ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,971, issued on May 20, was assigned to Inner Mongolia University of Technology (Hohhot, China).
"Device and process for hot air jet dewaxing and reclaiming wax composition from pattern for casting shell making" was invented by Chang Liu (Hohhot, China), Xiangdong Liu (Hohhot, China), Hua Feng (Hohhot, China), Zhongxing Tian (Hohhot, China) and Yuecheng Zhang (Hohhot, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device and process for hot air jet dewaxing and reclaiming wax composition from patter for investment casting shell making. The device includes a hot air supply mechanism, a hot air jet dewaxing mechanism, a liquid wax collection me...