Patents Examined by Ramesh Kirshnamurthy
  • Heated seal air for valve and regenerative thermal oxidizer containing same
    Patent number: 7325562
    Abstract: Valve with heated sealing gas suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve utilizes hot gas from the regenerative process to heat gas for sealing the valve, and sealing air flows through a heat exchanger that is positioned to be in contact with hot exhaust gas from the regenerative process.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: February 5, 2008
    Assignee: Meggec Systems, Inc.
    Inventor: James T. Cash