ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,559, issued on Sept. 15.
"Spray nozzle for washing" was invented by Young Kyoun Lim (Incheon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a spray nozzle for washing, in which: a linear spray inlet and a spiral spray inlet are integrally formed in one nozzle body, and thus, linear and spiral washing water can be selectively sprayed by operating organically; the lower end of a nozzle tip, which forms the spiral washing water, moves circumferentially around the axis, and the upper end makes linear contact within a packing, thereby preventing abrasion caused by friction and forming the spiral washing wate...