Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nehad Bahbahani0
Date of Patent
January 26, 2010
0Patent Application Number
113709230
Date Filed
March 9, 2006
0Patent Primary Examiner
Patent abstract
An adjustable pencil for varying the pressure on a piece of lead includes a cylindrical barrel, and a guide tube containing a piece of lead disposed in the barrel. A coil spring, a rectangular channel with a plurality of stops and a follower compresses the spring for increasing or decreasing the longitudinal force applied to the lead as it engages a writing surface. A knob rotates the guide tube to open or close a pair of jaw like grips for maintaining a pre-selected length of lead extending from the tip of the pencil.
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