Patents Assigned to Tri-Phase, Inc.
  • Apparatus and method for adapting sensors to an irrigation controller
    Patent number: 4921001
    Abstract: There is provided a method and an apparatus for adapting a conventional freeze and rain sensors to be used with a water irrigation system in which a water valve is retracted by a latching solenoid.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: May 1, 1990
    Assignee: Tri-Phase, Inc.
    Inventor: Stephen D. Pittsinger