Process and apparatus for laying a subterranean film

Details Process and apparatus for laying a subterranean film Process and apparatus for laying a subterranean film

1980-10-30

1983-04-12

Corbin, David H.

Hydraulic and earth engineering

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

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

405183, E02F 510, F16L 102

Patent

active

043796559

ABSTRACT:
Improved method and means for laying a strip of film beneath the surface of the soil can include any one or more of the following: (1) method and means for starting the film; (2) method and means for centering the film in a film inlet of a plow; (4) method and means for guiding the film in a feed housing of a plow; (5) method and means for centering the film in a film distribution housing of a plow; and/or (6) method and means for supporting the film while earth is being laid down thereon.

REFERENCES:
patent: 2078872 (1937-04-01), Pfeiffer
patent: 2843068 (1958-07-01), Smith et al.
patent: 3065605 (1962-11-01), Zitko
patent: 3083542 (1963-04-01), Summers et al.
patent: 3327484 (1967-06-01), Launder et al.
patent: 3339369 (1967-09-01), Ryan
patent: 3590588 (1971-07-01), Draper et al.
patent: 4098089 (1978-07-01), Zaslavsky et al.

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