US Patent Issued to Collins Engine Nozzles on Aug. 25 for "Self-cleaning for torch ignitors" (Iowa Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,390, issued on Aug. 25, was assigned to Collins Engine Nozzles Inc. (Des Moines, Iowa).

"Self-cleaning for torch ignitors" was invented by Jason Ryon (Carlisle, Iowa) and Lev A. Prociw (Johnston, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating and cleaning a torch ignitor for continuous ignition includes issuing a fuel-lean flow through a combustion chamber of a torch ignitor. The method also includes heating interior surfaces of the torch ignitor, wherein the fuel-lean flow reacts with carbon deposits on the interior surfaces to remove the carbon deposits."

The patent was filed on Aug. 30, 2021, under Application No. 17/4...