Patent ID: 7018146
Filing Date: 2006-03-28
Classification: B23B,Y10S,Y10T

Abstract:
1. A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising: a. a generally cylindrical body member having b. a plurality of jaws slidably disposed within said body in communication with said nose section axial bore; c. a nut disposed rotatably about but axially fixed to said body and in driving engagement with said jaws so that rotation of said nut with respect to said body drives said jaws into and out of said nose section axial bore; d. a bearing disposed between said body and said nut; and e. a rust resistant nosepiece secured to said body nose section, said nosepiece having a generally cylindrical sidewall and an end wall extending radially inward therefrom, and f. a nut retaining member axially fixed on said body for preventing movement of said nut toward said nose section of said body member, said nut retainer member having a first portion defining a first radius and a second portion defining a second radius that is larger than said first radius.