Patents by Inventor Donald H. Cookson

Donald H. Cookson 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).

  • Process for pulverizing coal using combination gas in fluid energy pulverizers
    Patent number: 4190005
    Abstract: Combustion gases from combustion of a coal-in-oil fuel mixture are used as an inert carrier gas in a fluid energy pulverizer used in the formation of the fuel mixture. A portion of the hot combustion gases is separated, cooled and compressed and passed to a heat exchanger where that portion is heated by the remainder of the combustion gases, the hot, pressurized portion led to the fluid energy pulverizer for use as a carrier gas for pulverizing of further coal.
    Type: Grant
    Filed: December 15, 1978
    Date of Patent: February 26, 1980
    Assignees: COMCO - Dravo Corporation, Electric Fuels Corporation
    Inventors: Donald H. Cookson, Clifford W. McCoy