The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2022
Filed:
Mar. 12, 2019
Grundfos Holding A/s, Bjerringbro, DK;
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Abstract
A centrifugal pump assembly includes an electrical drive motor (), with at least one impeller () which is driven by the motor and a pump casing () which surrounds the impeller () and which includes at least one suction connection () and at least two delivery connections (). A rotatable valve element (″) is arranged in the pump casing (). The valve element is movable between at least two switching positions, in which the flow paths through the delivery connections () are opened to a different extent. The valve element (″) includes an annular wall () which surrounds the impeller () and in which at least one switching opening () is formed. The valve element (″) is rotatably mounted about a rotation axis (X), which is centric to the annular wall (), inside of the pump casing ().