Apparatus for handling tubulars and method

Details Apparatus for handling tubulars and method Apparatus for handling tubulars and method

2006-03-21

2006-03-21

Hall, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057330, C081S057150, C081S057160, C081S057210, C081S057350, C081S057240, C081S057170, C081S057400, C081S057000, C081S056000, C074S089170, C074S422000

Reexamination Certificate

active

07013759

ABSTRACT:
A device for torquing a tubular connection. The device comprises an upper assembly having an upper jaw member, a lower assembly having a lower jaw member, an upper gear for advancing the upper jaw member, and a lower gear for advancing the lower jaw member. The upper jaw member includes a first jaw operatively associated with a first rack, a second jaw operatively associated with a second rack, and a third jaw operatively associated with a third rack. The lower jaw member includes a fourth jaw operatively associated with a fourth rack, a fifth jaw operatively associated with a fifth rack, and a sixth jaw operatively associated with a sixth rack. A method of torquing a first tubular with a second tubular is also disclosed.

REFERENCES:
patent: 3902385 (1975-09-01), Haby
patent: 4648292 (1987-03-01), Haynes et al.
patent: 4869137 (1989-09-01), Slator
patent: 5000065 (1991-03-01), Haynes
patent: 5823074 (1998-10-01), Ahlstone
patent: 6829967 (2004-12-01), Kemp

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