Patent ID: 8464613
Filing Date: 2013-06-18
Classification: E21B

Abstract:
1. A coupling extractor for engaging and rotating a coupling having an inside wall that is generally cylindrical in shape, comprising: a shaft having a longitudinal axis and opposing ends; an extractor on at least one end of the shaft, wherein the extractor has a length and an outermost gripping surface along its length, and wherein the gripping surface projects radially with respect to the longitudinal axis of the shaft for biting and/or cutting into the inside wall of the coupling; a radial element fixed directly or indirectly to the shaft between the opposing ends for engaging with and/or resting upon a jaw assembly of a sucker rod tong, wherein the radial element projects radially outwardly with respect to the longitudinal axis of the shaft; and a shield fixed directly or indirectly to the shaft, wherein the shield surrounds the extractor.