US Patent Issued to Brunswick on July 1 for "Marine engines and methods of making marine engines having cylinder liners" (Wisconsin Inventor)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,197, issued on July 1, was assigned to Brunswick Corp. (Mettawa, Ill.).

"Marine engines and methods of making marine engines having cylinder liners" was invented by Daniel P. Hoffman (Fond du Lac, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A marine engine and methods are for making a marine engine having a cylinder block which defines a cylinder bore and a liner disposed in the cylinder bore, the liner being axially elongated and providing a piston running surface. The liner has a first outer diameter surface portion which is axially constrained with respect to with an interior surface of the cylinder block and a second outer diameter surfac...