The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2013
Filed:
Aug. 08, 2005
Charles W. Bullinger, Bismarck, ND (US);
Mark A. Ness, Underwood, ND (US);
Nenad Sarunac, Easton, PA (US);
Edward K. Levy, Bethlehem, PA (US);
Anthony F. Armor, Aptos, CA (US);
John M. Wheeldon, Birmingham, AL (US);
Matthew P. Coughlin, Hibbing, MN (US);
Charles W. Bullinger, Bismarck, ND (US);
Mark A. Ness, Underwood, ND (US);
Nenad Sarunac, Easton, PA (US);
Edward K. Levy, Bethlehem, PA (US);
Anthony F. Armor, Aptos, CA (US);
John M. Wheeldon, Birmingham, AL (US);
Matthew P. Coughlin, Hibbing, MN (US);
Great River Energy, Maple Grove, MN (US);
Abstract
The present invention constitutes a heat treatment apparatus like a fluidized-bed dryer for heat treating a particulate material in a low temperature, open-air process. Preferably, available waste heat sources within the surrounding industrial plan operation are used to provide heat to the dryer. Moreover, conveyor means contained within the dryer can remove larger, denser particles that could otherwise impede the continuous flow of the particulate material through the dryer or plug the fluidizing dryer. This invention is especially useful for drying coal for an electricity generation plant.