Extractor tool

Claim 2

An extracting tool for embracing members such as studheads, screwheads, nuts and the like of different sizes and then extracting same comprising a collet, said collet including an annular array of jaws, each jaw having a radially inwardly extending wall structure for simultaneously penetrating said members and receiving material displaced during said penetration, said wall structure including an inverted truncated pyramid-like pointed tooth defined in part by a surface which forms, in part, the forwardmost part of said collet and an opposite surface which receives material of said member which is displaced during the penetration.

Claim 3

An extracting tool comprising a collet and means for tightening said collet about a member such as a studhead or the like wherein said collet has an annular array of pointed teeth which form the leading edge of said collet, which extend beyond the remainder of the collet, and which are the first portions of said collet to contact the studhead or the like, each tooth being pyramiD-like or conical-like in shape and defining with stop walls to the rear of each tooth, a notch which receives material of said member which is displaced by each tooth as the collet is tightened about said member.

Claim 4

An extracting tool comprising a collet and means for tightening said collet about a member such as a studhead or the like wherein said collet has an annular array of pointed teeth which form the leading edge of said collet, which extend beyond the remainder of the collet, and which are the first portions of said collet to contact the studhead or the like, each tooth being pyramiD-like or conical-like in shape and defining with stop walls to the rear of each tooth, a notch which receives material of said member which is displaced by each tooth as the collet is tightened about said member.

Claim 5

An extracting tool for embracing members such as studheads, screwheads, nuts and the like of different sizes and then extracting same comprising a collet, said collet including an annular array of jaws, each jaw having a radially inwardly extending wall structure for simultaneously penetrating said members and receiving material displaced during said penetration, said wall structure including an annular array of pointed teeth at the forward-most portion of said collet and radially outwardly extending undercut and recessed notches defined in part by said teeth, each tooth having an inverted truncated pyramid-like or cone-like pointed shape defined in part by a surface which forms, in part, the forwardmost part of said collet and an opposite surface which receives material of said member which is displaced during said penetration, said opposite surface forming part of said recessed notch to receive said displaced material, and stop walls which together with said teeth define said notches and limit radially inward movement of said teeth, the radially inner parts of said teeth forming the leading edge of said collet which extends beyond the remainder of the collet and being the first portion of said collet to contact said member, and means for tightening said collet about said member.

Claim 6

An extracting tool for embracing members such as studheads, screwheads, nuts and the like of different sizes and then extracting same comprising a collet, said collet including an annular array of jaws, each jaw having a radially inwardly extending wall structure for simultaneously penetrating said members and receiving material displaced during said penetration, said wall structure including an annular array of pointed teeth at the forward-most portion of said collet and radially outwardly extending undercut and recessed notches defined in part by said teeth, each tooth having an inverted truncated pyramid-like or cone-like pointed shape defined in part by a surface which forms, in part, the forwardmost part of said collet and an opposite surface which receives material of said member which is displaced during said penetration, said opposite surface forming part of said recessed notch to receive said displaced material, and stop walls which together with said teeth define said notches and limit radially inward movement of said teeth, the radially inner parts of said teeth forming the leading edge of said collet which extends beyond the remainder of the collet and being the first portion of said collet to contact said member, and means for tightening said collet about said member.