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:
Nov. 01, 1977
Filed:
Nov. 10, 1975
Applicant:
Inventors:
Richard C Bevington, Delmont, PA (US);
David J Snee, Murrysville, PA (US);
Assignee:
Gibson Electric, Inc., Delmont, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
428565 ; 75206 ; 7517 / ; 7520 / ; 200265 ; 200266 ; 200268 ; 428548 ; 428929 ; 75228 ; 75230 ;
Abstract
Electrical contact material of silver or mixtures of silver and a thermally decomposable compound of silver having an additive of an alkali metal, for example lithium, added in the form of a salt prior to sintering to increase the as-sintered density of the resulting material and to aid in the prevention of undesirable surface blisters. The silver material may be fabricated as a backing layer on a primary contact material of silver-cadmium oxide.