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:
Sep. 12, 2023
Filed:
Oct. 13, 2021
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Peter Riegler, Boxberg, DE;
Dominik Bork, Bad Mergentheim, DE;
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Abstract
A fan () has a rotor () and a fan impeller (). The rotor () has a connecting portion () and the fan impeller () has a fastening portion (). The impeller is centered relative to the rotor () with the fastening portion () on the connecting portion () by at least one centering element (). The impeller is fixed to the rotor () by at least one fastening element (). The fastening element () is a screw with a screw head (), a threaded portion (), and a shaft arranged between the threaded portion () and the screw head (). A spacer sleeve () is arranged around the shaft. A thread () corresponding to the fastening element () is, respectively, formed in the connecting portion ().