Patent ID: 7373716
Filing Date: 2008-05-20
Classification: H01F,Y10S,Y10T

Abstract:
1. A method of building a permanent magnet assembly, comprising: mechanically restraining a plurality of permanent magnet blocks so as to prevent the plurality of permanent magnet blocks from moving with respect to one another; mechanically restraining a first permanent magnet block not in the plurality of permanent magnet blocks from moving in either a first direction relative to the plurality of permanent magnet blocks or in a second direction relative to the plurality of permanent magnet blocks, wherein mechanically restraining the first permanent magnet block from moving in the first direction comprises restraining the first permanent magnet block using a nonmagnetic frame, the first and second directions defining a plane, the first permanent magnet block having a first magnetic orientation; moving the restrained first permanent magnet block with respect to the restrained plurality of permanent magnet blocks, the moving in a third direction not parallel to the plane, the moving to put the first permanent magnet block into a position proximate to the restrained plurality of permanent magnet blocks so as to form a desired angle between the first magnetic orientation and a magnetic orientation of one of the plurality of permanent magnet blocks; further restraining the restrained first permanent magnet block in the position, including deforming the nonmagnetic frame.