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:
Feb. 04, 2025
Filed:
Nov. 19, 2020
Applicant:
Grundfos Holding A/s, Bjerringbro, DK;
Inventor:
Niels Erik Linnemann Nielsen, Bjerringbro, DK;
Assignee:
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/107 (2006.01); F04C 14/06 (2006.01); F04C 15/00 (2006.01);
U.S. Cl.
CPC ...
F04C 2/1075 (2013.01); F04C 14/06 (2013.01); F04C 15/0046 (2013.01); F04C 2240/10 (2013.01); F04C 2240/802 (2013.01); F05C 2251/02 (2013.01);
Abstract
An eccentric screw pump with a rotor () and with a rotationally fixed stator (') surrounding the rotor (). The rotationally fixed stator includes at least one elastomeric portion, wherein a pressure chamber () is arranged on this elastomeric portion of the stator (′) at a side facing away from the rotor (). The pressure chamber () is connected to a pressure region of the eccentric screw pump such that the at least one elastomeric portion of the stator (′) is subjected to a pressure produced by the eccentric screw pump.