Pipe make/break apparatus with gripping jaws and adjustable...

Details Pipe make/break apparatus with gripping jaws and adjustable... Pipe make/break apparatus with gripping jaws and adjustable...

B - Operations, Transporting

25

B

B25B 13/50 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2377457

A pipe making and breaking apparatus having top, middle and bottom wrenches connected to a frame. A torquing cylinder operatively extends between the middle wrench and the frame and when actuated through one or more torquing cycles causes an upper pipe to make (top and middle wrenches) or break (middle and bottom wrenches) relative to a lower pipe. A grip hold actuator maintains the middle wrench in the gripping position continuously during the making torquing cycles. A continuous chain spinner above the top wrench spins the top pipe to make a position or away from a make position. The spinner can be a stand alone unit or can hang freely in the derrick or can be part of the make/break apparatus. A spinner drive chain motor when pressurized and when an oiler button is actuated causes lubricant to be sprayed out a nozzle on the (moving) chain. Windows (guide gates) and/or guide posts direct the chain so as to not bunch up against the casing sprockets.

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