Ground vehicle suspension and guidance and electromagnetic system thereof with multiple surface arcuate reaction rails
Patent 5085149 Issued on February 4, 1992. Estimated Expiration Date: 
April 6, 2010. 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.
April 6, 2010. 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 3470828 3768417 3780667 3842750 3850109 3903809 3904899 Superconducting magnet Unitary superconducting electromagnet Electromagnet and method of forming same Patent #: 4822772 InventorAssigneeApplicationNo. 505922 filed on 04/06/1990US Classes:104/281, MAGNETICALLY SUSPENDED CAR104/285, With cooling means104/286Construction or composition of suspension elementsExaminersPrimary: Oberleitner, Robert J.Assistant: Morano, S. Joseph Attorney, Agent or FirmForeign Patent References
International ClassB60L 013/04AbstractThe improved support and guidance system includes a super conductor mounted in a vehicle and positioned to be above and on both sides of the upper end of a rail. The super conductor is provided with a housing and an iron core or shield is positioned within the housing to shield and shunt the return flux of the magnet so that the fringe field does not extend into the vehicle. In the preferred form of the invention, the rail in transverse section has an upper central flat surface with two concave surfaces extending to either side. The super conductors are positioned above and generally parallel to the concave surfaces of the rail. The iron shield has a horizontal central portion above the flat top of the rail and side bulbous portions on either side immediately above and to the side of the super conductors. The invention has application to the magnetic support and guidance system, the vehicle with the guidance system thereon and the combination of such vehicle with the rails.Other References
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