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:
Jul. 19, 2022
Filed:
May. 16, 2019
Applicant:
Ebm-papst St. Georgen Gmbh & Co. KG, St. Georgen, DE;
Inventors:
Armin Fleig, St. Georgen, DE;
Gunter Langeneck, Villingen-Schwenningen, DE;
Assignee:
ebm-papst St. Georgen GmbH & Co. KG, St. Georgen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/06 (2006.01); F04D 29/056 (2006.01); F16D 41/02 (2006.01);
U.S. Cl.
CPC ...
F04D 25/06 (2013.01); F04D 29/056 (2013.01); F16D 41/02 (2013.01); F05D 2260/40 (2013.01); F05D 2260/90 (2013.01);
Abstract
A blocking device () for a fan that blocks a direction of rotation of a rotor (), via which a wheel of the fan can be driven. The blocking device has a bearing tube (), a rotor shaft () and a freewheel sleeve (). The freewheel sleeve () is accommodated in the bearing tube () and is connected to the rotor shaft (), which extends through the freewheel sleeve (), for conjoint rotation. The freewheel sleeve () blocks rotation of the rotor shaft () at least in relation to the bearing tube () in the direction of rotation of the rotor.