Portable pipe tong and method of use

Details Portable pipe tong and method of use Portable pipe tong and method of use

2005-08-23

2005-08-23

Smith, James G. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057340, C081S057390

Reexamination Certificate

active

06931965

ABSTRACT:
A relatively compact portable tong assembly utilizing adaptable jaws for gripping the threaded box and pin ends of adjacent pipe joints without the use of an external support and thus applying final make-up torque or applying initial breakout torque to threaded pipe joints using only a spanner, socket and ratchet or other such hand tools for quickly applying torque to at least one of the tong jaws. An integral means is also provided for accurately measuring the amount of torque being applied to the joints.

REFERENCES:
patent: 443312 (1890-12-01), Bode
patent: 2492470 (1949-12-01), Farkas
patent: 2540553 (1951-02-01), Shobe
patent: 3122952 (1964-03-01), Eliason
patent: 3752016 (1973-08-01), Ballard
patent: 3880024 (1975-04-01), Asada
patent: 4305316 (1981-12-01), Lehman
patent: 5062326 (1991-11-01), Goldschmidt
patent: 5546833 (1996-08-01), Holdeman et al.
patent: 5775183 (1998-07-01), Tavianini
patent: 6634260 (2003-10-01), Smith

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