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. 25, 2025
Filed:
Sep. 30, 2021
Applicant:
Frideco Ag, Neunkirch, CH;
Inventors:
Patrick Flueckiger, Neunkirch, CH;
Andreas Bruno Würms, Neunkirch, CH;
Assignee:
Frideco AG, Neunkirch, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/22 (2006.01); F04D 1/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/2216 (2013.01); F04D 1/00 (2013.01);
Abstract
An impeller wheel, in particular for a centrifugal pump, has in at least one side view perpendicular to a rotary axis an outer contour that is spaced apart radially from the rotary axis, the outer contour comprising a first contour line which is inclined relative to the rotary axis by a first angle, and comprising a second contour line which directly follows the first contour line and is inclined relative to the rotary axis by a second angle, the second angle being by at least 0.05° and maximally 2° smaller than the first angle.