Knock type mechanical pencil connection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 21, 1989
Grant Date -
N/A
app pub date -
Oct 26, 1987
filing date -
Oct 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The lead reservoir and feed mechanism of a knock type mechanical pencil is secured to the tubular barrel in which it is housed by a resilient locking sleeve positioned in a groove near the front of the feed mechanism and a spring compressed between a rearwardly facing internal abutment on the feed mechanism. The spring urges the lead reservoir and feed mechanism rearwardly into the barrel to a position where an external flange on the locking sleeve abuts the front end of the barrel.
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Cited Art Landscape
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