Patents by Inventor Dana Nova Joyce Wolverton

Dana Nova Joyce Wolverton 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).

  • Fluid metering valve
    Patent number: 7017884
    Abstract: A fluid metering valve includes a gear rack which is slidable on a valve stem in which a spring counteracts the force of an actuator to maintain a constant load on the gear mechanism to prevent backlash. Corresponding stop mechanisms between the gear and the shaft of a rotary actuator come into engagement with each other near a fully closed position of the fluid metering valve for zero calibration purposes upon power loss to the actuator. A single valve member and a single actuator of the fluid metering valve provides for both a shut-off function and a metering function.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: March 28, 2006
    Assignee: Woodward Governor Company
    Inventors: Barry T. Brinks, Dana Nova Joyce Wolverton, Delbert Dwight Cannon, Gary F. McDaniel