Patents by Inventor Henry F. de Mena

Henry F. de Mena 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).

  • Control scheme and apparatus for a cogeneration boiler
    Patent number: 4451003
    Abstract: An improved control system and method for maintaining the outlet temperature of a process fluid exiting from a process fluid coil located in the convection section of a boiler having a convection section and a radiant section. The improved control system and apparatus comprise means for measuring the inlet temperature and the flow rate of a process fluid to the process fluid coil and means for measuring the temperature of the process fluid at the outlet of the process fluid coil. The improved control method and apparatus also comprise a first means responsive to changes in the inlet temperatures and flow rate to vary the amount of flue gas recirculated from the convection section of the boiler to the radiant section and a second means responsive to changes in the outlet temperature of said process fluid to vary the amount of fuel feed to the combustion section of said boiler.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: May 29, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Henry F. de Mena, Michael A. Tanoff