Patents by Inventor Judith N. Fradkin

Judith N. Fradkin 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 of operating a rotary calciner retrofitted to coal-firing
    Patent number: 4462794
    Abstract: Method of operating a rotary calciner retrofitted from oil- or natural gas-firing to coal-firing, in which coal is burned in a coal furnace and the coal combustion gases are then heated further in a booster burner utilizing oil or natural gas, to raise the combustion gas temperature to permit processing of calcine at up to a design capacity rate.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: July 31, 1984
    Assignee: Intermountain Research & Development
    Inventors: Henry A. Pfeffer, III, Judith N. Fradkin