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:
Sep. 21, 2004
Filed:
Sep. 17, 2002
Heinrich Groos, Herborn, DE;
Bernd Barthel, Herborn, DE;
Tobias Noethe, Herborn, DE;
Christoph Dietrich, Herborn, DE;
Berkenhoff GmbH, Heuchelheim, DE;
Abstract
In order to achieve a reduction in wear of the wire guide rollers, apart from an improvement in the cutting speed and an improvement in current conduction, a wire electrode for spark erosion cutting of metals etc., comprising either a homogenous center ( ) made of a metal or of a metal alloy, or a composite center, is provided with a sheath coating ( ) whose surface is structured, wherein the indentations ( ) created by the structure, are filled by a filler ( ) made of an easily vapourable metal or of a metal alloy, so as to achieve a surface with little peak-to-valley height, i.e. with little surface roughness.