ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,154, issued on Dec. 30, was assigned to RTX Corp. (Farmington, Conn.).
"Light weight hybrid piston seal ring" was invented by Hamidreza Mohseni (Avon, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piston seal ring for sealing between an inner and an outer radial component includes a core having a shell, wherein the core includes a material selected from the group consisting of titanium alloy, titanium-based metal matrix, carbon-carbon composite, electro-graphitic carbon, ceramic matrix composite and combinations thereof, and wherein the shell includes a material selected from the group consisting of nickel alloy, cobalt alloy and combinatio...