US Patent Issued to HITACHI-JOHNSON CONTROLS AIR CONDITIONING on Sept. 8 for "Compressor" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,689, issued on Sept. 8, was assigned to HITACHI-JOHNSON CONTROLS AIR CONDITIONING INC. (Tokyo).

"Compressor" was invented by Nina Liu (Tokyo), Damon Wang (Tokyo), Jason Peng (Tokyo) and Jiehao Hu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor with fixed and orbiting scrolls and the fixed scroll is provided with an exhaust hole for the compression chamber. The check valve comprises a valve seat, a valve plate, and a limiting plate. The valve seat comprises a base and at least two bosses. The base is provided with a first through-hole, the at least two bosses are arranged at intervals around the first through-hole, and gas flow pas...