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. 19, 1978
Filed:
May. 31, 1977
Applicant:
Inventors:
Teuvo J Santala, Attleboro, MA (US);
Hans G Hirsbrunner, Attleboro, MA (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252514 ; 75234 ; 7517 / ; 200265 ; 200266 ;
Abstract
An electrical contact material comprises from about 85 to 87.5 percent silver and from about 0.01 to 0.10 percent cobalt in the form of an oxide, by weight. The material also comprises from about 10.73 to 12.82 percent cadmium oxide, from about 1.6 to 2.0 percent zinc oxide, and from about 0.15 to 1.0 percent lead oxide, by weight, internally oxidized in situ in the contact material in an oxygen enriched atmosphere.