US Patent Issued to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) on May 12 for "Vacuum generator and negative pressure dust suction device having same" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,555, issued on May 12, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).

"Vacuum generator and negative pressure dust suction device having same" was invented by Hongtao Li (Ningde, China), Lei Song (Ningde, China) and Shengdong Chen (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum generator may comprise: a generator body provided with an air inlet, a contraction pipe section, an expansion pipe section, a negative pressure generation cavity, and an air outlet that may be sequentially communicated, where in a ventilation direction from the air inlet to the air outlet, a pipe diameter of the contraction...