US Patent Issued to Mahle International on Dec. 30 for "Piston ring and internal combustion engine" (Portuguese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,155, issued on Dec. 30, was assigned to Mahle International GmbH (Germany).

"Piston ring and internal combustion engine" was invented by Rafael Rabello (Murtede, Portugal) and Juliano Avelar Araujo (Coimbra, Portugal).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston ring for an internal combustion engine may include an annular base body and a protective coating arranged on an outer circumference of the base body. The base body may include a first joint flank, a second joint flank, an interruption along the circumferential direction, an axial end face, and an edge formed between the first joint flank and the end face. The interruption may form ...