ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,845, issued on March 3, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).

"Dual air source bearing assembly housing for an aircraft propulsion system" was invented by Lorenzo Sanzari (Montreal) and Guy Lefebvre (St-Bruno, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "An engine includes a rotational assembly and a bearing assembly. The rotational assembly includes a shaft rotatable about a rotational axis. The bearing assembly includes a housing and a bearing. The housing surrounds and forms a bearing compartment. The housing includes a housing body extending circumferentially about the rotational axis. The housing body forms ...