US 12,231,007 B2
Systems and methods to mitigate electrical voltage on a rotating shaft immersed in oil
Matthew Roman, Glenview, IL (US); and Richard Nye, Glenview, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Jun. 25, 2021, as Appl. No. 17/358,265.
Claims priority of provisional application 63/046,993, filed on Jul. 1, 2020.
Prior Publication US 2022/0006367 A1, Jan. 6, 2022
Int. Cl. H02K 11/40 (2016.01); H01R 39/12 (2006.01); H01R 39/22 (2006.01)
CPC H02K 11/40 (2016.01) [H01R 39/12 (2013.01); H01R 39/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A grounding brush assembly to mitigate electric current in a rotating shaft in the presence of a viscous medium, the grounding brush assembly comprising a first conductive filament having a first length and a second conductive filament having a second length, the first and second conductive filaments extending in a common direction radially inward toward the rotating shaft,
wherein the first and second conductive filaments are configured to extend through the viscous medium surrounding the rotating shaft to be in physical and electrical contact with the rotating shaft when the brush assembly is disposed proximate the rotating shaft.