Cap with air passage for a writing instrument
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United States of America Patent
Stats
-
Jun 27, 1995
Grant Date -
N/A
app pub date -
Mar 8, 1994
filing date -
Jul 28, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cap is provided for a writing instrument to eliminate a potential threat to safety when swallowed. The cap permits easy assembly of an inner cap into an outer shell without using any tools. The cap has an outer shell and a tip seal member (inner shell) fitted in the outer shell to form an air passage therebetween. The outer shell has a rectangular recess at one end and an annular projection on the inner surface adjacent to a bottom edge of the rectangular recess, and snap-fit projection is engageable with a barrel of the writing instrument. The tip seal member has a coupling device for holding a clip, a plurality of first and second projections frictionally engageable with the inner surface of the outer shell so that when the coupling device of the tip sealing member is press-fitted to the rectangular recess, the first projections are engaged with the annular projection of the outer shell.
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Family
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Cited Art Landscape
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