The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Aug. 17, 2001
Clifford W. Allen, III, Lexington, KY (US);
Theodore P. O'Canna, Versailles, KY (US);
Marshall B. Reynolds, Jr., Lexington, KY (US);
Lexair, Inc., Lexington, KY (US);
Abstract
Each of a plurality of passages in a fixture has a piston movable therein and cooperating with a collet therein to simultaneously move each collet to its workpiece retaining position and to release each collet from its workpiece retaining position. A recess in the bottom of the fixture supports a locking nut for each passage. Each locking nut has a circular passage extending therethrough to receive an end of the collet having threads on its outer surface. The circular passage has threads of the same pitch but the threads have an interrupted portion in the circumferential and axial directions. The locking nut has a first portion movable relative to a second portion to take up the pitch clearance in the threads on the collet due to the interrupted portion of threads in the circular passage to prevent rotation of the collet prior to the piston moving the collet to its workpiece retaining position.