Patent ID: 8636057
Filing Date: 2014-01-28
Classification: E21B,F16B,F16D,Y10T

Abstract:
1. A shear coupling assembly for driveably connecting between a downhole pump and a downhole end of a rod string comprising: a first coupling member, adapted for connection to one or other of the pump or rod string, having a first body and an axial bore formed therethrough, at least a portion of the axial bore having a female profile formed therein; a second coupling member, adapted for connection to one or other of the pump or rod string, having a second body, an insert member extending axially therefrom, a shear neck connecting between the second body and the insert member, and a male profile formed on the second body adjacent the shear neck, the male profile of the second coupling member mating with the female profile of the first coupling member and driveably engaging the first and second coupling members in a radial connection for co-rotation therebetween; and a locking member inserted into the axial bore of the first coupling member, the locking member engaging between the axial bore of the first coupling member and the insert member of the second coupling member and providing an axial connection therebetween.