US Patent Issued on Sept. 23 for "Ultrasound assisted vertical shot chamber for die casting applications" (Ohio Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,334, issued on Sept. 23.

"Ultrasound assisted vertical shot chamber for die casting applications" was invented by Qingyou Han (Stow, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for producing semi-solid material castings from its liquid state in a shot chamber of a vertical die casting machine where the liquid material is poured into a shot chamber and rapidly cooled from its liquid state to temperatures below its liquidus. High-intensity ultrasonic vibration is applied to the cast material. The combined action of rapid cooling from the shot chamber, vigorous pushing by the plunger, and radiation of ultrasonic vibratio...