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. 09, 2018
Filed:
Sep. 19, 2013
Sulzer Pumpen Ag, Winterthur, CH;
Matti Koivikko, Kotka, FI;
Kalle Tiitinen, Inkeroinen, FI;
Sami Virtanen, Kotka, FI;
Jussi Matula, Savonlinna, FI;
Sulzer Management AG, Winterthur, CH;
Abstract
The present invention relates to a centrifugal pump, the impeller of which comprises a shroud () with at least one solid and rigid working vane (), and at least one solid and rigid rear vane (), the at least one working vane () having a leading edge region (), a trailing edge region (), a central region (C), a side edge, a pressure face () and a suction face (), the at least one solid and rigid rear vane () having a trailing edge region, a side edge, a pressure face and a suction face. The trailing edge region () of the at least one working vane () is rounded by means of a rounding to have a thickness greater than that in the central region (C).