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. 13, 2021
Filed:
Dec. 03, 2015
Ziehl-abegg SE, Künzelsau, DE;
Daniel Seifried, Schwäbisch Hall, DE;
Ziehl-Abegg SE, Kunzelsau, DE;
Abstract
The invention relates to an axial ventilator comprising an external or an internal rotor motor that has a rotor (), at least two blades () with end-side connection regions () being connected form- and force-fittingly to said rotor () and this connection being achieved by bracing said connection regions () using a clamping ring (). The invention is characterised in that said clamping ring () comprises recesses () that correspond to the number of blades () and form, together with one retainer piece () in each case, receiving portions () for the connection region () of the blades (), said retainer piece () being supported against the rotor () and the clamping ring () being connected, with the inclusion of the connection region () of the blades (), to said rotor (), preferably to a flange () formed on the rotor () or to a hub (), etc.