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:
Jul. 17, 1979
Filed:
Mar. 22, 1978
Applicant:
Inventor:
Akira Shibata, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
7517 / ; 7517 / ;
Abstract
Internally oxidized Ag-Sn alloy electrical contact materials have their electrical characteristics improved by being compounded with other Ag alloys containing metal elements which are in solid solution with Ag and are internally oxidizable. Compounds obtained in accordance with this invention include microscopic silver grain matrices containing Sn oxides and other silver grain matrices which contain metallic oxides of the said other Ag alloys and are intercoalesced with each other and with the first mentioned silver grain matrices, and present macroscopically improved electric characteristics as if they were a single alloy.