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. 26, 1991
Filed:
Jul. 13, 1989
Applicant:
Inventors:
Herbert Appl, Krailing, DE;
Michael Gnann, Pfaffenhofen, DE;
Wolfgang Jahr, Wolfratshausen, DE;
Erwin Rossberger, Grossdingharting, DE;
Assignee:
Peroxid-Chemie GmbH, Hoellriegelskreuth, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; B23K / ; B23K / ;
U.S. Cl.
CPC ...
228175 ; 228190 ; 228201 ; 228214 ; 228234 ; 228237 ; 296235 ; 429218 ;
Abstract
A composite electrode based on a valve metal with a layer of a platinum foil securely adhering thereto is produced by hot isostatic pressing of the valve metal base and platinum foil between separating sheets; the separating sheet which comes in contact with the platinum foil during hot isostatic pressing is a metal with a melting point of at least 100.degree. C. above the hot isostatic pressing temperature.