Raymond Allen Mccarthy

US Patent:

59568313, Sep 28, 1999

Filed:

Aug 21, 1997

Appl. No.:

8/918518

Inventors:

Raymond G. McCarthy - Redlands CA
John J. Henry - Fontana CA

International Classification:

B23P 1904

US Classification:

29263

Abstract:

An improved forcing tool for extracting a cylindrical article from a socket includes a frame having front and rear walls; a screw threadingly engaging the rear wall in alignment with a recess that extends through the front wall; and a collet removably rotatable on the screw for gripping and extracting the article. The collet has a body with a forwardly facing cavity, a plurality of cylindrical pockets in side walls of the cavity; gripping wedges in respective ones of the pockets, the pockets and outside surfaces of the wedge cylindrical portions being inclined for drawing the wedges together in response to forward movement thereof relative to the body; and a set screw threadingly engaging the body and projecting inwardly against one of the wedges for adjusting a spacing of the wedges. The improvement includes a rigid retainer fastened to the body for rigidly limiting axial movement of the wedges by contact with the leg portions. A compression spring biases the wedges radially outwardly and forwardly in the respective pockets, the spring extending through a guide slot of the body for flexibly retaining the wedges in rotational alignment.