Hydraulic and earth engineering – Drainage or irrigation – Porous waterway – e.g. – sand drain – etc.
Patent
1989-12-15
1991-05-21
Taylor, Dennis L.
Hydraulic and earth engineering
Drainage or irrigation
Porous waterway, e.g., sand drain, etc.
521695, 405 36, 405 43, 405 45, E02B 1100, E02B 1300
Patent
active
050170422
ABSTRACT:
Collapsible cellular arrays constructed of biodegradable material are employed to define liquid flow courses in a subterranean environment. The cellular arrays receive and support, in a desired orientation and position, liquid delivery/removal conduits. The cells of the arrays are preferrable hexagonal in shape and are filled with a particulate filter material.
REFERENCES:
patent: 3441140 (1969-04-01), Thurber
patent: 4288321 (1981-09-01), Beane
patent: 4319998 (1982-03-01), Anderson
patent: 4614584 (1986-09-01), Di Duca
Berg Kjell E.
Minor Robert N.
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