Timing valve control system

Details Timing valve control system Timing valve control system

1975-09-15

1977-03-15

Moose, Harry

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

13762411, 361168, H01H 4718

Patent

active

040126730

ABSTRACT:
A solid state timing valve control system and unit is provided which may be battery operated, and which has particular although not exclusive utility for controlling a water lawn sprinkler system. The control unit of the invention may be coupled to a water control valve in the sprinkler system, and it acts automatically to turn the valve on at the start of each of a succession of preset watering cycles, and to turn the valve off after a preset watering time at the completion of each such cycle. The control unit includes a latching-type solenoid for controlling the water control valve. The unit also includes a solid state miniaturized electronic system for introducing a turn-on pulse to the solenoid at the start of each preset watering cycle, and for introducing a turn-off pulse to the solenoid at the completion of each cycle.

REFERENCES:
patent: 3372286 (1968-03-01), Rotunda
patent: 3377532 (1968-04-01), Lane et al.
patent: 3410301 (1968-11-01), Merriner et al.
patent: 3440434 (1969-04-01), Yates et al.
patent: 3547154 (1970-12-01), Benham
patent: 3578245 (1971-05-01), Brock
patent: 3707875 (1973-01-01), Freeman
patent: 3721908 (1973-03-01), Jurjans

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