Title: Process and apparatus for laying a subterranean film

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.

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Inventors: Brost, Robert L. (Independence, KS)
Gagle, Duane W. (Bartlesville, OK)

Application Number: 06/202098
Filing Date: 1980-10-30
Publication_date: 1983-04-12
Assignee: PHILLIPS PETROLEUM CO

Primary Class(es): 405/176 405/183
Other Classes: A01G25/00; E02F5/10; F16L1/02; E02F5/10
US Patent Ref:

2078872	April, 1937	Pfeiffer	47/9	Machine for laying protecting paper over plants
2843068	July, 1958	Smith et al.	405/176	Seed tape planter
3065605	November, 1962	Zitko	405/176	Seed tape planter
3083542	April, 1963	Summers et al.	405/180	Device for installing soil drainage means
3327484	June, 1967	Launder et al.	405/176	Tape laying plow
3339369	September, 1967	Ryan	405/176	Identification tape plow
3590588	July, 1971	Draper et al.	61/726	PROCESS AND APPARATUS FOR LAYING A HORIZONTAL SUBTERRANEAN FILM
4098089	July, 1978	Zaslavsky et al.	61/726	Method of laying subsoil membranes

Other Refs: SU657132SU649777

April, 1979	405/176
May, 1979	405/176

Primary Examiner: Corbin, David H.
Assistant Examiner:
Attorney: Kilpatrick & Cody
Ewing IV, James L.

Claims: