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. 29, 1980
Filed:
Aug. 03, 1977
Applicant:
Inventors:
Rudolf Scherbaum, Regensburg, DE;
Bernhard Rothkegel, Nuremberg, DE;
Horst Schreiner, Nuremberg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
51316 ; 51317 ; 134 / ; 134-7 ; 134 39 ;
Abstract
In order to generate a graphite free, solderable surface on a contact piece for electric contacts, which consists of silver with graphite particles up to about 5% by weight finely and uniformly distributed therein, the contact piece is subjected to a wet scouring treatment, simultanouesly using scouring stones.