Patents by Inventor George A. Berken

George A. Berken 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).

  • Method and apparatus for controlling auxiliary fuel addition to a pyrolysis furnace
    Patent number: 4517906
    Abstract: A two-stage starved air furnace system is controlled to simultaneously achieve desired temperatures and percent stoichiometric air operation in the primary stage by modulating transformation relay functions acting upon measured temperature deviations to change both primary combustion air and primary auxiliary burner operation. At the set-point value of percent stoichiometric air, the relay functions are modulated in reverse direction to satisfy changing heat demands.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: May 21, 1985
    Assignee: Zimpro Inc.
    Inventors: Frederick M. Lewis, George A. Berken