Methods and apparatus for make up and break out of tubular...

Details Methods and apparatus for make up and break out of tubular... Methods and apparatus for make up and break out of tubular...

E - Fixed Constructions

21

B

E21B 19/16 (2006.01)

Patent

CA 2680806

A gripping apparatus and a method apparatus for making up and breaking out tubular connections. In one embodiment, the gripping apparatus comprises an outer gear, a plurality of rollers coupled to the outer gear, an inner ring, a passive jaw, and a pair of active jaws pivotably coupled to the inner ring. The active jaws include camming surfaces for positioning, securing, actuating, and retracting the active jaws upon rotation of the outer gear. The gripping apparatus may further include a control switch operable to maintain the gripping apparatus in a make up mode or a break out mode regardless of rotation of the outer gear.

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