Patent ID: 8161846
Filing Date: 2012-04-24
Classification: E21B

Abstract:
1. A device for rotating a tubular comprising: a body; an arm pivotally coupled to said body, said arm having a cam roller coupled thereto; an actuator coupled to said arm, said actuator operable to pivot said arm relative to said body between an open position and a closed position; wherein, in the closed position, the cam roller engages the tubular, and wherein, in the open position, the cam roller is disengaged from the tubular; wherein said arm comprises a slot formed therein, the slot having a forward end and a rearward end, and wherein said actuator is coupled to said arm by a pin slideably disposed within the slot; wherein said actuator is operable to slide the pin within the slot toward the forward end, whereby said arm pivots toward the closed position, and toward the rearward end, whereby said arm pivots toward the open position; a tensioning member pivotally coupled to the pin.