ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,437, issued on Oct. 28, was assigned to I CHERNG REFRIGERATION INDUSTRIAL Co. LTD. (Kaohsiung, Taiwan).
"Group head vortex shower" was invented by Po-Yang Hsueh (Kaohsiung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A group head vortex shower is used in a coffee machine and includes a bottom wall, a surrounding wall and a reflection wall. The surrounding wall extends from the bottom wall, surrounds a central axis, cooperates with the bottom wall to define a water inlet space, and has a plurality of outer outlets that are in fluid communication with the water inlet space. The reflection wall is sleeved around the surrounding wall, and has ...