US Patent Issued to Flowserve on Nov. 25 for "Mechanism for maintaining integrity of permanent magnets in directly driven sealless pumps and turbines" (American, German Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,519, issued on Nov. 25, was assigned to Flowserve Pte. Ltd. (Singapore).

"Mechanism for maintaining integrity of permanent magnets in directly driven sealless pumps and turbines" was invented by Andreas Dreiss (Geestland, Germany), Neil Havrilla (Coplay, Pa.) and Zachary Dennis (Emmaus, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An integral motor pump (IMP) or turbine (IMT) applicable to a low temperature process liquid, such as liquid hydrogen, includes an impeller having an annular ring of permanent magnets attached thereto passing in axial proximity to a plurality of stator coils. The magnet ring is radially bounded by inner and outer com...