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:
Feb. 06, 1979
Filed:
May. 31, 1977
Applicant:
Inventors:
Hans G Hirsbrunner, Attleboro, MA (US);
Stephen B Goldman, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75234 ; 75235 ; 200260 ; 200265 ;
Abstract
An electrical contact material comprising a homogeneous, pressed and sintered mixture of from 85 to 90 percent silver metal powder, from 7.5 to 14.3 percent cadmium oxide powder, and from 0.50 to 3.0 percent zinc oxide powder, by weight, and having a weight ratio of zinc oxide to cadmium oxide content in the range from 0.05 to 0.25, is shown to display remarkably improved arc erosion and welding properties.