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. 28, 2026
Filed:
Oct. 24, 2024
Aktiebolaget Skf, Gothenburg, SE;
Mathieu Hubert, Ann Arbor, MI (US);
Gene Arthur Kovacs, Brighton, MI (US);
David Christopher Rybski, White Lake, MI (US);
Alberto Carlevaris, Turin, IT;
AKTIEBOLAGET SKF, Gothenburg, SE;
Abstract
A grounding brush assembly is for an electric machine include a rotatable shaft having a bore, an outer housing, bearing(s) rotatably coupling the shaft and housing and an electrically-grounded, fixed shaft extending through the rotatable shaft bore. A conductive base member receives the fixed shaft and has a main body portion and at least one end body portion with an outside diameter less than the main body portion outside diameter. A centering bearing is disposed about the end body portion. A conductive brush coupled with the main body portion includes conductive fibers extending radially outwardly from the main body portion and axially along a centerline. Each conductive fiber has an inner radial end coupled with the base member and an outer radial end engageable with the inner circumferential surface of the rotatable shaft such that at least one conductive path extends from the rotatable shaft to the fixed shaft.