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.

Date of Patent:
Sep. 30, 2003

Filed:

May. 08, 2002
Applicant:
Inventors:

William A. Lynch, Philadelphia, PA (US);

Neal A. Sondergaard, Severna Park, MD (US);

Thomas H. Fikse, West Chester, PA (US);

Lynn J. Petersen, Oxford, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/300 ;
U.S. Cl.
CPC ...
H02K 1/300 ;
Abstract

A serpentine-shaped spring device having an internal core made of braided wires coated with elastomeric material for environmental protection and to enhance exertion of a low holding spring pressure on a metal fiber brush, when the spring device is suitably anchored at a stationary location to hold the brush in contact with a rotor during rotation thereof while conductively transferring electrical current thereto from the core of the spring device.


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