ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,142, issued on March 4, was assigned to SIEMPELKAMP MASCHINEN-UND ANLAGENBAU GMBH (Krefeld, Germany).
"Method of glue-coating plant particles" was invented by Hans W. Fechner (Duesseldorf, Germany), Michael Schoeler (Rheurdt, Germany), Jochem Berns (Grefath, Germany) and Rolf Trummel (Duesseldorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fiberboard or chipboard is made by first comminuting vegetable starting material in a first comminutor into a stream of loose plant particles with silicate particles. Then, in a first classifier silicate particles of a diameter of less than 50 micro metre are separated from the plant particles of the s...