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US 11,378,218 B2Granted
Cable puller and method
AssigneeTT Technologies, Inc.
InventorMichael Tjader
Life of this patent
Estimating the term…
Abstract
A cable puller and associated methods are shown. Useful example methods include pipe bursting using cable pullers as shown. Cable pullers and methods shown provide a mechanical advantage that increases an amount of cable pulled in one cycle. Selected examples are shown that include a pulley located on a distal end of a moving portion of an extending and contracting beam. The pulley and the mechanical advantage it supplies helps to improve the efficiency of the cable puller and reduce manufacturing cost of the cable puller.
Claims17
A cable pulling system, comprising:
- a cable pulling device, including:
- an extending and contracting beam including a first end portion and a second end portion;
- a soil reaction plate coupled to the first end portion;
- a cable pathway located on the first end portion to direct a cable over the first end portion, such that when in operation, the cable pathway moves back and forth as the beam extends and contracts;
- and
- a single cyclic cable gripper attached to the second end portion, wherein the single cyclic cable gripper is configured to pull a cable through a length of pipe by gripping the cable with the gripping jaws on a beam extension, and releasing the cable on a beam contraction.
3 more elements
A cable pulling system, comprising:
- a cable pulling device, including:
- an extending and contracting beam including a first end portion and a second end portion;
- a soil reaction plate coupled to the first end portion;
- a cable pathway located on the first end portion to direct a cable over the first end portion, such that when in operation, the cable pathway moves back and forth as the beam extends and contracts;
- a single cyclic cable gripper attached to the second end portion, wherein the single cyclic cable gripper is configured to pull a cable through a length of pipe by gripping the cable with the gripping jaws on a beam extension, and releasing the cable on a beam contraction;
- a bursting head;
- and
- a cable coupled between a front end of the bursting head and the cable pulling device.
5 more elements
Dependencies are inferred from the claim text.