US Patent Issued to CH Creative on Sept. 9 for "Pump with variable suction/discharge amount and drive device composed of the pump and driving method thereof" (Taiwanese Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,793, issued on Sept. 9, was assigned to CH Creative Co. Ltd. (Taipei, Taiwan).

"Pump with variable suction/discharge amount and drive device composed of the pump and driving method thereof" was invented by Jui-Cheng Chang (Keelung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pump with variable suction/discharge amount and a transmission drive device and a driving method thereof. The pump is a rotary vane pump having a vane chamber body. The vane chamber body is composed of a fixed wall member, a movable wall member, a movable vane chamber sleeve and a vane rotor. The vane chamber is extendable/retractable in an axial direction of the va...