Writing implement
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United States of America Patent
Stats
-
Jun 24, 2003
Grant Date -
N/A
app pub date -
Jan 14, 2002
filing date -
Jul 19, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A writing implement for preventing ink from leaking out from a front end of a tip by absorbing much of a change in pressure inside an ink tank, the implement being a direct liquid type writing implement having an ink tank and an ink flowing portion connecting the ink tank and a writing end, a temporary ink reserve part for temporarily holding ink and an air supplying portion for supplying air to the temporary ink reserve part, the temporary ink reserve part being constituted by a temporary ink reserve groove and an ink guide groove, an ink introducing groove at a vicinity of the ink tank constituting a portion of the ink guide groove, a distance from the writing end to an end portion of the temporary ink reserve groove on its ink tank side being larger than a distance from the writing end to the ink introducing groove.
First Claim
Family
International Classification(s)
Cited Art Landscape
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