Magnet assembly, linear actuator, planar motor and...

Details Magnet assembly, linear actuator, planar motor and... Magnet assembly, linear actuator, planar motor and...

2005-12-27

2009-06-02

Leung, Quyen P (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S015000

Reexamination Certificate

active

07541699

ABSTRACT:
This invention relates to a magnet assembly that includes a ferromagnetic member extending in a first direction, an array of magnetized poles of opposite polarity arranged adjacent to each other in the first direction and mounted on the ferromagnetic member, wherein a magnetized pole of the array of magnetized poles includes a plurality of permanent magnets arranged to generate a diverging magnetic field towards the ferromagnetic member. In the magnet assembly, each permanent magnet of the magnetized pole has a magnetic polarization having a non-zero component in the first direction and a non-zero component in a second direction substantially perpendicular to the first direction.

REFERENCES:
patent: 6531793 (2003-03-01), Frissen et al.
patent: 6741332 (2004-05-01), Nishi
patent: 6844695 (2005-01-01), Ebihara et al.
patent: 6943464 (2005-09-01), Hol et al.
patent: 6958808 (2005-10-01), Tanaka et al.
patent: 6998737 (2006-02-01), De Weerdt
patent: 7016020 (2006-03-01), Munnig Schmidt

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