coughenour, Clyde I.
Coating implements with material supply
Material flows through porous tool
Wick feed from within reservoir to tool
401135, 401229, B43K 802
Patent
active
043827071
ABSTRACT:
Tubular writing pens of the stylographic type, particularly a felt tip pen. A cylindrical hollow body supports an ink reservoir at one end and a felt tip which extends from the ink reservoir through the front of the hollow body. The tubular body encompasses the writing element, while defining an inner pressure equalization chamber in its outer wall and a longitudinally extending axial groove in its inner wall, exposed throughout its length to the felt tip writing instrument. An intermediate cylindrical piece complementally engages the exterior wall of the cylindrical body, so as to cover the inner pressure equalization chamber and define in its exterior wall an outer pressure equalization chamber, communicant with the inner chamber. An outer sleeve complementally engages the intermediate piece, so as to cover the outer equalization chamber and define at its posterior end a reservoir seat. An ink reservoir cartridge may complementally engage the outer sleeve and the posterior end of the writing body, so as to communicate with the felt tip writing instrument.
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patent: 2919677 (1960-01-01), Mansheim
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patent: 4095907 (1978-06-01), Kuparinen
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patent: 4239408 (1980-12-01), Mutschler
Coughenour Clyde I.
Koh-I-Noor Rapidograph, Inc.
Olsen Warren E.
Semmes David H.
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