ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,339, issued on June 24, was assigned to Guala Dispensing S.P.A. (Alessandria, Italy).
"Trigger dispensing device" was invented by Riccardo Alluigi (Alessandria, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A trigger dispensing head applicable to a bottle suitable for containing a product to be dispensed is provided. The trigger dispensing head has valve elements having a dome-shaped valve body provided with an elastically deformable membrane. The elastically deformable membrane has an annular sealing ring that forms a head seal of a pre-stressing valve."
The patent was filed on Nov. 4, 2021, under Application No. 18/042,921.
*For further i...