Land drainage system

Details Land drainage system Land drainage system

1986-04-23

1987-11-03

Corbin, David H.

Hydraulic and earth engineering

Drainage or irrigation

Control means responsive to sensed condition

405 43, E02B 1100

Patent

active

047040475

ABSTRACT:
A land drainage system comprising sub-soil tubes (1) connected to a suction container (3) has the container evacuated by a dual function system comprising liquid pumping means (4) and air extracting means (6). A reservoir (5) can contain liquid to be passed into the soil (e.g. for irrigating the land).

REFERENCES:
patent: 4348135 (1982-09-01), St. Clair
patent: 4389138 (1983-06-01), Soderstrom
patent: 4462184 (1984-07-01), Cunningham
patent: 4488963 (1984-12-01), Hellers
patent: 4583880 (1986-04-01), Henttonen

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