Patents by Inventor Albert Wajda

Albert Wajda 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).

  • Heat exchanger clean-out plug assembly
    Publication number: 20060231088
    Abstract: A flue-gas to air heat exchanger having a flue-gas containing shell with a heat exchange surface, flue-gas inlet and outlet sections, and at least one tubular clean-out fitting is provided with a removable plug having an outer peripheral portion resiliently engageable with a section of the inner peripheral portion of the fitting adjacent the shell. The plug periphery is expanded into gas-tight sealing contact with the fitting inner periphery by means affording installation and removal without tools.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Applicant: Burnham Services, Inc.
    Inventors: Michael Sharkozy, Everett James, Donald Zimmerman, Albert Wajda, Gerald Rausch, Joseph Leszek