ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,930, issued on Jan. 13, was assigned to Addex Inc. (Newark, N.Y.).
"High performance cooling element" was invented by Robert E. Cree (Conroe, Texas) and William J. Randolph (Farmington, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an external cooling system for a molten film tube produced by a blown film tubular extrusion process. Embodiments of the present disclosure provide a unidirectional cooling element having a unidirectional cooling interface containing a cooling gas deflector spaced adjacent to the molten film tube. The unidirectional cooling element operably expels cooling gas in a path with the flow ...