US Patent Issued to Guala Dispensing on Feb. 10 for "Trigger dispensing head with reduced piston chamber" (Italian Inventor)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,778, issued on Feb. 10, was assigned to Guala Dispensing S.P.A. (Spinetta Marengo, Italy).

"Trigger dispensing head with reduced piston chamber" was invented by Riccardo Alluigi (Alessandria, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a trigger dispensing head applicable to a bottle of a trigger dispensing device having a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a manually-operable piston, a suction duct, and a dispensing duct. The sleeve is provided with an annular inner sleeve wall delimiting a pressure chamber, and an annular outer sleeve wall externally spaced from the annular inner sleeve ...