US Patent Issued to CHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTRUMENT on June 30 for "Construction surface flatness detector" (Chinese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,328, issued on June 30, was assigned to CHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTRUMENT Co. LTD (Changzhou City, China).

"Construction surface flatness detector" was invented by Ou Zhang (Changzhou, China), Weiping Zhu (Changzhou, China) and Kai Fei (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to the field of building construction, in particular to construction detection equipment. The present disclosure relates to a construction surface flatness detector, which comprises a housing mounted on a base. An inclination adjustment mechanism, a levelness calibration unit, a height adjustment mechanism and a...