Patents by Inventor Ken Stedman

Ken Stedman 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).

  • Automated water treatment system and method of use
    Publication number: 20050077247
    Abstract: An automated method for controlling a solids inventory in a continuous backwashing upflow sand filter system treating a liquid inflow having impurities therein, includes the steps of: monitoring an influent inflow pressure and controlling the air pressure in an air lift pump to maintain a target ratio range between the size of a solids inventory of the system and the size of the sand bed of the system.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Inventor: Ken Stedman