Patents by Inventor Ronald K. Riddle

Ronald K. Riddle 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).

  • DIRECT SPRAY COOLING FOR LIMESTONE PREHEATERS
    Publication number: 20120107758
    Abstract: A preheating apparatus for particulate material using hot kiln gases to preheat the particular material. The apparatus has a means to cool the hot kiln gases prior to the gases being exhausted from the preheating apparatus.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Applicant: FLSmidth A/S
    Inventors: Charles R. Euston, Ronald K. Riddle, Gene Basara, II
  • Reduction kiln
    Patent number: 7828548
    Abstract: Disclosed is a process for reducing metallic oxide or sulfide materials in a rotary kiln and a rotary kiln for reducing such materials. The materials are heated in a reducing atmosphere as they travel along the axial length of the rotary kiln. The materials are discharged from the kiln at a discharge point in the kiln away from its lower material outlet end, wherein the temperature within the kiln at said discharge point is greater than the temperature at the lower material outlet end.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 9, 2010
    Assignee: FLSmidth A/S
    Inventor: Ronald K. Riddle
  • Reduction kiln
    Publication number: 20080176178
    Abstract: Disclosed is a process for reducing metallic oxide or sulfide materials in a rotary kiln and a rotary kiln for reducing such materials. The materials are heated in a reducing atmosphere as they travel along the axial length of the rotary kiln. The materials are discharged from the kiln at a discharge point in the kiln away from its lower material outlet end, wherein the temperature within the kiln at said discharge point is greater than the temperature at the lower material outlet end.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 24, 2008
    Inventor: Ronald K. Riddle