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:
Jun. 07, 2011
Filed:
Jun. 02, 2005
Anthony J. Aiello, Santa Cruz, CA (US);
Klaus D. Kloeppel, Watsonville, CA (US);
Paco Flores, Felton, CA (US);
Ali Khurram, Scotts Valley, CA (US);
Anthony J. Aiello, Santa Cruz, CA (US);
Klaus D. Kloeppel, Watsonville, CA (US);
Paco Flores, Felton, CA (US);
Ali Khurram, Scotts Valley, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Motors having a magnetic force attenuator are described. In some embodiments, the motors comprise a stationary member having a base and a stator, a rotating assembly having a magnet and a magnetic force attenuator to attenuate the magnetic attraction force between the magnet and the base; and a fluid bearing to support rotation of the rotating assembly relative to the stationary member. The magnetic force attenuator typically comprises a material of high magnetic permeability, and modulates the magnetic attraction force between the magnet and the base of the motor.