Patent ID: 6938519
Filing Date: 2005-09-06
Classification: E21B

Abstract:
1. A pipe turning wrench adapted to turn drill pipe, said wrench including a die assembly, a first arm, a second arm pivotable about an axis spaced apart from and parallel to said pipe longitudinal axis, and a die pocket, in one of the wrench first arm and wrench second arm, that is adapted to receive said die assembly, said die assembly being attached to one of said wrench first arm and said wrench second arm, said die assembly including a die having a generally planar pipe facing front having side edges, and a wrench facing rear, and wherein said die is thick on one side and thin on the other side so that said die facing front recedes from one said front side edge to the other said front side edge so that contact between said die facing front and a pipe varies depending upon the diameter of the pipe, and wherein said die assembly further includes means for attaching said die to said die pocket.