ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,409, issued on May 5, was assigned to Vortex Pipe Systems LLC (Austin, Texas).
"Submersible pump" was invented by Paul Wayne Schmidt (Carlton, Ore.) and Avijit Ghosh (Austin, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A submersible pump comprises a rotational assembly and a rotational assembly housing. The rotational assembly has a plurality of in-line flow inducing sections. A centerline longitudinal axis of each of the flow inducing sections extends colinearly with a rotational axis of the rotational assembly. A downstream end portion of a flow pressurizing section is engaged with an upstream end portion of a rotational flow amplification ...