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US 11,236,852 B2Granted
Winch boom and method for trenchless replacement
AssigneeTT Technologies, Inc.
InventorMichael Tjader
Life of this patent
Estimating the term…
Abstract
A pipe replacement system and method are shown. Configurations are shown that include a pulley that does not damage a bursting tool, as the bursting tool is pulled into a pit. Configurations are also shown that include a boom that does not need an extraction cage for the bursting tool.
Claims13
A pipe replacement system, comprising:
- a boom, having a first end to couple to a winch, and a second end to deploy in a pit;
- at least one reaction plate pivotally coupled to the second end of the boom, and rotatable about a first pulley rotation axis, the first pulley coupled to the second end of the boom;
- wherein the first pulley includes a bursting tool guide surface having a diameter greater than a cable diameter, the diameter being sized to substantially match a bursting tool diameter;
- and
- a second pulley located at the first end of the boom.
2 more elements
A pipe replacement system, comprising:
- a boom, having a first end to couple to a winch, and a second end to deploy in a pit;
- at least one reaction plate pivotally coupled to the second end of the boom, and rotatable about the second end of the boom;
- a mechanism to select and fix an angle from more than two possible angles between the reaction plate and the boom;
- a first pulley coupled to the second end of the boom, wherein the first pulley includes a bursting tool guide surface having a diameter greater than a cable diameter, the diameter being sized to substantially match a bursting tool diameter;
- and
- a second pulley located at the first end of the boom.
3 more elements
Dependencies are inferred from the claim text.