Patent ID: 9695649
Date: 2017-07-04
CPC Classifications: E21B,F16L

Claim:
1. A pipe joint for use in joining tubular members comprising: a box formed in an end of a first tubular member, the box formed in the interior surface of the first tubular member, the box including internal threads and internal lands, the internal threads positioned in radial segments and interrupted by the internal lands, the lands being generally flat cylindrical segments having an inner diameter larger than the largest outer diameter of the largest thread; and a pin formed in an end of a second tubular member, the pin formed in the exterior surface of the second tubular member, the pin including external threads and external lands, the external threads positioned in radial segments and interrupted by the external lands, the lands being generally flat cylindrical segments having an outer diameter smaller than the smallest outer diameter of the smallest thread; the widths and positions of the external threads of the pin positioned to correspond with those of the internal lands of the box, and the widths and positions of the external lands of the pin positioned to correspond with those of the internal threads of the box when the box is inserted into the pin; and the external threads of the box and the internal threads of the pin adapted to mesh and tighten the box to the pin.