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:
Apr. 03, 2007
Filed:
Jun. 09, 2005
Applicants:
Alan R. Langhorn, Solana Beach, CA (US);
Zbigniew S. Piec, San Diego, CA (US);
Inventors:
Alan R. Langhorn, Solana Beach, CA (US);
Zbigniew S. Piec, San Diego, CA (US);
Assignee:
General Atomics, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The wear life of flexible copper fiber brushes when used at a positive pole in a direct current motor or generator is improved by the provision of an effective amount of zinc as a sacrificial anode material. Flame-sprayed zinc is applied as a coating to the exterior surface of such a copper fiber pack to bond the fibers with a surrounding metal wire reinforcing wrap, of cross wound copper wire or fine mesh, woven copper wire screen material, and create an improved brush.