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:
Apr. 21, 2020
Filed:
Oct. 08, 2015
Ebara Corporation, Tokyo, JP;
Masashi Obuchi, Tokyo, JP;
So Kuroiwa, Tokyo, JP;
Dai Sakihama, Tokyo, JP;
Renato Groppo, Cles, IT;
Fabio Balbo, Cles, IT;
Mariano Matteazzi, Cles, IT;
Lucio Cardillo, Rome, IT;
Alessandro Corsini, Rome, IT;
Giovanni Delibra, Rome, IT;
Franco Rispoli, Rome, IT;
Ebara Corporation, Tokyo, JP;
Abstract
An impeller assembly for centrifugal pumps has two disk members that have different diameters, are arranged coaxially to a rotation axis and face each other so as to form an interspace; blades are radially arranged in the interspace; the two disk members are also centrally provided with a fastening means for fastening to a transmission shaft, which rotates about the rotation axis. The particularity of the present invention resides in having contoured vanes that protrude radially from the peripheral region of the disk member that has the smallest diameter and are arranged substantially at the blades.