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:
Oct. 21, 2003
Filed:
Dec. 21, 1998
William E. Ziegler, Reading, MA (US);
William A. Bauer, St. Mary's, PA (US);
Other;
Abstract
A method for making a carbon commutator assembly by forming an annular carbon cylinder of a conductive carbon composition and metalizing an inner surface of the carbon cylinder by bonding a first layer of metallic material to the inner surface of the carbon cylinder. A metallic substrate is soldered to the metalized inner surface of the carbon cylinder and an insulator hub is disposed in a position supporting the metallic substrate and carbon cylinder. The carbon cylinder and substrate are then segmented by forming radial interstices through the carbon cylinder and the metallic substrate thus forming a carbon/metal commutator array comprising electrically isolated carbon/metal commutator sectors.