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. 01, 1986
Filed:
Dec. 06, 1984
Applicant:
Inventors:
Horst Heidsiek, Jalan Kilang Timor, DE;
Hartmuth Schmidt, Ostercappeln, DE;
Assignee:
Degussa Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
428670 ; 928929 ; 470463 ; 470580 ; 470589 ; 200266 ; 3392 / ;
Abstract
Low voltage current contacts should have good tarnish resistance and resistance to wear at the smallest possible gold content. Such materials consist of 330 to 50 wt. % palladium, 18 to 48 wt. % silver, 19 to 33 wt. % gold, 0.01 to 1 wt. % iridium, osmium, or a mixture of iridium and osmium and either 0.5 to 5 wt. % lead or a mixture of 0.5 to 3 wt. % lead and 0.1 to 3 wt. % tin.