ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,168, issued on May 27, was assigned to MIKUNI Corp. (Tokyo).
"Rotary valve device" was invented by Shoichi Ishiguchi (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The rotary valve device includes a valve 30, a housing H having a joining surface 14b1 located at ends of a fitting hole 14a and a through hole 16, a thermostat 110 partially accommodated in the through hole 16, a cylindrical seal member 80, an urging spring 90, and a passage member 60. The passage member 60 includes a cylindrical holding member 61 that is fitted into the fitting hole 14a and holds the cylindrical seal member 80 and the urging spring 90, and a connector m...