B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 13/50 (2006.01) E21B 19/16 (2006.01)
Patent
CA 2706500
A power tong for rotating a pipe, the power tong comprising: a frame having a pair of arcuate front portions defining a throat for receiving the pipe; a cage plate assembly mounted for rotation on the arcuate front portions about a center of rotation, the cage plate assembly having an opening that is alignable with the throat; a ring gear mounted for rotation within, and supported by, the cage plate assembly about the center of rotation, the ring gear having an opening that is alignable with the throat; the ring gear cooperating with jaws mounted on the cage plate assembly for gripping the pipe upon rotation of the ring gear.
Feigel Kurt R. Jr.
Pohnert Vladimir G.
Lambert Intellectual Property Law
Universe Machine Corporation
LandOfFree
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