Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1986-07-11
1987-07-07
Corbin, David H.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
405 52, E02B 500, E02B 1300
Patent
active
046783687
ABSTRACT:
A covering system for canals to minimize evaporization loss from water transportation canals. The system comprises a plurality of strips of liquid impervious materials of predetermined length adjacent one another forming a section. The strips are secured to a transverse support at one end of each section. The strips float on the canal surface in both a flowing and quiescent condition. The sections of strips are spaced so that in the direction of flow adjacent sections overlap a predetermined distance to accomodate fluctuations in the water level in the canal.
REFERENCES:
patent: 3029606 (1962-04-01), Olsen
patent: 3188813 (1965-06-01), Foster et al.
patent: 3815367 (1974-06-01), Collins
patent: 4070864 (1978-01-01), Jarvis
Corbin David H.
Nelson Gregory J.
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