ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,396, issued on Nov. 3.
"Device and process for manufacturing natural fiber filling material" was invented by Zhibin Song (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present invention is a device for manufacturing a natural fiber filling material, which includes a ground, a mixed fiber felt preparation machine, an open-type oil heating mold, a hydraulic press, a single-sided roller gluing machine, a cold press, a lower mold, a hydraulic cylinder, an upper mold, a control box, a heat dissipation mechanism and a lubricating mechanism. The present invention relates to a device for manufacturing a natural fiber filling materia...