Patent ID: 8511692
Filing Date: 2013-08-20
Classification: B23B,Y10S,Y10T

Abstract:
1. A chuck for securing a tool with a shank to a manual or powered driver having a drive shaft, said chuck comprising: a. a body having a nose section and a tail section, said nose section having an axial bore formed therein; b. a plurality of jaws movably disposed with respect to said body in communication with said axial bore, said jaws defining a first plurality of threads thereon; c. a nut defining a plurality of threads on an inner circumference thereof, said nut being in threaded engagement with said jaws; d. a sleeve rotatably mounted about said body and in driving engagement with said nut so that rotation of said sleeve in a closing direction moves said jaws toward said axial bore and rotation of said sleeve in an opening direction moves said jaws away from said axial bore; e. a planar first ring; and f. a second ring that is rotatable relative to said nut over a limited arc, one of said first ring and said second ring defining a ratchet and the other of said first ring and said second ring defining at least one tab thereon, said at least one tab being biased toward said ratchet so that,