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:
Jan. 28, 1992
Filed:
Dec. 20, 1990
Applicant:
Inventors:
Tim Harris, Calgary, CA;
Michal Urednicek, Calgary, CA;
Assignee:
Nova Corporation of Alberta, Calgary, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
310 905 ;
Abstract
An axial magnetic bearing includes a rotor overlying a coil in a stator. A second coil is disposed at a location where it does not exert a significant force on the rotor. The second coil generates a magnetic field to oppose and substantially cancel the stray magnetic field generated by the first coil.