US Patent Issued to Yu Ching Cheng on Dec. 9 for "Contactor and general switching device comprised thereof" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,332, issued on Dec. 9, was assigned to Yu Ching Cheng (Hong Kong).

"Contactor and general switching device comprised thereof" was invented by Yu Ching Cheng (Lantau, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A contactor includes an enclosed space containing an arc extinguishing medium or a vacuum, separated into two chambers by a movable contact head connected with hollow contact units enabling the two chambers to communicate; at least one of the chambers is provided with a static contact head connected with contact units; the movable contact head implements reciprocal movement, the contact units of the movable contact head are engaged...