Laydown tool for plastic crop-irrigation tubing

Details Laydown tool for plastic crop-irrigation tubing Laydown tool for plastic crop-irrigation tubing

1978-04-14

1979-06-26

Shapiro, Jacob

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

By means advancing along terrain and guiding pipe or cable...

F16L 100

Patent

active

041591909

ABSTRACT:
This invention provides apparatus and a method for laying flexible irrigation tubing underground, the apparatus comprising a plow attached to a frame, means located on the frame to support and unreel a spool of flexible tubing, a rigid tube affixed to the frame adapted to accept the flexible tubing at its upper end and bent so that its lower portion extends rearward of the plow generally parallel to the ground and in the trench dug by the plow, hillers affixed to the frame adapted to force the dirt plowed by the plow back into the formed trench immediately behind the rigid tube, and a compacting means attached to and trailing the hillers to compact the dirt into the trench, provided that the trailing end of the rigid tube extends rearward to a point behind the point of compaction of the compacting means such that, in operation, as the apparatus is pulled across the ground and the flexible tubing is drawn into the rigid tube, the flexible tubing exits the trailing end of the rigid tube and is laid into the underground tunnel which is formed by operation of the component parts of the apparatus.

REFERENCES:
patent: 2118553 (1938-05-01), Garlinger
patent: 2722181 (1955-11-01), Hash
patent: 3391545 (1968-07-01), Linneman

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