Mechanical pencil
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United States of America Patent
Stats
-
Mar 16, 2004
Grant Date -
Oct 24, 2002
app pub date -
Oct 3, 2001
filing date -
Mar 30, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mechanical pencil has a tubular member having a front end and a rear end. A slide member is disposed at the front end of the tubular member for axial sliding movement therein. The slide member has a lead passageway for receiving a pencil lead. A lead advancement mechanism undergoes axial movement within the tubular member and has a chuck body for undergoing advancing movement to advance the pencil lead through the lead passageway of the slide member and toward the front end of the tubular member and for undergoing retracting movement toward the rear end of the tubular member. The slide member is disposed in frictional engagement with the chuck body for retracting movement therewith.
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