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:
Sep. 22, 1981
Filed:
Sep. 30, 1980
Applicant:
Inventor:
Maurice A Clegg, Fort Saskatchewan, CA;
Assignee:
Sherritt Gordon Mines Limited, Toronto, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148101 ; 75 / ; 75 / ; 148105 ; 148126 ; 252 6255 ;
Abstract
A process for producing cobalt-rare earth alloy powders suitable for forming into permanent magnets includes mixing cobalt powder particles having refractory oxide dispersoid powder particles fixed in the surfaces of the cobalt particles with particles of a rare earth element in a proportion corresponding to the composition of the alloy to be formed. The mixture is heated to cause the cobalt-dispersoid particles and the rare earth particles to form the desired alloy by diffusion with substantially no sintering.