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:
Apr. 27, 1999
Filed:
Jul. 13, 1995
Applicant:
Inventors:
David L Houck, Towanda, PA (US);
Nelson Kopatz, Sayre, PA (US);
Muktesh Paliwal, Owego, NY (US);
Sanjay Sampath, Coram, NY (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ; B22F / ; B22F / ;
U.S. Cl.
CPC ...
428548 ; 75246 ; 75247 ; 75248 ; 75255 ; 75343 ; 428570 ; 419 30 ; 419 33 ; 419 36 ; 419 38 ; 419 40 ; 419 58 ;
Abstract
A method of making flowable tungsten/copper composite powder by milling an aqueous slurry of a mixture of the desired weight ratio of tungsten powder and copper oxide powder and, optionally, a small amount of cobalt powder, spray-drying the slurry to form spherical, flowable agglomerates, and reducing the agglomerates in a hydrogen atmosphere.