Patents by Inventor Richard Mazzola

Richard Mazzola 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).

  • Cryopump with an exhaust filter
    Patent number: 5974809
    Abstract: A filter standpipe is mounted within a relief conduit of a cryopump. The relief conduit is joined to an exhaust conduit, and the exhaust conduit is joined to a housing which defines a vacuum chamber. The relief conduit and exhaust conduit define passages which are in fluid communication with one another and also with the vacuum chamber. The filter standpipe extends, from where it is mounted in the relief passage into the exhaust passage. A method for installing the filter standpipe includes the steps of removing a relief valve from a mount on the end of the relief conduit, inserting the filter standpipe through the mount, and remounting the relief valve.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: November 2, 1999
    Assignee: Helix Technology Corporation
    Inventors: Gary Wooster, Frank Skuncik, Michael Richardson, Richard Mazzola, Douglas Funsch, Harry Ledgard