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US 11,674,616 B2Granted
Device and method for pulling pipe
AssigneeTT Technologies, Inc.
InventorJohn A. Olander
Life of this patent
Estimating the term…
Abstract
A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.
Claims15
A method of pipe extraction, comprising:
- coupling a first cable to a first portion of a pipe buried in the ground;
- coupling a second cable to a second portion of the pipe;
- and
- pulling both the first cable and the second cable in parallel to extract the pipe from the ground, wherein a pulling force of on the first cable is controlled separately from a pulling force on the second cable.
1 more element
A method of pipe extraction, comprising:
- coupling a first cable to a first portion of a pipe buried in the ground;
- coupling a second cable to a second portion of the pipe;
- winding both the first cable and the second cable around a drum in parallel to extract the pipe from the ground;
- and
- winding extracted pipe around the drum.
2 more elements
Dependencies are inferred from the claim text.