Patent ID: 6195862
Filing Date: 2001-03-06
Classification: B25B,F16L,Y10T

Abstract:
An improved tubing disconnect tool for de-coupling an annular tube telescoping around connecting to a connection nipple jutting from a planar surface including cooperating, semi-annular, `clamshell` heads located at the distal ends of two coupled shanks pivoting in a pivot plane about a pivot axis oriented for closing together around a stem of the connection nipple forming a cylindrical annular tool body having a inner bore of a diameter at most equal to that of the stem of the connection nipple, and a stepped outer diameter with a larger diameter annular base dimensioned for abutting against an end of the tube telescoping around connected to the connection nipple, and an extending, smaller diameter engagement/working tip dimensioned for slipping/wedging into an annular junction space between the end of the telescoping tubing and the stem of the connection nipple, the improvement comprising(i) an acute angular relationship between a longitudinal axis defined by the annular body formed by the closed together `clamshell` heads, the pivot plane and the pivot axis of the coupled shanks in a direction along the longitudinal axis moving from the larger annular base out the extending, smaller diameter engagement/working tip of the formed annular tool body,whereby, an acute angular relationship exists between the pivoting shanks extending from the larger diameter annular base of the formed tool body and the stem of the connection nipple.