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US 4,905,773 AGranted
Self-propelled subsoil penetrating tool system
AssigneeUnderground Technologies, Inc.
InventorFrank R. Kinnan
Life of this patent
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AssigneeUnderground Technologies, Inc.
InventorFrank R. Kinnan
Estimating the term…
A fluid-operated self-propelled subsoil penetrating tool of the type including an elongated housing member having a penetrating nose portion capable of ejecting a jet of liquid under high pressure to break up and disrupt the subsoil adjacent such nose portion followed by a two-component hammering of such soil to displace and compact same as the tool advances. Remotely-operated steering mechanisms control the path of the tool while remotely-read instruments denote the position, depth, direction and attitude of the tool. A trailing umbilical cord provides all motive and operational fluids and electrical power while transmitting instructions and data between the tool and the remote control station. A unique internal structure reduces the rotation of the tool as it advances and provides for the reverse movement of the tool and electrical supplies through the bore created by the movement of the tool through the subsoil.
In a fluid-operated self-propelled subsoil penetrating tool, a boring assembly comprising:
In a fluid-operated self-propelled subsoil penetrating tool, a boring assembly comprising:
The method of boring through a subsoil comprising the steps of ejecting outwardly a controlled pattern jet of viscous fluid from the nozzle of a fluid-operated self-propelled subsoil penetrating tool to disturb and distribute the subsoil ahead of and adjacent said tool;
Dependencies are inferred from the claim text.