ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,654, issued on Nov. 4, was assigned to HAMILTON SUNDSTRAND Corp. (Charlotte, N.C.).

"Smart heater for aircraft generator freeze protection" was invented by Ashutosh Joshi (Roscoe, Ill.), Chukwunyere Ofoegbu (Elgin, Ill.) and Debabrata Pal (Hoffman Estates, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ram air turbine assembly includes one or more airfoils and a ram turbine operably connected to the one or more airfoils. The ram air turbine includes: a rotor; a stator that includes windings; and a self-regulating heater coupled to the stator. The self-regulating heater configured to vary power that passes through it based on a temperature of t...