US Patent Issued to Illinois Tool Works on July 22 for "Exhaust gas purification device" (Chinese Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,364,945, issued on July 22, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Exhaust gas purification device" was invented by Yuwei Wang (Suzhou, China) and Yuexin Chen (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses an exhaust gas purification device for purifying exhaust gas in a reflow oven hearth, the exhaust gas purification device comprising: a filtering unit; a filtering component provided in the filtering unit; a controllable gas passage that controllably communicates an interior of the filtering unit with an external environment containing oxygen, the controllable gas passage being confi...