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:
Dec. 04, 1990
Filed:
Mar. 15, 1989
Applicant:
Inventors:
James R Johnson, River Falls, WI (US);
William J Mueller, Colfax, WI (US);
David R Walsh, Menomonie, WI (US);
Assignee:
Hoeganaes Corporation, Riverton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ; B22F / ; B22F / ;
U.S. Cl.
CPC ...
428570 ;
Abstract
Methods for manufacturing compressible and sinterable metal powders are provided by this invention which include contacting core metal particles with a sol of a precursor of a metal. The sol has a viscosity of from about 10-10.sup.5 centipoise and comprises at least 1.0 weight percent of the precursor in a liquid medium. The final coating is produced by removing the liquid from the sol and then converting the precursor to form a substantially uniform layer of a Cu-Ni-Mo alloy on the surfaces of the soft iron or steel core metal particles.