Patents by Inventor Paul A. Gredley

Paul A. Gredley 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).

  • Combustion method and apparatus
    Patent number: 5495813
    Abstract: Apparatus and method for incinerating waste whose ease of burning may vary form batch to batch, wherein burning is conducted in a main combustion region to form combustion products containing combustibles and in a secondary combustion zone which is supplied with oxygen at a rate during a first period of time which is independent of the composition of the combustion products or resulting flue gas and at a rate during a second period of time which is determined as a function of the concentration of at least one component of the combustion products or flue gas.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 5, 1996
    Assignee: The BOC Group pcl
    Inventors: Robert D. Chapman, Paul A. Gredley