Permanent magnet ring

Details Permanent magnet ring Permanent magnet ring

2008-05-13

2008-05-13

Bernatz, Kevin M. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C063S003100, C063S003200, C063S041000, C063S900000, C428S033000, C428S357000, C428S403000, C428S542200

Reexamination Certificate

active

07371472

ABSTRACT:
In a permanent magnet ring (1) formed by arranging a plurality of unit permanent magnets (21a,21b,21c. . . ), each of a plurality of the unit permanent magnets (21a,21b,21c. . . ) is formed in a circular cylindrical shape having a circular cross section, and a predetermined number of the unit permanent magnets are magnetically attracted each other so as to form a ring shape having a predetermined size, so that it is possible for the user to easily structure the permanent magnet ring (1) having a desired size, and it is possible to attach as many the unit permanent magnets as possible so as to be able to apply proper magnetic force lines to each part of the body.

REFERENCES:
patent: 3885383 (1975-05-01), Tanaka
patent: 4067783 (1978-01-01), Okinaka et al.
patent: 4095587 (1978-06-01), Ishikawa
patent: 4517217 (1985-05-01), Hoffman
patent: 4981532 (1991-01-01), Takeshita et al.
patent: 5195335 (1993-03-01), Hart
patent: 5347253 (1994-09-01), Ogikubo
patent: 5535603 (1996-07-01), Hayakawa
patent: 6427486 (2002-08-01), Yellen
patent: 6634067 (2003-10-01), Jacobson
patent: 2004/0111005 (2004-06-01), Lu
patent: 2005/0148809 (2005-07-01), Delaney
patent: 2285222 (1995-07-01), None
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patent: 3021225 (1995-11-01), None
patent: 3033643 (1996-11-01), None
patent: 11-103915 (1999-04-01), None
Web article titled “Rare-earth magnet” (Rare-earth magnet—Wikipedia, the free encylocpedia, modified Jan. 17, 2006).
English Translation of JP 11-103915 A (PTO 2006-4245).
Magnetism FAQs (http://www.matchrockets.com/ether/magfaqs.html), updated Jan. 24, 2002, pp. 1-9.
Electromagnetics Explained (Ron Schmitt, 2002 by Elsevier Science, USA), pp. 51-74.
English Translation of JP 11-103915 A (PTO 07-2945).

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