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US 11,346,464 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 pipe removal system, comprising:
- a deforming die, including one or more bends such that when pulled through a pipe to be replaced the pipe is loosened, but not ruptured;
- a lug to couple to a distal end of a pipe to be removed;
- a collar to couple to a proximal end of the pipe to be removed;
- a first cable to couple to the lug;
- a second cable to couple to the collar;
- and
- a dual cable puller to pull both the first cable and the second cable in parallel to apply force to the pipe to be removed at both the distal end and the proximal end at the same time.
4 more elements
A pipe removal system, comprising:
- a deforming die, including one or more protrusions such that when pulled through a pipe to be replaced the pipe is loosened, but not ruptured;
- a lug to couple to a distal end of a pipe to be removed;
- a collar to couple to a proximal end of the pipe to be removed;
- a first cable to couple to the lug;
- a second cable to couple to the collar;
- and
- a dual cable puller to pull both the first cable and the second cable in parallel to apply force to the pipe to be removed at both the distal end and the proximal end at the same time.
4 more elements
A pipe removal system, comprising:
- a dual cable puller to pull both a first cable and a second cable in parallel, wherein the dual cable puller is configured to control a pulling force on the first cable separately from a pulling force on the second cable;
- and
- a leading cable puller to couple to a proximal end of a pipe to be removed, wherein the leading cable puller includes;
- a first cable attachment;
- and
- a passage to allow the second cable to pass through to a distal end of the pipe to be replaced.
3 more elements
Dependencies are inferred from the claim text.