US Patent Issued to Industrial Process Systems on April 29 for "Method and device for drying fine particulate material such as fracking sand" (Kentucky Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,146, issued on April 29, was assigned to Industrial Process Systems Inc. (Louisville, Ky.).

"Method and device for drying fine particulate material such as fracking sand" was invented by Leonard A Loesch (Louisville, Ky.) and Oscar Mathis (Louisville, Ky.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device and method for drying fine particulate. A parallel flow rotary drum dryer is used to dry the particulate material. There is a combustion chamber for the burner, located upstream of the dryer inlet, and the burner flame is limited to the combustion chamber so the fine particulate material does not come into direct contact with the burner flame. ...