ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,337, issued on July 1, was assigned to Adams GmbH (Herne, Germany).
"Metal seal for a flap valve" was invented by Martin Adams (Bochum, Germany), Rudolf August Kappe (Marl, Germany), Eugen Leno (Holzwickede, Germany), Julian Krell (Bochum, Germany) and Fabian Sattelberger (Muenster, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A metal seal for a flap valve, is disclosed which has a valve housing with a flow channel, in the flow cross-section of which a valve disk is disposed such that it can be swiveled around a swivel axis between an open position and a shutoff position. The seal has sealing elements, which can be pressed against one anoth...