Patents by Inventor Joseph M. Prawdzik

Joseph M. Prawdzik 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).

  • Buzz suppression in burners of high capacity direct fired fluid heaters
    Patent number: 5215454
    Abstract: In direct fired fluid burner heater of the type where fuel is continuously injected and burned at one end of a cylindrical combustion chamber and combustion gases discharged at an opposite open end pass through a heat exchanger for heating a circulating medium, and where high heat capacity is achieved for a given chamber size by swirling the flame in the combustion chamber, acoustical low frequency buzzing is controlled by restricting the discharge area through which exhaust gases flow downstream of the heat exchanger.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: June 1, 1993
    Assignee: Zwick Energy Research Organization, Inc.
    Inventors: Gabriel D. Ferramola, Eugene B. Zwick, Joseph M. Prawdzik, William D. Brigham