ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,089, issued on Oct. 28.
"No solid bed extruder screw with varying width sub-channels" was invented by Jeffrey A. Myers (Onsted, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A no solid bed extruder screw for processing a material to a molten state has a body with a helical thread having pushing and trailing surfaces, the body extending longitudinally between feed and discharge ends. A channel for receiving the material to be processed is formed between the body outer surface and an outer diameter of the thread bounded by the pushing surface and the trailing surface. A volume of the channel decreases in a plurality of revolutions of the thread...