Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1980-07-31
1982-09-14
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 5716, B25B 1700
Patent
active
043489206
ABSTRACT:
A power driven tool for making and breaking threaded connections in a well pipe is movable between a central position of alignment with the well axis, a second position offset from the well axis and above a mousehole, and a third retracted or inactive position offset at a side of the well axis opposite that at which the mousehole is located. The tool preferably includes a carriage which rolls along the rig floor between its different positions, desirably on spaced tracks located at opposite sides of the main axis of the well and the mousehole, with the pipe contacting mechanism being mounted for upward and downward movement relative to the carriage and for pivotal movement to an inclined position for alignment with an inclined mousehole, and preferably including an upper well pipe spinner and a lower torque wrench assembly.
REFERENCES:
patent: 2000221 (1935-05-01), Dawson
patent: 2792198 (1957-05-01), Braun
patent: 2838282 (1958-06-01), Colquitt
patent: 2898792 (1959-08-01), Fox et al.
patent: 3629927 (1971-12-01), Palmer
patent: 3760658 (1973-09-01), Guier
patent: 3902385 (1975-09-01), Haby
patent: 3921473 (1975-11-01), Boyadjieff et al.
patent: 3961319 (1976-06-01), Boyadjieff
patent: 4023449 (1977-05-01), Boyadjieff
patent: 4049065 (1977-09-01), Walter
patent: 4246809 (1981-01-01), Keast et al.
Varco's Iron Roughneck, Varco Oil Tools, 4/80, pp. 1-4.
Green William P.
Jones Jr. James L.
Varco International, Inc.
LandOfFree
Well pipe connecting and disconnecting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well pipe connecting and disconnecting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well pipe connecting and disconnecting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2150538