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:
May. 26, 2020
Filed:
Mar. 22, 2018
Applicant:
Ebm-papst Mulfingen Gmbh & Co. KG, Mulfingen, DE;
Inventors:
Martin Baer, Mulfingen, DE;
Erhard Gruber, Satteldorf, DE;
Oliver Haaf, Kupferzell, DE;
Alexander Konzal, Igersheim, DE;
Assignee:
ebm-papst Mulfingen GmbH & Co. KG, Mulfingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/34 (2006.01); F04D 29/32 (2006.01); F04D 29/64 (2006.01); F04D 29/38 (2006.01); F04D 19/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/34 (2013.01); F04D 29/325 (2013.01); F04D 29/388 (2013.01); F04D 29/646 (2013.01); F04D 19/005 (2013.01); F05D 2250/292 (2013.01); F05D 2260/941 (2013.01);
Abstract
A connecting element () interacting with a fan blade () to transfer torque of a drive to the fan blade (). An attachment portion () connects the connecting element () with the fan blade. The attachment portion () forms an outer edge portion () adjoining the outer contour of the connecting element (). The attachment portion () cross-sectional shape is designed to taper toward the outer edge in at least some portions.