US Patent Issued to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES on May 27 for "Variable-speed integrated machine and wellsite apparatus" (Chinese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,059, issued on May 27, was assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES Co. LTD. (Yantai, China).

"Variable-speed integrated machine and wellsite apparatus" was invented by Shuzhen Cui (Shandong, China), Rikui Zhang (Shandong, China) and Sheng Chang (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A variable-speed integrated machine and a wellsite apparatus are disclosed. The variable-speed integrated machine includes: a driving device which includes an electric motor and a housing; an inversion device which is disposed on the housing and electrically connected with the electric motor; an inversion heat dissipating devi...