Patent ID: 6540236
Filing Date: 2003-04-01
Classification: B23B,Y10S,Y10T

Abstract:
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:a generally cylindrical body having a tail section configured to rotate with said drive shaft; an inner sleeve having a central bore and a threaded outer circumferential surface, wherein said body is received within said central bore; an annular nut having a threaded interior surface, wherein said annular nut is received about and threadedly engages said outer surface of said inner sleeve so that relative rotation between said inner sleeve and said annular nut moves said annular nut and said inner sleeve axially with respect to each other; a plurality of jaws disposed radially reciprocally with respect to an axis of said chuck, wherein each said jaw defines a tool gripping surface facing said axis and wherein said annular nut is in axially driving communication with said jaws; and an outer gripping sleeve, wherein said outer gripping sleeve is disposed rotatably about said body, disposed rotatably about said annular nut, and disposed about said inner sleeve, and wherein the entire said annular nut is radially inward of an outer gripping surface of said outer gripping sleeve.