ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,860, issued on Feb. 4, was assigned to JOHN ZINK COMPANY LLC (Tulsa, Okla.).
"Flame detection and ignition device" was invented by Dominique Grillotti (Guenange, France), Gilles Theis (Dudelange, Luxembourg) and Clement Bresillion (Metz, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is disclosed an ionisation and/or ignition device comprising: an inner rod, an outer sleeve, and an electrical insulator. The inner rod comprises a semiconductor refractory material. The outer sleeve comprises a semiconductor refractory material. The electrical insulator is disposed between the inner rod and the outer sleeve. The inner rod material has a gre...