Patents by Inventor John M. Clay

John M. Clay 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 for the manufacture of carbon black
    Patent number: 4198469
    Abstract: A process for manufacturing oil furnace carbon black in which all or a portion of the combustion air is swirled just prior to contacting the fuel. The portion of total air which is swirled is adjustable so as to provide a predetermined, controlled Swirl Ratio in order to control the structure of the resulting carbon black.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: April 15, 1980
    Assignee: Continental Carbon Company
    Inventors: Karel R. Dahmen, John M. Clay