US Patent Issued to CHINA NORTH STANDARDIZATION CENTER on May 19 for "Equivalent test method of piston vibrating machine and rocker-arm vibrating machine applied in half breakdown time test" (Chinese Inventor)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,536, issued on May 19, was assigned to CHINA NORTH STANDARDIZATION CENTER (Beijing).

"Equivalent test method of piston vibrating machine and rocker-arm vibrating machine applied in half breakdown time test" was invented by Lyubo Mai (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "An equivalent test method of a piston vibrating machine and a rocker-arm vibrating machine applied in half breakdown time test, including: selecting three grades of samples in the same size specification; separately selecting frequencies of the piston vibrating machine and the rocker-arm vibrating machine; estimating impact times of the two vibrating machines for thr...