Radial magnetic bearing
Patent 6329733 Issued on December 11, 2001. Estimated Expiration Date: 
June 9, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 9, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3560776 Radial magnetic bearing Back-up bearing for permanent magnet biased magnetic bearing W-shaped superconducting electromagnetic system for magnetic levitation vehicles High speed spindle motor and apparatus equipped with high speed spindle motor Patent #: 5804896 InventorsApplicationNo. 094145 filed on 06/09/1998US Classes:310/90.5, Magnetic bearing310/216Core featuresExaminersPrimary: Dougherty, Thomas M.Assistant: Nguyen, Tan T. Attorney, Agent or FirmInternational ClassH02K 007/09AbstractA magnetic actuator core is provided for a radial bearing that supports a rotor for rotation about an axis. The magnetic actuator core includes a back iron, and a plurality of poles spaced circumferentially about the axis and extending radially from the back iron. Each of the poles has a taper wherein the circumferential width of the pole tapers from larger to smaller as the pole extends from the back iron. | |
