Method of laying subsoil membranes

Details Method of laying subsoil membranes Method of laying subsoil membranes

1976-10-20

1978-07-04

Shapiro, Jacob

61 11, 61 63, E02B 1102

Patent

active

040980898

ABSTRACT:
A method for laying subsoil membranes includes dragging a hollow cutting blade through the soil at a predetermined depth, providing a supply of sheeting to the interior of the blade and feeding the sheeting from the interior of the blade through an opening therein. The hollow blade has a cutting edge, a rear edge and an upper section having an upwardly sloping front portion and a downwardly sloping rear portion connected by a center portion. The bottom portion of the blade slopes in an upward direction from its front to form a release angle. The sheet material is fed out of an opening in the rear of the blade.

REFERENCES:
patent: 3309875 (1967-03-01), Niederwemmer
patent: 3339369 (1967-09-01), Ryan
patent: 3585804 (1971-06-01), Sramek
patent: 3590588 (1971-07-01), Draper et al.

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