Patents by Inventor Robert M. Willams

Robert M. Willams 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).

  • Inert grinding and direct firing in coal burning systems
    Patent number: 4226371
    Abstract: A system in which coal is ground and transported in an inert atmosphere to a place of burning which may be a rotary kiln or a furnace, and in which system the coal being ground is used as the medium to produce the drying and inerting while the transporting media is the air brought in from outside the system and treated in a heating unit to consume part of the normal oxygen so it is rendered inert by the time it circulates in the system as the transporting media.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: October 7, 1980
    Inventor: Robert M. Willams