US Patent Issued to Hamilton Sundstrand on July 29 for "Piston retainer plate" (Illinois Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,074, issued on July 29, was assigned to Hamilton Sundstrand Corp. (Charlotte, N.C.).

"Piston retainer plate" was invented by Jonathon Rothmeyer (Rockford, Ill.) and Edward Goy (Crystal Lake, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston retainer plate includes a first end, a second end opposite the first end, a piston pocket extending from the first end to the second end, a straight annular surface extending from the first end, an angled annular surface extending at an angle from the second end, a curved annular surface connected to the straight annular surface and the angled annular surface, the curved annular surface being between t...