US Patent Issued to B&T ENTWICKLUNGS- UND VERMARKTUNGSGESELLSCHAFT MBH on Oct. 20 for "Valve, and package" (Swiss Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,411, issued on Oct. 20, was assigned to B&T ENTWICKLUNGS- UND VERMARKTUNGSGESELLSCHAFT MBH (Hamburg, Germany).

"Valve, and package" was invented by Werner Balkau (Glarus-Sud / Schwandi, Switzerland) and Kurt Kronawittleithner (Horgen, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure-relief valve includes a cup shaped main body with a bottom and a circumferential wall to be fastened to a flexible package material. The bottom has at least one through hole forming a passage through the main body. A valve membrane lies against the main body on a package side in a region around the through hole(s), with a sealing liquid between the m...