US Patent Issued to GRUNDFOS HOLDING on May 27 for "Pump device with a centrifugal pump and a mixing unit" (Danish Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,324, issued on May 27, was assigned to GRUNDFOS HOLDING A/S (Bjerringbro, Denmark).

"Pump device with a centrifugal pump and a mixing unit" was invented by Jens Hald (Bjerringbro, Denmark), Klaus Frederiksen (Bjerringbro, Denmark) and Bent Ole Emdal Domino (Bjerringbro, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pump device (1) comprises a centrifugal pump (2) and a mixing unit (4) in which two fluids are mixed. The mixing unit (4) comprises a flapper valve (10) configured to move between a first and a second position in which it closes a first inlet (7) and a second inlet (8) of the mixing unit, respectively. At least one of the inlet...