US Patent Issued to SHIBAURA MACHINE on Nov. 4 for "Screw machine with a rotatable filter in a deaeration port" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,185, issued on Nov. 4, was assigned to SHIBAURA MACHINE Co. LTD. (Tokyo).

"Screw machine with a rotatable filter in a deaeration port" was invented by Shozo Suzuki (Numazu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An extruder is provided with: a screw rotationally driven about the axis by a first motor; a barrel having a screw hole into which the screw is inserted and a de-airing port configured to discharge air inside the screw hole; a filter configured such that a part thereof faces the de-airing port of the barrel; and a filter-driving mechanism configured to move the filter to shift the part of the filter facing the de-airing port." ...