Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Patent
1991-06-03
1992-12-29
Corbin, David H.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
Repair, replacement, or improvement
405174, F16L 1028
Patent
active
051746867
ABSTRACT:
A pipe laying apparatus comprising a frame mounted on two or more wheels, with a motor and a cutting disk for cutting a narrow slit in the ground. In one embodiment, the apparatus has a blade following the disk and having a conduit on the end with a nozzle on one end of the conduit that issues a jet of water into the bottom of the slit to form a channel. The pipe is attached to the other end of the conduit and is pulled into position in the channel as the apparatus advances. In an alternate embodiment, the apparatus has a winch and pulley used to deploy a wire into the slit as the apparatus is moved forward. The other end of the wire is attached to a nozzle and conduit with the pipe attached in turn to the conduit. When the apparatus is stoppped, the winch rewinds the wire while the nozzle sprays a jet of water in the direction of movement to form the channel and allow the pipe to be easily pulled into position.
REFERENCES:
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patent: 3201944 (1965-08-01), Christensen
patent: 3214920 (1965-11-01), Jacobs
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patent: 3523425 (1970-08-01), Pierce, Jr.
patent: 3914948 (1975-10-01), Kaercher
patent: 4050260 (1977-09-01), Lemay
patent: 4146347 (1979-03-01), Woods
patent: 4825569 (1989-05-01), Porter
Corbin David H.
Mann Michael A.
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