US Patent Issued to SUMITOMO (SHI) CRYGENICS OF AMERICA on March 18 for "Serially arranged circulating cryocooler system" (Pennsylvania Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,289, issued on March 18, was assigned to SUMITOMO (SHI) CRYGENICS OF AMERICA INC. (Allentown, Pa.).

"Serially arranged circulating cryocooler system" was invented by Stephen B. Dunn (Bethlehem, Pa.) and Santhosh K. Gandla (Allentown, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circulating loop for transporting refrigeration to a remote location is connected serially between a Gifford-McMahon (GM) or GM type Pulse Tube cold head and the compressor. Either high pressure gas from the compressor can flow through the remote heat station before returning to the cold head or low pressure gas can flow from the cold head to the remote heat station ...