TIP FOR WRITING INSTRUMENT
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United States of America Patent
Stats
-
N/A
Issued Date -
Aug 6, 2009
app pub date -
Nov 26, 2008
filing date -
Jan 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention provides a tip for a writing instrument includes: a tip main body; a ball seat formed at the front end of the tip main body, communicated with the ink channel, and having a chamfer on the inner side thereof; a ball retained with a portion exposed, in the ball seat; and an elastic member disposed in the ink channel of the tip main body and always applying force to the ball in the exposure direction, in order to keep the tip clean and achieve a smooth line by preventing ink from remaining at the front end of the tip.
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Family
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Cited Art Landscape
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