US Patent Issued to DeltaHawk Engines on May 6 for "Piston assembly with gapless oil control ring" (Wisconsin, Illinois Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,013, issued on May 6, was assigned to DeltaHawk Engines Inc. (Racine, Wis.).

"Piston assembly with gapless oil control ring" was invented by Graydon Robert Hegge (Madison, Wis.), Aaron Gamache Foege (Kansasville, Wis.) and Frank Matthew Graczyk (Darien, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston is provided with a gapless ring positioned in a subport position. Specifically, the gapless ring is positioned between the air ports and the crankcase of the engine. The gapless ring includes a rail and an annular ring received within the rail. The ring includes a ring gap and the rail includes a rail gap. When the rail receives the annular...