Technique for providing an underground tunnel utilizing a powere

Details Technique for providing an underground tunnel utilizing a powere Technique for providing an underground tunnel utilizing a powere

1986-05-22

1989-04-18

Massie, Jerome W.

Boring or penetrating the earth

Automatic control

Of boring means including a below-ground drive prime mover

175 45, 175 62, 175 67, 175162, 173 6, 173 12, E21B 718, E21B 726, E21B 4400

Patent

active

048218154

ABSTRACT:
A technique for providing a continuous underground tunnel between first and second spaced-apart points and for installing new cable, pipe or conduit is disclosed herein. This technique utilizes a boring device including means for boring through soil and a thrust conduit which pushes the boring device through the soil from a first starting point to a second end point as the device bores through the soil, whereby to form a tunnel between the two points. Thereafter, the cable to be installed within the tunnel is attached to the front end of the boring device and the latter is pulled back through the tunnel to its starting point by means of the thrust cable, thereby automatically pulling the new cable in place.

REFERENCES:
patent: 2349033 (1944-05-01), Elliott
patent: 3465834 (1969-09-01), Southworth, Jr.
patent: 3840079 (1974-10-01), Williamson
patent: 3872932 (1975-03-01), Gosselin
patent: 4176985 (1979-12-01), Cherrington
patent: 4195699 (1980-04-01), Rogers et al.
patent: 4625815 (1986-12-01), Spies
patent: 4640353 (1987-02-01), Schuh

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