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. 31, 2000
Filed:
Aug. 03, 1999
Siegfried Heer, Kirchdorf/Krems, AT;
TCG Unitech Aktiengesellschaft, Kirchdorf/Krems, AT;
Abstract
A radial impeller for a centrifugal pump with at least one flow channel between an axial flow inlet zone and a substantially radial flow outlet zone, which flow channel is limited by the inside and outside surfaces of at least one rotor blade and by first and second annular channel surfaces which substantially extend transversally to the axis of the radial impeller, face one another and are integrally arranged with the radial impeller. In order to simplify the production of the radial impeller it is provided that the channel surfaces are provided with different diameters, with the smallest diameter of the first channel surface being slightly smaller than the largest diameter of the second channel surface and with preferably the first channel surface being arranged on the side of the inlet zone of the radial impeller.