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. 20, 2020
Filed:
Dec. 07, 2016
Grundfos Holding A/s, Bjerringbro, DK;
Steen Mikkelsen, Bjerringbro, DK;
Niels Due Jensen, Bjerringbro, DK;
Brian Lundsted Poulsen, Langå, DK;
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Abstract
A multistage centrifugal pump has a foot part () and a head part (), between which pump stages are integrated. The head part () and the foot part () are connected via tie-rods () which with one end are fastened on the head part () and with the other end are fastened on the foot part (). The tie-rods () at one end comprise a thread (), with which they are tightened on the head part (). The tie-rods () are formed from sheet metal. At the end opposite the thread, the tie-rods include a recess, with which recess the tie-rods are each positively fixed on the foot part (), at least in the tensile direction ().