ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,407, issued on March 4, was assigned to Finno Exergy Oy (Vantaa, Finland).

"Method of controlling deflagration combustion process in pistonless combustor" was invented by Timo Eramaa (Vantaa, Finland) and Heikki Salminen (Vantaa, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The method is for controlling a deflagration combustion process in a pistonless combustor. The method includes scavenging combustion products of the previous cycle, introducing air into the combustor thereby initiating a flow pattern having a first flow component within the combustor. Air is introduced into the pistonless combustor in a nonparallel angle in relation to ...