Electrical control system for automatic metering valve

Details Electrical control system for automatic metering valve Electrical control system for automatic metering valve

1976-04-06

1977-11-08

Reeves, Robert B.

Dispensing

Cutoff operated by selectively preset volume or rate of...

Moving cutoff operating element with variable initial position

222 59, 222 70, 222504, B67D 530

Patent

active

040571734

ABSTRACT:
An electrical control system for an automatic metering valve delivering a preset quantity of water and having a housing for the valve, a rotary impeller disposed within the housing and rotatable at a velocity in accordance with the rate of delivery of the water, and an automatic shut-off mechanism for turning-off the valve when the preset quantity of water has been delivered. The control system includes a sensible element disposed internally of the valve housing and rotated with the impeller, a sensor sensing the sensible element to produce electrical signals corresponding to the number of rotations thereof and of the impeller, a presettable counter circuit effective to count the latter electrical signals, a switching circuit effective to actuate the valve shut-off mechanism to turn-off the valve when the counter circuit reaches a preset number corresponding to the preset quantity of fluid to be delivered, and a presettable timer effective to actuate the valve shut-off mechanism to turn-on the valve after the elapse of a preset time interval.

REFERENCES:
patent: 3028050 (1962-04-01), Nelson
patent: 3252623 (1966-05-01), Corbin et al.
patent: 3580435 (1971-05-01), Bertillsson
patent: 3736930 (1973-06-01), Georgi
patent: 3831812 (1974-08-01), Dolan

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