Time and moisture-responsive sprinkler control system

Details Time and moisture-responsive sprinkler control system Time and moisture-responsive sprinkler control system

1986-04-15

1988-01-12

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

For controlling soil irrigation

13762411, 239 64, 239 70, A01G 2516

Patent

active

047184469

ABSTRACT:
An electrically operated valve controls the flow of irrigation water. A clock controls the time of day and maximum irrigation time. The clock signal is serially connected through a control circuit which senses subterranean moisture and prevents solenoid actuation when moisture is adequate.

REFERENCES:
patent: 3991939 (1976-11-01), Maclay
patent: 4246574 (1981-01-01), Sanner
patent: 4256133 (1981-03-01), Coward et al.
patent: 4333490 (1982-06-01), Enter, Sr.

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