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. 11, 1986
Filed:
Aug. 22, 1983
Applicant:
Inventors:
Wolf-Wigand Albrecht, Bad Harzburg, DE;
Axel Hoppe, Bad Harzburg, DE;
Uwe Papp, Goslar, DE;
Rudiger Wolf, Vienenburg, DE;
Assignee:
Hermann C. Starck Berlin, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75252 ; 29570 ; 419 19 ; 419 37 ; 75255 ;
Abstract
The invention relates to an improvement of the flowability and an increase in the bulk density of high-surface area valve metal powders by means of the addition of finely divided extraneous metal oxides in quantities of up to 5000 ppm, relative to the quantity of metal, before the powder-metallurgical processing of the valve metal powder.