Daniel A Graham

US Patent:

20130320250, Dec 5, 2013

Filed:

May 29, 2012

Appl. No.:

13/482102

Inventors:

Daniel GRAHAM - Riverside CA, US
Geza KISCH - Riverside CA, US
Thomas CARR - CORONA CA, US

International Classification:

F16K 31/06

US Classification:

25112904, 25112915, 25112905

Abstract:

Improvements in an electronic valve control system is disclosed where the valve is a spring diaphragm irrigation control valve where the flow rate is controlled with pulsed signal to a control solenoid. This device functions as hydraulic amplifier where the input signal is characterized by the duty cycle ratio of the applied electrical signal, and the output is the flow rate through the irrigation valve. The pilot path of the solenoid on the valve is rapidly alternated between enabled and disable states. This is achieved by installing an electrically actuated valve at some point along pilot path. The electrical signal to this valve is rapidly pulsed. This causes the irrigation valve to be held in a partially opened state. The duty cycle of the pulse signal controls the flow rate of water through the irrigation valve.

Address:

3400 Almond Ln, McKinney, TX 75070

VIN:

3GNEC12047G113527

Make:

CHEVROLET

Model:

AVALANCHE

Year:

2007