Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1998-06-02
2000-05-23
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 5733, 81 572, B25B 1700
Patent
active
060653728
ABSTRACT:
A motorized wrench for spinning together (or apart) lengths of drill pipe as typically used in water well drilling. A single motor is connected by a pair of drive chains to two toothed drive rollers to spin the rollers and, thus, spin drill pipe engaged against them. The pipe is so engaged by means of a smooth idler roller within a pivot arm driven open or closed by an air ram. The invention is typically supported via light wire cable from a drill rig mast and when so supported is fast and easy to place, operate, and remove. The preferred configuration of the device operates on hydraulic power and compressed air, both of which are normally present on drill rigs.
REFERENCES:
patent: 1925970 (1933-09-01), Pennington
patent: 2400712 (1946-05-01), Prather et al.
patent: 2523159 (1950-09-01), Stone
patent: 2544639 (1951-03-01), Calhoun
patent: 2746329 (1956-05-01), Paget
patent: 2928301 (1960-03-01), Beeman et al.
patent: 3122211 (1964-02-01), Wilson et al.
patent: 3308691 (1967-03-01), Guier
patent: 3392609 (1968-07-01), Bartos
patent: 3521509 (1970-07-01), Duke et al.
patent: 3774481 (1973-11-01), Goodman
patent: 4178817 (1979-12-01), Gibson
patent: 4221269 (1980-09-01), Hudson
patent: 4381685 (1983-05-01), Brooks
patent: 4774861 (1988-10-01), Hamilton et al.
patent: 5351582 (1994-10-01), Snyder et al.
patent: 5660087 (1997-08-01), Rae
patent: 5791206 (1998-08-01), Daigle et al.
Pedersen Barbara S.
Pedersen Ken J.
Smith James G.
Wilson Lee
LandOfFree
Power wrench for drill pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power wrench for drill pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power wrench for drill pipe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1829110