Drill pipe spinner

Details Drill pipe spinner Drill pipe spinner

1995-08-08

1997-08-26

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5716, 81 5719, 81 5725, B25B 1700

Patent

active

056600879

ABSTRACT:
A drill pipe spinner is set forth. It is suspended under a hanger and has upper and lower mounting plates. An air motor with cooperative gear box is supported on the upper mounting plate and extends a rotatable shaft through the mounting plate to rotate a driven sprocket. Through the use of suitable sprockets, symmetrically located left and right rollers arc rotated. In addition, the device incorporates an air cylinder which has an extending piston rod which connects by means of a bell crank which clamps the drill pipe.

REFERENCES:
patent: 2536458 (1951-01-01), Munsinger
patent: 2544639 (1951-03-01), Calhoun
patent: 3906820 (1975-09-01), Hauk
patent: 4309922 (1982-01-01), Beckley et al.
patent: 4446761 (1984-05-01), Boyadjieff et al.
patent: 4694712 (1987-09-01), Doss
patent: 5092150 (1992-03-01), Cunningham

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