Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...
Patent
1998-02-04
1999-06-22
Bagnell, David J.
Hydraulic and earth engineering
Subterranean or submarine pipe or cable laying, retrieving,...
By means advancing along terrain and guiding pipe or cable...
405180, 37367, F16L 1028
Patent
active
059136383
ABSTRACT:
A sand channel trenching and pipe laying apparatus for attachment to a tractor or other motor driven vehicle has an elongated frame with a turf precutter assembly which includes both a pair of vertical cutting blades and horizontal blades for removing a strip of turf. Channel excavation apparatus for digging a pipe channel is operably mounted to the frame. A pipe dispenser for laying and positioning pipe in the pipe channel is secured to a subframe mounted on a rearward portion of the frame. A sand funnel for funneling and directing sand into the pipe channel is operably linked to a sand hopper and is mounted on the same subframe as the pipe layer. A ball valve and hose attachment device provide a controlled flow of water in the sand hopper allowing for liquification of the sand in the sand hopper forcing the sand to flow through the sand funnel into the pipe channel.
REFERENCES:
patent: 2788725 (1957-04-01), Wilkey et al.
patent: 4812078 (1989-03-01), Rivard
Bagnell David J.
Hall Jeffrey A.
Singh Sunil
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