Pipe joint make-up and break-out tool
OwnerMarvin Q. Brooksinventor
Life of this patent
Estimating the term…
Abstract
A tool (10) for rotating a length of pipe (72) to make or break a pipe joint is provided. A frame (12) supports the tool (10) on a surface. A carrying handle (30) is attached to the frame (12) for moving to and from the site where it is to be used. A motor (28) is attached to the frame (12) and drives a rotating drum (32) which is rotatably secured in the frame (12). The rotating drum (32) is driven by the motor (28) through a gear train (34 and 36). The rotating drum (32) has a serrated surface (38) for engaging and spinning the pipe (72). A C-shaped pipe embracing means (40) is pivotally attached to the frame (12) with pivot pin (42). Idler rollers (44) are rotatably mounted in the C-shaped pipe embracing means (40) and clamp the pipe (72) firmly in contact with the serrated surface (38) of the rotating drum (32).
Claims5
A pipe tool for making or breaking a pipe joint without latching of the tool around the pipe, which tool comprises:
- a frame adapted to be positioned in proximity to the pipe, said frame including an aperture;
- a rotating drum vertically mounted to said frame for engaging the pipe, said drum being mounted for rotation in first and second directions to thereby selectively rotate the pipe in first and second directions;
- an arcuate pipe embracing member having first and second ends, said arcuate pipe embracing member being removably and reversibly pivotally mounted at said first end thereof to said frame for clamping the pipe aganist said rotating drum;
- mounting means received by said frame aperture for mounting said arcuate pipe embracing member at said first end thereof to said frame, such that said arcuate pipe embracing member engages a first side of the pipe and pivots about said mounting means for rotating the pipe in a first direction while said drum rotates in said first direction;
- said mounting means being removable to permit said arcuate pipe embracing member to be removed from said frame and reversed for mounting said first end thereof to said frame with said mounting means to allow said arcuate pipe embracing member to engage a second side of the pipe oppostie said first side of the pipe to thereby rotate the pipe in a second direction opposite said first direction while said drum rotates in said second direction;
- first roller means mounted to said arcuate pipe embracing member second end for engaging the pipe at a position opposite said position of engagement with said drum;
- and
- second roller means mounted to said arcuate pipe embracing member between said first and second ends thereof to engage the pipe and eliminating the need for means to clamp the arcuate pipe embracing member to the frame to oppose pivotal movement of the arcuate pipe embracing member when said drum is rotated.
Dependencies are inferred from the claim text.