US Patent Issued to SHIMADZU on Oct. 27 for "Dual phase difference pump" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,721, issued on Oct. 27, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Dual phase difference pump" was invented by Takuya Kokabu (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dual phase difference pump that can reduce the pulsation of a discharge pressure as much as possible. The dual phase difference pump includes, in series, two gear pump units each including a pair of gears configured to mesh with each other. Shafts of the gear pump units are coupled to each other by using a coupler. The pair of gears mesh with each other without backlash. The coupler is configured to couple the shafts to each other at any one of a plurality of ...