Liquid distribution system for irrigation and the like

Details Liquid distribution system for irrigation and the like Liquid distribution system for irrigation and the like

1975-06-10

1976-04-20

Love, John J.

Fluid sprinkling, spraying, and diffusing

Serially operated distribution means

1374875, 13762418, 239 70, A01G 2516, F17D 300

Patent

active

039513394

ABSTRACT:
An electrically controlled liquid distribution system for irrigation and the like comprises a central sequencing control station for controlling a remote valve station. The valve station provides local fault-sensing feedback control over actuation current supplied to a remote control valve therein. Conductor means, preferably comprising a single pair of conductors, connect the central station to the remote valve station. In one embodiment, the feedback control results in a change in current level flowing in the conductors after the remote control valve opens, and circuitry in the central station detects this change in current level to control an indicator.

REFERENCES:
patent: 3599867 (1971-08-01), Griswold et al.
patent: 3665945 (1972-05-01), Ottenstein

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