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 Title: |
US5404062:
Magnetic levitation device and method
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Hones, Edward W.; Los Alamos, NM
Hones, William G.; Seattle, WA
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| Assignee: |
Creative Gifts, Inc., Seattle, WA
other patents from CREATIVE GIFTS, INC. (710139) (approx. 3)
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| Published / Filed: |
1995-04-04
/ 1994-02-17
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| Application Number: |
US1994000197845
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| IPC Code: |
Advanced:
H02N 15/00;
Core:
more...
IPC-7:
H02K 7/09;
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| ECLA Code: |
H02N15/00;
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| U.S. Class: |
Current:
310/090.5;
Original:
310/090.5;
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| Field of Search: |
335/302-306
310/90.5
446/255-264,129-139
033/316-330,355 R-355 D
104/283
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| Priority Number: |
| 1994-02-17 |
US1994000197845 |
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| Abstract: |
A magnetic levitation device and method of levitating a magnet without mechanical restraining elements are disclosed. The levitation device comprises a first magnet with a polygonal, preferably square, periphery and a substantially planar upper surface magnetized normal thereto and a second magnet with an apparatus to rotate or spin the same. The second magnet is rotated or spun on a lifter plate disposed on the upper surface of the first magnet with like polar orientations of the magnets in confronting relation. When the lifter plate is raised above the first magnet the spinning second magnet levitates above the first magnet and the lifter plate and the lifter plate is removed from between the first and second magnets. The weight of the second magnet may be varied to change the height above the first magnet at which the second magnet levitates.
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| Attorney, Agent or Firm: |
Wigman, Cohen, Leitner & Myers ;
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| Primary / Asst. Examiners: |
Picard, Leo P.; Barrera, Raymond M.
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| INPADOC Legal Status: |
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| Family: |
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First Claim:
Show all 20 claims |
We claim:
1. A levitation device comprising:
- a first magnet having a first axis, a polygonal periphery and a substantially planar first surface, said first magnet being magnetized normal to said first surface and parallel to said first axis such that said first surface has a first polar orientation;
- a second magnet having a second axis and a second surface, said second magnet being magnetized normal to said second surface and parallel to said second axis such that said second surface has the same polar orientation as the first surface of the first magnet; and
- means for rotating said second magnet about the second axis whereby when said second magnet is rotated and disposed vertically above said first magnet with the first and second surfaces in confronting relation, said second magnet levitates over said first magnet.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 9 U.S. patent(s) that reference this one
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