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Interlocking-jaw-power-tongs

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Interlocking jaw power tongs

Details

Inventors: Buck, David A.;
Assignee:
Primary Examiner: Meislin; D. S.
Assistant Examiner:
Attorney, Agent or Firm: Roy, Kiesel & Tucker

The present invention provides an improved power tong with a body having a rotating assembly. The power tong further has a plurality of jaw members positioned within the rotating assembly with two of the jaw members being pivoting jaws adapted to interlock when in a closed position. In an alternate embodiment, the improved power tong will have a compensating jaw assemble to limit the axial load placed on the tubular member being gripped.

DETAILED DESCRIPTION It is therefore an object of this invention to provide a power tongs tool which does not subject the ring gear to spreading forces.
It is another object of this invention to provide a manner of limiting the axial load on a tubular member when high torque forces are required.
Therefore the present invention provides an improved power tong with a body having a rotating assembly.
The power tong further has a plurality of jaw members positioned within the rotating assembly with two of the jaw members being pivoting jaws adapted to interlock when in a closed position.
In an alternate embodiment, the improved power tong will have a compensating jaw assemble to limit the axial load placed on the tubular member being gripped.

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