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:
Jul. 05, 2022
Filed:
Nov. 18, 2016
Applicant:
Grundfos Holding A/s, Bjerringbro, DK;
Inventors:
Erik Bundesen Svarre, Bjerringbro, DK;
John Frigård Nielsen, Fårup, DK;
Finn Ulrich Storgaard, Bjerringbro, DK;
Iraj Babazadeh, Hjortshøj, DK;
Assignee:
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 1/06 (2006.01); F04D 29/62 (2006.01); F04D 29/42 (2006.01); F04D 29/041 (2006.01); F04D 13/02 (2006.01); F04D 17/08 (2006.01); F04D 25/02 (2006.01); F04D 29/043 (2006.01); F04D 29/046 (2006.01); F04D 29/053 (2006.01); F04D 29/056 (2006.01); F04D 29/10 (2006.01);
U.S. Cl.
CPC ...
F04D 29/624 (2013.01); F04D 1/06 (2013.01); F04D 13/02 (2013.01); F04D 17/08 (2013.01); F04D 25/02 (2013.01); F04D 29/043 (2013.01); F04D 29/046 (2013.01); F04D 29/0416 (2013.01); F04D 29/053 (2013.01); F04D 29/056 (2013.01); F04D 29/102 (2013.01); F04D 29/106 (2013.01); F04D 29/426 (2013.01); F04D 29/4206 (2013.01); F04D 29/628 (2013.01); F05D 2230/72 (2013.01);
Abstract
A multi-stage centrifugal pump includes a pump casing, in which a shaft () carrying an impeller is rotatably arranged. The pump casing has a pump casing foot part () that includes a reversibly closable maintenance opening (), via which a bearing and/or seal (), which is arranged at a shaft end within the pump casing, is accessible and exchangeable.