ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,859, issued on Oct. 28, was assigned to V-GLASS INC. (Pewaukee, Wis.).
"Two-stage hermetic seal and process of making same" was invented by Peter Petit (Pewaukee, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An evacuated glazing assembly has first and second spaced-apart, non-metal substrates connected to each other by a seal element to form an evacuable interior space therebetween. The seal element is formed by bonding a metallic bridge element to at least one of the substrates by cold welding to form a first stage seal and forming a second stage seal at least partially in contact with the first stage seal. The seal element is configured to ...