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| Number | Title | Issue Date |
| 7963228 | Magnetic suspension system with integrable propulsion A method and system for magnetically levitating a load is disclosed. One embodiment of the invention is a system for magnetically levitating a load, the system comprising at least two lift generators, each comprising a source of magnetic flux configured to induce a ... | 06/21/2011 |
| 7942099 | Static bearing conveying apparatus having magnetically preloading and motional error correcting functions Disclosed is a static bearing conveying apparatus having magnetically preloading and motional error correcting functions. The apparatus comprises a guide having a guide surface formed on one side of the guide facing a table, magnetic preload units provided between t... | 05/17/2011 |
| 7637214 | Method for control of support gaps for a magnetic levitation vehicle and magnetic levitation vehicle with a control circuit operating with said method A method and a magnetic levitation vehicle operating with this method are described. For the control of support gaps (10a, 10b) that are formed during operation of the magnetic levitation vehicle (1) between a track (2, 3, 4... | 12/29/2009 |
| 7533616 | Guiding magnet system and magnetic levitation vehicle equipped therewith A guiding magnet system for a magnetic levitation vehicle is described. The guiding magnet system has a plurality of magnet arrangements (50, 51, 57) which each comprise a core (33) extending in the vehicle's longitudinal direction and have at least tw... | 05/19/2009 |
| 7380508 | Suspending-rail permanent magnetic levitation train system A compensation type suspending-rail permanent magnetic levitation system includes a track unit and a vehicle unit, the track unit includes a suspending arch crosstie, and balancing guide levitation rails are symmetrically disposed on two inner sides of the suspendin... | 06/03/2008 |
| 7357085 | Machine guideway employing electromagnetic suspension A machine guideway for used in machine processing includes a base (10, 40), a slide block (20, 50) slideably received in a sliding groove of the base, and an electromagnetic suspension system. The electromagnetic suspension system provides a repulsion ... | 04/15/2008 |
| 7348691 | Magnetic levitation apparatus A magnetic levitation apparatus supports a magnetic element in a magnetic field. A control system controls a variable magnetic field to maintain the magnetic element at an equilibrium location relative to an unstable axis. In some embodiments the variable magnetic f... | 03/25/2008 |
| 7243604 | Hidden-rail and dual-attraction balancing compensation type permanent magnetic levitation train and railway system A hidden-rail dual-attraction balancing compensation type permanent magnetic levitation train and railway system are provided. The hidden rails are provided inside two underground tubes, and each tube is communicated with the ground via a rail through silt. A magnet... | 07/17/2007 |
| 7204192 | Apparatus, systems and methods for levitating and moving objects Apparatus, systems and methods for levitating and moving objects such as vehicles, doors and windows are shown and described herein. The embodiments incorporate a track with lower rails having lower permanent magnets and the object with upper rails having upper perm... | 04/17/2007 |
| 7162959 | Transportation system A transportation system is provided, in which a light-weight, small-sized vehicle can be used. This transportation system comprises a rail extending between stations, vehicle capable of running on the rail and carrying a drive unit, first zone for accelerating the v... | 01/16/2007 |
| 7138734 | Linear drive unit reducing stress generated in movable part in horizontal direction In order to reduce load supported by a support mechanism for supporting a movable part so as to prevent the movable part from moving in a horizontal direction when stress is generated thereon in the horizontal direction, there is provided a drive unit including a pr... | 11/21/2006 |
| 7107163 | Magnetic levitation force control An apparatus and method for predicting attractive magnetic levitation force comprising measuring flux density for a component of an attractive magnetic levitation system and computing a predicted attractive magnetic levitation force from the flux density. ... | 09/12/2006 |
| 7058487 | Control apparatus for hybrid vehicle In a control apparatus for a hybrid vehicle which is able to travel under the driving force from at least one of an internal-combustion engine E and a drive motor connected to the internal-combustion engine, when an FI/AT/MGECU and a MOTECU execute motor damping whi... | 06/06/2006 |
| 7026732 | Path arrangement for a multi-track linear motor system and method to control same A path for a linear motor system includes routing system between a trunk of the path and two or more branches. The routing system is operative to couple the trunk with a selected branch to enable a stage to travel between the trunk and the selected branch. The routi... | 04/11/2006 |
| 6992450 | Active mass damper The invention provides an active mass damper by use of which a machining apparatus can be downsized. The active mass damper includes a support unit for supporting a weight movably and horizontally, a motor for driving the weight, and a controller for controlling the... | 01/31/2006 |
| 6952086 | Linear position sensing system and coil switching methods for closed-loop control of large linear induction motor systems A control system for a linear motor adapted to accurately supply a moving window of power to the stator coils. A plurality of individually switched stator coils run the length of a linear motor to move a rotor down the long axis of the stator. Accurate inductive-bas... | 10/04/2005 |
| 6918469 | Curvilinear eddy current braking apparatus Eddy current braking apparatus includes an array of spaced apart permanent magnets and a plurality of flux steering magnets may be disposed in gaps between the spaced apart permanent magnets. The flux steering magnets are orientated in a manner to provide a steering... | 07/19/2005 |
| 6917136 | Synchronous machine design and manufacturing Synchronous motors according to the invention operate at higher efficiency, with lower cost, reduced mass and reduced cogging. Magnet dimensions are selected that reduce cogging forces to a negligible amount even though there are fewer slots than normal. Optionally,... | 07/12/2005 |
| 6911754 | Control of electro-magnets A support actuator 20 comprises an electro-magnet 21 having an input current 22, provided through a current controller 23, and which is arranged to generate a magnetic field 24 having a variable intensity proportional to a variable... | 06/28/2005 |
| 6907828 | Model train cars A model train freight car and a method of manufacturing the same. An aluminum model freight train car body is extruded through a die. At least one accessory is attached to the freight car body. The model train freight car weight ranges from about 1.0 lbs. to about 1... | 06/21/2005 |
| 6827022 | Magnetic levitation and propulsion system A system for levitating and propelling a vehicle along a stationary guideway includes a linear synchronous motor (LSM) having a component mounted on the vehicle and a component mounted on the guideway. The LSM components interact to generate electromagnetic forces t... | 12/07/2004 |
| 6792335 | Robotic apparatuses, systems and methods A mobile device for traversing a ferromagnetic surface. The device includes a frame and at least one surface contacting device attached to the frame. The device also includes a Halbach magnet array attached to the frame, wherein the Halbach magnet array provides a m... | 09/14/2004 |
| 6601519 | Hybrid magnetically supported carriage transporter A carriage transporting apparatus is capable of transporting one or more carriages along a track, substantially free of mechanical friction or magnetic drag, by magnetically supporting the carriages in a first direction and by stabilizing the position of ... | 08/05/2003 |
| 6568332 | Guideway for a magnetically levitated railway with longitudinal stator linear drive and a parts set and method for making the same A guideway for a magnetically levitated railway is described, having a longitudinal stator linear drive comprising at least two parallel stators. The guideway includes a plurality of supports (1) arranged along a given line and adapted to form straight an... | 05/27/2003 |
| 6450103 | Monorail system A monorail system for passenger and light freight transportation provides a support structure with an essentially planar top surface and a stabilizer guide rail having a vertical web portion supporting a head portion. The head guides a vehicle along the t... | 09/17/2002 |
| 6418857 | Superconductive magnetic levitation transportation system A transportation system with high-efficiency and large-capacity utilizing potential energy. A transportation vehicle travels at a high speed by potential energy by a level difference on a magnetic levitation guide disposed in a vacuum transportation passa... | 07/16/2002 |
| 6361268 | Frictionless transport apparatus and method A frictionless transport apparatus for transporting an object from a first to a second station is disclosed. The apparatus has a frame extending between the first and second stations and a carriage mounted for movement along said frame, in a levitated con... | 03/26/2002 |
| 6357359 | Integrated high speed maglev system utilizing an active lift An integrated MAGLEV (Magnetic Levitated Vehicle) system consists of permanent or preferably superconducting vehicle-mounted magnets which interact with both active and induced track-based currents. The magnets on the vehicle which are used for propulsion... | 03/19/2002 |
| 6298975 | Lim sorting conveyor A sorting conveyor for transporting objects and unloading objects at one or more unloading stations adjacent the conveyor. The sorting conveyor includes: a conveyor track; a train of conveyor carts connected end-to-end. Each of the conveyor carts includes... | 10/09/2001 |
| 6250230 | Apparatus and method for reducing inductive coupling between levitation and drive coils within a magnetic propulsion system An apparatus and method is disclosed for reducing inductive coupling between levitation and drive coils within a magnetic levitation system. A pole array has a magnetic field. A levitation coil is positioned so that in response to motion of the magnetic f... | 06/26/2001 |
| 6206170 | Control system for a tilt tray sorter A speed control system for a sorting conveyor for transporting objects and unloading objects at one or more unloading stations adjacent the conveyor. Each of the tilting conveyor carts includes a trailer frame base, a carrying tray for holding the objects... | 03/27/2001 |
| 6119056 | Method and apparatus for generating a sensor signal A method and an apparatus for generating a sensor signal related a track-banking angle of a banked section of track traversed by a train car wherein a track-banking angle value basically is determined from measured values of the rolling angular speed and ... | 09/12/2000 |
| 6101952 | Vehicle guidance and switching via magnetic forces A system for guidance and/or switching of a vehicle or other object comprises a guideway, a guide plate that moves along the guideway, and a magnetic field source that induces a magnetic force between the guide plate and at least a portion of the guideway... | 08/15/2000 |
| 6044770 | Integrated high speed MAGLEV system An integrated MAGLEV (Magnetic Levitated Vehicle) system consists of permanent or preferably superconducting vehicle-mounted magnets which interact with both active and induced track-based currents. The magnets on the vehicle which are used for propulsion... | 04/04/2000 |
| 5868077 | Method and apparatus for use of alternating current in primary suspension magnets for electrodynamic guidance with superconducting fields An electrodynamic suspension system levitates a platform or a transportation vehicle by an array of onboard superconducting electromagnetic coils forming a primary member overlying a secondary member on the guideway in a transverse flux orientation with r... | 02/09/1999 |
| 5809897 | Electromagnetic induction ground vehicle levitation guideway The electromagnetic induction ground vehicle levitation guideway includes a beam support member, and a transverse structural slab member mounted on top of the beam support member. The structural slab member includes top and bottom structural plates mounte... | 09/22/1998 |
| 5764050 | Method for the reliable determination of the distance of the conductive reaction track from a functional surface of a magnetic levitation vehicle moving relative to the reaction track and a sensor for performing the method In a method for measuring a distance between a conducting reaction track and a functional surface moving relative to the reaction track a sensor with two signal transmitters is provided on the functional surface. An alternating field is generated in the s... | 06/09/1998 |
| 5732636 | Magnetic levitation system A magnetic levitation system with a near zero power-loss and a high ratio of lift-force to permanent-magnet-weight is disclosed. The present magnetic levitation system includes a ground-fixed object for sustaining a carrier device; a hybrid electromagneti... | 03/31/1998 |
| 5666883 | Method and apparatus for use of alternating current in primary suspension magnets for electrodynamic guidance with superconducting fields An electrodynamic suspension system levitates a platform or a transportation vehicle by an array of onboard superconducting electromagnetic coils forming a primary member overlying a secondary member on the guideway in a transverse flux orientation with r... | 09/16/1997 |
| 5657697 | Coils for magnetic levitation apparatus Disclosed is a coil of a magnetic levitation apparatus for supporting a moving body without contact by utilizing electromagnetic force produced by electromagnetic induction. Upper and lower stages of a two-stage induction coil arranged vertically with res... | 08/19/1997 |
