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:
Dec. 08, 1998
Filed:
Aug. 16, 1996
Applicant:
Inventors:
Guenther Henning, Berlin, DE;
Ursula Michelsen-Mohammadein, Berlin, DE;
De Marc Vogelaere, Berlin, DE;
Josef Weiser, Hohenschaeftlarn, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
428378 ; 428379 ; 428389 ; 428375 ; 252514 ; 2525181 ; 2525203 ;
Abstract
A layer of silver-metal oxide, a layer of gold or a gold alloy and, a layer of rhodium or ruthenium are electrolytically produced on a metal base, preferably in the form of a wire. The gold alloy is partially diffused into the silver-metal oxide layer by an annealing process at a temperature between 300.degree. and 900.degree. C. As a result, a low-impedance and burn-up resistant contact coated element is provided for employment in weak current relays.