Electrical machines with multiple axes of rotation
Patent 4661737 Issued on April 28, 1987. Estimated Expiration Date: 
August 21, 2005. 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.
August 21, 2005. 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 2669126 3178600 3260475 3732445 3741690 3783359 Magnetic loops closure elements for electric motor Patent #: 4051401 InventorAssigneeApplicationNo. 06/767920 filed on 08/21/1985US Classes:310/166, Induction244/166, By magnetic effect310/261, Rotor structure74/5RGYROSCOPESExaminersPrimary: Salce, Patrick R.Assistant: Rebsch, D. L. Attorney, Agent or FirmInternational ClassesH02K 17/16 (20060101)H02K 57/00 (20060101) AbstractElectrical machine including a base member, a rotor and a stator. The base member has a first magnetically permeable body with a first winding arrangement. The rotor has a second magnetically permeable body and is rotatable relative to the base member around first and second axes. The stator is adjacent to the base member, surrounds the rotor and has a stator core and second and third winding arrangements. The stator core is wound with the second winding arrangement held inward near the rotor, and wound with the third winding arrangement exterior to the stator core. The second winding arrangement is energizable to rotate the rotor around the first axis, and the first and third winding arrangements are jointly energizable to rotate the rotor around the second axis. Other electrical machines are also described.Other References
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