Automatic water control apparatus

Details Automatic water control apparatus Automatic water control apparatus

1991-01-25

1992-06-02

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

For controlling soil irrigation

137486, 137613, 137907, 239 63, A01G 2500

Patent

active

051178559

ABSTRACT:
An automatic water control system with a venturi has a bypass conduit so that the venturi does not act to limit the flow of water to demands made downstream of the water control system. Further, the automatic water control means has a light sensitive control to allow water flow only during day or night by controlling the transmission of the vacuum pulled by the venturi to a porous moisture sensor.

REFERENCES:
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patent: 2093842 (1937-09-01), MacLean et al.
patent: 2164153 (1939-06-01), Friedrich
patent: 2829664 (1958-04-01), Mountford
patent: 2863698 (1958-12-01), Richards
patent: 3981446 (1976-09-01), Hunter
patent: 3991939 (1976-11-01), Maclay
patent: 4055200 (1977-10-01), Lohoff
patent: 4256133 (1981-03-01), Coward et al.
patent: 4506594 (1985-03-01), Rowland et al.

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