Irrigation valve device

Details Irrigation valve device Irrigation valve device

1978-08-28

1980-07-29

Marbert, James B.

Fluid sprinkling, spraying, and diffusing

With cutoff or flow varying means operated by means...

405 37, H01G 2700

Patent

active

042147018

ABSTRACT:
An irrigation valve device including a swellable member and a support therefor permitting moisture to reach the swellable member. Part of the support can be buried in the ground to an adjustable extent to vary the amount of moisture reaching the swellable member. The swellable member acts on irrigating water supply means to control the amount of irrigation water in response to the degree of swelling.

REFERENCES:
patent: 3426539 (1969-02-01), Whear

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