ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,540, issued on Sept. 15, was assigned to Tekni-Plex Inc. (Wayne, Pa.).
"Thin-walled tube for dispensing apparatus" was invented by Guangda Shi (Perrysburg, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dip tube for a dispensing apparatus, in particular an pump spray assembly for dispensing a liquid fragrance such as perfume or cologne. The dip tube is an extruded thin-walled polymer dip tube configured to provide substantial invisibility when disposed in a liquid fragrance product. In contrast to the prior art that aims to match the refractive index of the dip tube polymer and perfume, the present invention enables use of polymers that havi...