High speed transport system
Patent 5282424 Issued on February 1, 1994. Estimated Expiration Date: 
November 18, 2011. 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 18, 2011. 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 ReferencesInventorApplicationNo. 792268 filed on 11/18/1991US Classes:104/282, Propulsion means employed to suspend car104/138.1, TUBULAR WAY104/284, Including means to sense or control car position or attitude with respect to guideway105/365Tubular wayExaminersPrimary: Oberleitner, Robert J.Assistant: Rutherford, Kevin D. Attorney, Agent or FirmForeign Patent References
International ClassB61B 013/08AbstractA method and apparatus is capable of high-speed transportation of passengers and/or freight. Vehicles (22) are operated along a guideway (14) as a result of the interaction between vehicle lift, steering and propulsion apparatus, each of which includes coil assemblies that are mounted on the vehicle (22), and magnet assemblies mounted on the guideway (14). Vehicle propulsion is provided by the interaction of currents on the vehicle (22) with time-varying magnetic fields that are generated along the guideway (14). The coils and magnets interact in accordance with the magnitude of electric current passing through the coils and the strength of the magnets' fields, to give lift and directional control to the vehicle. The lift and steering magnets (92, 94, 120, 122) provide substantially uniform magnetic fields so that the interaction between the lift coils and lift magnets, and respectively between the steering coils and steering magnets is substantially independent of positioning of the corresponding coils (104, 106, 108, 124, 126, 128 and 103).Other References
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