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:
Mar. 20, 2007
Filed:
Jun. 25, 2004
Applicants:
Hieyoung W. OH, Bowdoin, ME (US);
Charles A. King, Falmouth, ME (US);
Inventors:
Hieyoung W. Oh, Bowdoin, ME (US);
Charles A. King, Falmouth, ME (US);
Assignee:
Illinois Tool Works Inc, Glenview, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H05F 3/00 (2006.01); H05F 3/02 (2006.01); H02H 1/00 (2006.01); H02H 1/04 (2006.01); H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A grounding brush for mitigating static electric charge on a motor shaft includes a plurality of filaments secured to an annular frame around the shaft, with tips of the filaments disposed in a channel defined by the frame. Conductive powder can be provided in the channel to improve current flow from the shaft to the filaments.