ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,977, issued on Nov. 4, was assigned to WILO SE (Dortmund, Germany).
"Cutting ring for solids-loaded fluid of a pump" was invented by Johannes Reuschel (Dortmund, Germany), Benjamin Wegner (Dortmund, Germany), Andreas Zeiss (Dortmund, Germany) and Thomas Keil (Dortmund, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Subject matter of the invention is a cutting ring for solids-loaded fluid of a pump, comprising a cutting ring base body forming an opening for cooperation with a cutting head, which cutting ring can be stationarily connected to the pump in an axial extension of an impeller of the pump, wherein a plurality of cutting teeth comprisi...