Interlocking jaw power tongs

Details Interlocking jaw power tongs Interlocking jaw power tongs

1996-10-11

1998-10-13

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 572, 81 5721, B25B 1350

Patent

active

058196048

ABSTRACT:
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.

REFERENCES:
patent: 2544639 (1951-03-01), Calhoun
patent: 3799009 (1974-03-01), Guier
patent: 4084453 (1978-04-01), Eckel
patent: 4089240 (1978-05-01), Eckel
patent: 4404876 (1983-09-01), Eckel
patent: 4546681 (1985-10-01), Owsen
patent: 4631987 (1986-12-01), Buck
patent: 4709599 (1987-12-01), Buck
patent: 4759239 (1988-07-01), Hamilton et al.
patent: 4811635 (1989-03-01), Falgout, Sr.
patent: 5150642 (1992-09-01), Moody et al.
patent: 5291808 (1994-03-01), Buck
patent: 5542318 (1996-08-01), Wesch, Jr.

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