ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,092, issued on Dec. 23, was assigned to The Boeing Co. (Arlington, Va.).
"Propellant valve" was invented by Handoko Hadisurya (La Mirada, Calif.), John R. Hull (Seattle) and Robert J. Atmur (Whittier, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A propellant valve includes a ferromagnetic shell and a pair of coils within an opening of the ferromagnetic shell. The propellant valve includes a bobbin extending from an upper section of the ferromagnetic shell to a lower section of the ferromagnetic shell. The bobbin seals the opening of the ferromagnetic shell. The propellant valve includes an upper ferromagnetic pole coupled to an upper portio...