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:
Aug. 28, 2001
Filed:
Feb. 16, 2000
Martin Burgbacher, St. Georgen, DE;
Frank Jeske, St. Georgen, DE;
Papst-Motoren GmbH & Co. KG, St. Georgen, DE;
Abstract
An electronically commutated claw pole motor has an external rotor (,) with a shaft (,) and a rotor magnet (,). The claw pole motor contains a stator (,) which has a first soft ferromagnetic stator pole piece (,) located on its side facing away from the external rotor (,). The stator pole piece is provided with first claw poles (,) projecting toward the external rotor (,). The stator has a second soft ferromagnetic stator pole piece (,) located on its side facing the external rotor (,). The second soft ferromagnetic pole piece is provided with second claw poles (,) extending from the external rotor (,) and having a larger axial extension (h,) than the first claw poles (,) and projecting into gaps (,) between the first claw poles (,). An axial bearing (,) supports the end (,) of the shaft (,) which faces away from the external rotor (,). In order to generate a magnetic force (F) acting on this bearing, the rotor magnet is displaced, relative to the stator (,), in a direction away from the axial bearing (,).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile