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:
Feb. 10, 2026
Filed:
Dec. 23, 2020
Weg Equipamentos Elétricos S.a., Jaraguá do Sul, BR;
Fernando Andre Lindroth Dauner, Jaraguá do Sul, BR;
Samuel Santos Borges, Jaraguá do Sul, BR;
Douglas Eyng Fritzen, Jaraguá do Sul, BR;
Cassiano Antunes Cezario, Jaraguá do Sul, BR;
WEG EQUIPAMENTOS ELÉTRICOS S.A., Jaragua Do Sul, BR;
Abstract
A rotary electric machine is provided that includes a housing that forms an internal cavity that houses a rotor/stator assembly, in which the rotor is positioned on a main shaft of the machine, a lubricating fluid reservoir defining a hub portion defining an inner surface, and at least one roller bearing coupled to the main shaft and supported by the hub portion and by a bushing. The machine includes an oil ring fastened to the bushing and arranged between the main shaft of the machine and the inner surface of the hub portion, wherein the oil ring includes a wall having a substantially circular cross section and at least one elongate and inclined projection on an outer surface of the wall, each elongate and inclined projection having a lower edge and an upper edge and in which the rotation of the oil ring generates a pressure difference between the lower edge and the upper edge to force the lubricant towards the at least one roller bearing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile