Tool for installing a pipeline under a structure

Details Tool for installing a pipeline under a structure Tool for installing a pipeline under a structure

1997-08-07

1999-02-23

Schoeppel, Roger J.

Boring or penetrating the earth

With means to simultaneously feed and rotate tool from a...

Rotary drive for relatively advancing feed screw

175122, 175171, 175203, E21B 302

Patent

active

058734210

ABSTRACT:
A tool for installing an underground pipeline below an existing structure such as a sidewalk or driveway. The tool consists of a steel casing, an auger within the casing, a soil drilling bit at the end of the auger, and an hydraulic motor for driving the auger. A selected length of plastic or steel pipe is slid onto the casing before drilling. After the drilling is completed, the casing, auger, and auger bit are withdrawn from the soil, leaving the pipe length embedded in the soil.

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patent: 3682261 (1972-08-01), Bird
patent: 3902322 (1975-09-01), Watanabe
patent: 4124082 (1978-11-01), Garver
patent: 4553612 (1985-11-01), Durham
patent: 4790395 (1988-12-01), Gack et al.
patent: 5355966 (1994-10-01), Mathis

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