Drillpipe spinner

Details Drillpipe spinner Drillpipe spinner

2006-02-21

2006-02-21

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057160, C081S057240, C081S057340

Reexamination Certificate

active

07000502

ABSTRACT:
The invention relates to an improved drill pipe spinner. The improved spinner may be used as a stand-alone piece of pipe handling equipment or may be used in an Iron Roughneck. The spinner comprises a pair of clamping arms that are movable between an open position and a closed position, wherein in the closed position, the arms will clamp about a pipe to be made up or broken out and in the open position, the spinner may be moved away from or towards the pipe. The arms are preferably moved between the open and closed positions by a hydraulically actuated clamping cylinder. Attached to the distal ends of each arm is a roller bracket. The roller brackets are preferably attached to the clamping arms by a roller bracket pin. Each roller bracket includes a pair of drive roller assemblies, which together form the spinning unit. Each drive roller assembly preferably comprises a pair of drive rollers, with each roller rotated by a pair of hydraulic motors. If the rollers of the spinner have to be repaired, serviced or replaced, the arm brackets are easily removed by simply pulling the roller bracket pin and removing the roller bracket. A new roller bracket may then be picked up, aligned with and pinned to the arm by reinserting the roller bracket pin. The spinning unit can easily be removed and replaced on the rig floor by changing out the roller bracket.

REFERENCES:
patent: 3392609 (1968-07-01), Bartos
patent: 3892140 (1975-07-01), Fox et al.
patent: 3892148 (1975-07-01), Wiley
patent: 4221269 (1980-09-01), Hudson
patent: 4381685 (1983-05-01), Brooks
patent: 4425827 (1984-01-01), Wells
patent: 4446761 (1984-05-01), Boyadjieff et al.
patent: 4603464 (1986-08-01), Smith, Jr. et al.
patent: 4694712 (1987-09-01), Doss
patent: 4774861 (1988-10-01), Hamilton et al.
patent: 4895056 (1990-01-01), Schulze-Beckinghausen
patent: 5660087 (1997-08-01), Rae
patent: 6065372 (2000-05-01), Rauch
patent: 6253845 (2001-07-01), Belik
patent: 6505531 (2003-01-01), Stogner
patent: 2003/0164071 (2003-09-01), Moe et al.
patent: 2004/0103515 (2004-06-01), Penman
patent: 2005/0076744 (2005-04-01), Pietras et al.
patent: 2387186 (2003-08-01), None
patent: WO 01/81047 (2001-11-01), None

Affiliated with

Also associated with

Rating

Drillpipe spinner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drillpipe spinner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drillpipe spinner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3686025