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. 10, 1990
Filed:
Nov. 27, 1987
Applicant:
Inventors:
Vijay K Chandhok, Pittsburgh, PA (US);
Bao-Min Ma, Pittsburgh, PA (US);
Assignee:
Crucible Materials Corporation, Pittsburgh, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ; B22F / ;
U.S. Cl.
CPC ...
264112 ; 29607 ; 29608 ; 722531 ; 148101 ; 264D / ; 419-8 ;
Abstract
A method for producing a noncircular magnet having asymmetric magnetic properties along axes thereof. A particle charge of composition from which the magnet is to be produced is placed in a container, heated and extruded within the container to compact the particle charge to substantially full density. The particle charge may include at least one rare earth element. The particle charge may be extruded through a noncircular extrusion die, specifically a rectangular die.
Chandhok, Vijay. (1990). Method for producing a noncircular permanent magnet (U.S. Patent No. 4915891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4915891
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile