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:
Jan. 23, 1990
Filed:
Jun. 14, 1988
Applicant:
Inventors:
John W Souter, Autumn, GB;
Michael C Nottingham, Westbrook, GB;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; H01R / ;
U.S. Cl.
CPC ...
428670 ; 204 446 ; 428672 ;
Abstract
A surface for providing an electrically conductive surface coating on an electrical contact body. The process resulting in such a coating comprises the steps of depositing upon the body surface in sequence, (a) a nickel layer, (b) a first gold layer, (c) a palladium/nickel alloy layer which may be an alloy containing nickel up to a proportion of 50% by weight, and (d) a second gold layer. All the layers may be deposited by an electrodeposition process. The resulting surface coating has excellent corrosion and wear resistance properties.