Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Chen0
Date of Patent
November 15, 2005
0Patent Application Number
108783740
Date Filed
June 29, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved structure tape rule in which the blade spool has space at one side of one-piece construction for containing the coiled spring, enabling the blade spool to accommodate the winding of a ruler blade that is approximately two to three times longer than a blade spool in a same diameter sized spatial area and, furthermore, the rewinding of the ruler blade is impelled by spring torque to thereby enhance tape ruler utility and performance.
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