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:
Aug. 19, 2003
Filed:
Oct. 09, 1997
Applicant:
Inventors:
Edward W. Hones, Los Alamos, NM (US);
William G. Hones, Seattle, WA (US);
Assignee:
Creative Gifts, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/09 ;
U.S. Cl.
CPC ...
H02K 7/09 ;
Abstract
An improved magnetic levitation device has a first base magnet with a partially demagnetized central region over which a second dipole magnet is spun or rotated so as to levitate above the first magnet. The levitation device may be calibrated for stability and height of levitation of the second magnet by selected demagnetization of portions of the first magnet.