Patents by Inventor Ryall Stewart

Ryall Stewart 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).

  • Valve monitoring and controlling system
    Patent number: 7784490
    Abstract: A valve monitoring system including at least one valve having a movable handle with an activator therein mounted adjacent to a support panel on which are disposed a plurality of sensor devices responsive to the activator and a separate indicator panel for displaying the position of the valve handle. The activator at the handle and the sensor devices interact to selectively indicate operational conditions of the valve. In addition, a motor can be used to move the handle, and reconfigure the valve, as desired.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: August 31, 2010
    Inventors: Ryall Stewart, Robert Foresman