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:
May. 04, 1993
Filed:
Jan. 16, 1992
Harry C Barber, Chesterfield, VA (US);
Kenneth P Green, Lurenburg, VA (US);
Otway A Southall, Farmville, VA (US);
Carbone-Lorraine of North America, Parsippany, NJ (US);
Abstract
A commutating brush assembly for rotating electrical equipment is constructed to suppress electromagnetic/radio frequency interference emissions, particularly in the radio frequency range. This is achieved by fabricating the EMI/RFI suppressing brush holder assembly from a material that itself suppresses EMI/RFI emissions generated by electromagnetic apparatus such as motors, generators, rotary switch gears, etc. The EMI/RFI emission suppression capability of the novel assembly may be further enhanced by the addition of certain add-on electrical components such as capacitors or radio frequency choke coils and the like.