Patents by Inventor Norman Hodgkinson

Norman Hodgkinson 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 heat treating a material
    Patent number: 4201676
    Abstract: A material in slurry form is heat treated by being sprayed onto a fluidized bed wherein its combustible component is burnt to generate heat. Elutriated fines material is recycled to the bed to control the mean particle size distribution in the bed and in such a manner as to secure that the sprayed material contacts at least some of the recycled fines.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: May 6, 1980
    Assignee: Coal Industry (Patents) Limited
    Inventors: Arthur A. Randell, Norman Hodgkinson