ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,676, issued on Nov. 18, was assigned to GUANGZHOU TECH-LONG PACKAGING MACHINERY Co. LTD (Guangdong, China).

"Heat treatment device for pet bottle preform with integral handle" was invented by Daqun Zou (Guangdong, China), Guanyuan Zeng (Guangdong, China) and Jingfeng Liu (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heat treatment device for a PET bottle preform with an integral handle includes an air-cooling knife, a heating furnace, and a transport mechanism. The air-cooling knife is disposed on an outlet side of the heating furnace, the bottle preform is transported into the heating furnace through the transport mechanism, he...