Patents by Inventor LELAND COLIN DOYLE

LELAND COLIN DOYLE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TESTING DEVICE AND SYSTEM FOR A BACKFLOW PREVENTER
    Publication number: 20190086289
    Abstract: A testing device for a backflow preventer assembly has a plurality of automated valves. Each automated valve is coupled to a corresponding test valve of the backflow preventer assembly. A high side diverter array is coupled to at least one of the plurality of automated valves. A low side diverter array is coupled to at least one of the plurality of automated valves. A vent side diverter array is coupled to at least one of the plurality of automated valves. A pressure differential transmitter is coupled to the high side diverter array and the low side diverter array. A high side bleed solenoid is coupled to a high side of the pressure differential transmitter. A low side bleed solenoid is coupled to a low side of the pressure differential transmitter. A vent side bleed solenoid coupled to a vent side diverter array. A plurality of bypass solenoids is coupled to the high side bleed solenoid, the low side bleed solenoid and the vent side bleed solenoid.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 21, 2019
    Inventors: GARY LEE SHAW, JR., LELAND COLIN DOYLE, SHANNON BROOK DOWNS, JEFFREY JOHN DOWNS