Patent ID: 6594881
Filing Date: 2003-07-22
Classification: E21B,Y10T

Abstract:
A method of manufacturing a torque-limiting device for use in conjunction with transmitting torque to a subterranean drill bit, comprising:constructing a first connector having a first connecting portion at a distal end thereof and a first interface portion at a proximal end thereof; constructing a second connector having a second connecting portion at a proximal end thereof and a second interface portion at a distal end thereof proximate the first interface portion; positioning the first connector and the second connector generally axially opposite each other; and providing a releasable structure proximate the first and second interface portions, the releasable structure configured to retain the first and second connectors against mutual rotational movement at selected relative rotational positions of the first and second connectors until a torque exceeding a predetermined torque is applied between the first connector and the second connector.