Internal pipe wrench

Details Internal pipe wrench Internal pipe wrench

B - Operations, Transporting

25

B

81/28

B25B 13/54 (2006.01)

Patent

CA 1161670

INTERNAL PIPE WRENCH Abstract of the Disclosure An internal pipe wrench adapted to engage the inner walls of a pipe for applying torque thereto. The wrench com- prises a rotatable mandrel which is generally triangular in cross-section and three cooperating gripping jaws movable into gripping engagement with the pipe upon rotation of the mandrel. The gripping jaws are retained in operable proximity with the mandrel by means of a yieldably resilient rubber or plastic material and are uniformly configured so that upon rotation of the mandrel in either direction, the leading edge of the gripping jaws will move into positive gripping engagement with the inner walls of the pipe.

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