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:
Jul. 20, 2004
Filed:
Sep. 03, 1999
Albert Hartman, Palo Alto, CA (US);
Wendy Lorimer, San Jose, CA (US);
Maxtor Corporation, Longmont, CO (US);
Abstract
A manufacturing fixture ( ) for manufacturing a permanent magnet ( ) for an actuator motor ( ) of a disk drive ( ) is provided herein. The manufacturing fixture ( ) includes a fixture cavity ( ) which receives the magnet powder ( ) and an orientating device ( ) which generates flux lines ( ) which extend across the fixture cavity ( ). The fixture cavity ( ) includes a cavity axis ( ), a cavity transition ( ) and a cavity perimeter ( ). Importantly, the flux lines ( ) extend substantially transverse to the cavity axis ( ) near the cavity transition ( ) and the cavity perimeter ( ) and substantially parallel with the cavity axis ( ) intermediate the cavity transition ( ) and the cavity perimeter ( ). This allows for a magnet ( ) having higher magnetic flux densities at the sides ( ) ( ) ( ), and higher average magnetic flux densities in the magnet ( ).