Patents by Inventor Clarence S. Rankin, deceased

Clarence S. Rankin, deceased 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).

  • Feed distributor for multiple hearth furnace
    Patent number: 4442782
    Abstract: A multiple hearth furnace feed distributor including a conical table feeder attached to the center shaft of the furnace for rotation therewith, together with a stationary convolute plow fixed above the conical table feeder.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: April 17, 1984
    Assignee: Lurgi Corporation
    Inventors: Frank Lilley, Clarence S. Rankin, deceased