ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,185, issued on May 19, was assigned to Gregg Keener (Ashland, Ohio).
"Submersible pump with external slicer" was invented by Robert Keener (Ashland, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A submersible pump (10) suitable for pumping liquid that includes suspended solids such as sewage, includes a housing (12) with a motor (34) and a pump chamber (66). The motor rotates an impeller (72) within the pump chamber and a slicer (92) that operates to slice solids before they enter the pump chamber into smaller pieces. The impeller vanes (130) have a vane height (H) that is at least 30% of the impeller diameter (D). The impeller has a continuous...