Levitation and guide mechanism for curved track in inductive repulsion type vehicle magnetic levitation and guide system
Patent 4299173 Issued on November 10, 1981. Estimated Expiration Date: 
November 14, 1999. 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.
November 14, 1999. 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 3828686 3913493 Systems for magnetically supporting a vehicle Patent #: 4055123 InventorsAssigneeApplicationNo. 06/094317 filed on 11/14/1979US Classes:104/284, Including means to sense or control car position or attitude with respect to guideway104/281, MAGNETICALLY SUSPENDED CAR104/293, Including means to control gap310/12, Linear318/135, LINEAR-MOVEMENT MOTORS505/904Guidance means (i.e., in addition to the track)ExaminersPrimary: Reese, Randolph A.Attorney, Agent or FirmInternational ClassesB60L 13/04 (20060101)B61B 13/08 (20060101) Foreign Application Priority Data1978-12-28 JPAbstractAn improvement in an inductive repulsion type vehicle magnetic levitation and guide system for a curved track in which the vehicle is levitated by an electromagnetic force generated between levitation conductors having the same time constant and laid in two parallel rows on the ground at specific intervals in the direction of travel of the vehicle and levitation superconductive magnets on the vehicle capable of being electromagnetically coupled with the levitation conductors, the magnets being opposed to the levitation conductors at a specific distance from the levitation conductors. The vehicle is guided by an electromagnetic force generated between guide conductors having the same time constant successively positioned at specific intervals in the direction of travel of the vehicle and guide superconductive magnets mounted on the vehicle opposed to the guide conductors at a specific distance from the guide conductors. The electromagnetic force generated between the levitation superconductive magnets and the levitation conductors or between the guide superconductive magnet and the guide conductor on one side of a curved track is made larger than the similar force generated on the other side of the curved tracks, and the differential force counteracts the centrifugal force acting on the vehicle running over the curved track, thus stabilizing the vehicle running at high speed along the curved track.Field of SearchMAGNETICALLY SUSPENDED CARPropulsion means employed to suspend car By permanent magnets only Including means to sense or control car position or attitude with respect to guideway With cooling means CAR-CARRIED PROPULSION SYSTEM Linear motor Propulsion by active guideway; e.g., linear synchronous motor, etc. | |
