US Patent Issued to METRO ENGINEERING on May 26 for "Gravel circulation dry electrostatic precipitator" (South Korean Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,660, issued on May 26, was assigned to METRO ENGINEERING Co. LTD. (Incheon, South Korea).

"Gravel circulation dry electrostatic precipitator" was invented by Kyeong Joon Kim (Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gravel circulation dry electrostatic precipitator includes: a drying unit (S1) which conveys and uniformly mixes, heats, and dries recycled aggregates, containing a large amount of moisture, among the materials of asphalt-concrete; a first dust collection and purification unit (S2); a second dust collection and purification unit (S3) in which fine dust, remaining after the odor-inducing substances, harmful...