US Patent Issued on April 21 for "Pressure actuated diaphragm pump" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,181, issued on April 21.

"Pressure actuated diaphragm pump" was invented by Yushi Maruyama (Tokyo), Toshimitsu Kuzuoka (Tokyo) and Toshihisa Nemoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diaphragm pump includes a discharge chamber, a diaphragm configured to be actuated by a pulsation pressure, a fuel flow path fluidly coupled with the discharge chamber, and a fuel chamber located on the fuel flow path. The diaphragm includes a diaphragm actuating portion forming a part of the discharge chamber, and configured to suction fuel into the discharge chamber and to discharge the fuel from the discharge chamber in response to being actuate...