Solid state electronic irrigation controller

Details Solid state electronic irrigation controller Solid state electronic irrigation controller

1986-11-24

1989-05-02

Roskoski, Bernard

Electrical transmission or interconnection systems

Switching systems

Switch actuation

1376242, G06F 1556

Patent

active

048271551

ABSTRACT:
A solid state electronic controller for electrically-operated water sprinkler valves in an irrigation system. The controller is constructed to control a number of different water sprinkler valves in each of a number of different watering zones, for successive time intervals at one or more preset time periods during each day of the week. The controller includes a liquid crystal display which exhibits instruction words and numbers to facilitate the programming of the controller, for monitoring the operation of the controller, and also for exhibiting malfunctions in the system.

REFERENCES:
patent: 4165532 (1979-08-01), Kendall et al.
patent: 4189776 (1979-02-01), Kendall
patent: 4209131 (1980-06-01), Barash et al.
patent: 4304989 (1981-12-01), Vos et al.
patent: 4423484 (1983-12-01), Hamilton
patent: 4569020 (1986-02-01), Snoddy et al.

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