US Patent Issued on Feb. 17 for "Pressure regulating valve with piston" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,530, issued on Feb. 17.

"Pressure regulating valve with piston" was invented by Nobuo Tojo (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pressure regulating valve includes a body having a pressure regulating chamber into which a working liquid flows and an attachment hole fluidly coupling with the pressure regulating chamber, a valve seat assembly fitted in the attachment hole, wherein the valve seat assembly includes a surplus liquid discharge path fluidly coupled with the pressure regulating chamber, a piston configured to open and close an opening of the surplus liquid discharge path in the pressure regulating chamber, a valve seat seal...