US Patent Issued to GUANGDONG WELLING MOTOR MANUFACTURING on May 5 for "Electronic expansion valve and refrigeration device" (Chinese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,476, issued on May 5, was assigned to GUANGDONG WELLING MOTOR MANUFACTURING Co. LTD. (Foshan, China).

"Electronic expansion valve and refrigeration device" was invented by Longhua Huang (Foshan, China), Chao Chen (Foshan, China), Mao Yang (Foshan, China) and Bo Jiang (Foshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic expansion valve and a refrigeration device are provided. The electronic expansion valve has a valve seat, a nut and a connection piece. The valve seat is provided with a valve cavity. One end of the nut is installed in the valve cavity. An outer wall of the nut is provided with an annular position part that extend...