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| Number | Title | Issue Date |
| 7432791 | Magnet arrangement for carrying, guiding and/or braking systems in magnetic levitation vehicles A magnet arrangement (1) for magnetic levitation vehicles is described that is comprised of an electromagnet having a plurality of magnet poles, said magnet poles having cores connected via pole backs (4) and coils (5) coiled onto them, said coi... | 10/07/2008 |
| 7287638 | Apparatus, method of manufacturing and method of using a linear actuator A linear actuator, method manufacturing and method of using the linear actuator are provided. The invention includes a linear actuator having a plurality of annular magnets surrounded by a bobbin assembly having a coil system. The plurality of annular magnets can be... | 10/30/2007 |
| 7271509 | Polygonal structure of a linear motor with ring winding A linear motor includes a primary having lamination stacks, which are arranged to realize a polygonal configuration of the primary, and winding coils having windings wrapped about the lamination stacks in parallel relationship to an outer periphery of the primary. E... | 09/18/2007 |
| 7176779 | Inductor arrangement An inductor arrangement for a frequency converter or corresponding electrical apparatus, the inductor arrangement comprising an input inductor coupled to the input side of the electrical apparatus and an output inductor coupled to the output side of the apparatus, t... | 02/13/2007 |
| 6919660 | Linear brushless DC motor with ironcore composite armature assembly A stack assembly is disclosed of the type used in linear brushless DC motors, the stack assembly having a base portion, a plurality of teeth extending from the base portion and about which the windings can be positioned, and in which the plurality of teeth are space... | 07/19/2005 |
| 6753666 | Apparatus for operating a magnet vehicle An apparatus for operating a magnet vehicle, especially a magnetically levitated vehicle. The apparatus includes a long stator linear motor with at least one long stator winding laid along a track and at least one exciter arrangement cooperating with this winding an... | 06/22/2004 |
| 6286434 | Propulsion system for a magnetic levitation vehicle A propulsion system for a magnetically levitated vehicle is described. The propulsion system includes a drive and/or suspension magnet arrangement mounted in the vehicle, its drive magnets and/or suspension magnets being arranged with their magnetic axes ... | 09/11/2001 |
| 5684344 | Drive unit A drive unit including a curved track rail having a first radius of curvature, a curved slide member which moves along the track rail and has a second radius of curvature substantially equal to the first radius of curvature, and a driving device such as a... | 11/04/1997 |
| 5676337 | Railway car retarder system A railway car retarder mechanism that employs linear electromagnetic induction to precisely accelerate or decelerate a railcar. The retarder mechanism includes a plurality of linear induction stators having a spaced plurality of primary inductors, a contr... | 10/14/1997 |
| 5628253 | Ground-propulsion special-purpose electromagnetic circuit for magnetically levitated railway, and method of laying said circuit In a ground-propulsion special-purpose electromagnetic circuit for a magnetically levitated railway in which a vehicle is propelled by acting upon superconducting magnets mounted on the vehicle, there are provided beam panels placed on both side walls of ... | 05/13/1997 |
| 5621259 | Linear motor A linear motor comprising, on the one hand, a stator rail (1) and two conducting tracks (C1, C2) connected to the positive and negative poles of a DC current source and, on the other hand, moving gear equipped with at least two coils (B1, B2) powered by m... | 04/15/1997 |
| 5615618 | Orbital and modular motors using permanent magnets and interleaved iron or steel magnetically permeable members A rotating device such as an orbital motor has a stator which includes a pair of opposed, generally annular magnetic units each comprising a plurality of groups of permanent magnets such as ceramic or ferrous magnets arranged in a side-by-side relationshi... | 04/01/1997 |
| 5605100 | Propulsion system for a magnetically movable vehicle A propulsion system for a magnetically movable vehicle includes at least one means for producing a horizontal magnetic field mounted to the vehicle; a conductor adjacent to, but not in physical contact with, the means for producing a horizontal magnetic f... | 02/25/1997 |
| 5586505 | Levitation system using permanent magnets for use with trains and the like type of right-of-way vehicles The invention relates to a magnetic unit having a plurality of groups of permanent magnets such as ceramic or ferrous magnets arranged in a side-by-side relationship, each plurality being separated from an adjacent plurality by a magnetically permeable me... | 12/24/1996 |
| 5584367 | Permanent magnet type automotive vehicle suspension The invention relates to a magnetic unit used as a shock absorber or load leveler for a vehicle and having a plurality of groups of permanent magnets such as ceramic or ferrous magnets arranged in a side-by-side relationship, each plurality being separate... | 12/17/1996 |
| 5552649 | Segmented rail linear induction motor A segmented rail linear induction motor has a segmented rail consisting of a plurality of nonferrous electrically conductive segments aligned along a guideway. The motor further includes a carriage including at least one pair of opposed coils fastened to ... | 09/03/1996 |
| 5476047 | Linear motor type handling device including mobile elements travelling over a network The invention relates to a handling device including a track (1) constituting a travel path for one or more mobile elements, the said mobile elements being driven by a linear electric motor composed of an inductor (42, 43) carried by the mobile element an... | 12/19/1995 |
| 5452663 | Levitation and propulsion system using permanent magnets and interleaved iron or steel The invention relates to a magnetic unit having a plurality of groups of permanent magnets such as ceramic or ferrous magnets arranged in a side-by-side relationship, each plurality being separated from an adjacent plurality by a magnetically permeable me... | 09/26/1995 |
| 5431109 | Levitation and linear propulsion system using ceramic permanent magnets and interleaved malleable steel The invention relates to a magnetic unit having a plurality of groups of ceramic magnets arranged in a side-by-side relationship, each plurality being separated from an adjacent plurality by a malleable steel member to focus the lines of magnetic flux. Pr... | 07/11/1995 |
| 5394807 | Power drive system A power drive system for use in a linear motor propulsion system for powering and propelling a train of a predetermined length along a track. The power drive system includes a plurality of drive coils spaced along the track electrically connected together... | 03/07/1995 |
| 5333553 | Carriers for linear motor vehicle-borne field magnets which straddle ground-side coils The carrier for linear motor vehicle-borne field magnets includes a aluminium profiled material of a gate shape in section, which is provided with recesses of permanent magnet size in both its legs. Permanent magnets attached to iron cores are inserted in... | 08/02/1994 |
| 5277125 | Material handling car and track assembly having opposed magnet linear motor drive and opposed permanent magnet brake assembly Material handling car and track assembly, the assembly comprising a car having wheels mounted thereon, and a track having two parallel rails, the wheels being adapted to roll on the rails to facilitate movement of the car along the track, a metal slider e... | 01/11/1994 |
| 5243919 | Magnetic levitation actuator A magnetic levitation actuator includes a pair of U-shaped first permanent magnets provided on opposite sides of an object to be driven with a pair of outwardly projecting first legs defining the U-shape. A pair of guide rails are spaced apart from the ob... | 09/14/1993 |
| 5178072 | Ground coil for magnetically levitated railway and method of producing the same In order to produce a ground coil for a magnetically levitated railway, coils each composed of a conductor coiled in a plurality of turns are arranged in a metal mold, and a synthetic resin forming reactive liquid is injected and cured in the metal mold b... | 01/12/1993 |
| 5174416 | Linear induction motor for elevator A linear induction motor for an elevator which includes a secondary, stationary element having a body formed with a plurality of iron-core mounting holes arranged longitudinally of the body at a certain interval, and iron cores disposed in the holes. The ... | 12/29/1992 |
| 5127337 | Reaction rail A reaction rail assembly, for forming a secondary of linear induction motor, includes an elongate conductive member of uniform cross-section, and core formed from a plurality of elongate bars. The bars extend parallel to the conductive member, and adjacen... | 07/07/1992 |
| 5123357 | Conveyor driven by linear motor with rolling surface of rail acting as secondary for the motor The present invention is based on the critically important feature of providing a left-right parallel arranged linear motor-based conveying system in which the upper surfaces of the guide rails do double duty as providing the rolling surfaces for the whee... | 06/23/1992 |
| 5105110 | Linear induction motor secondary A linear induction motor (LIM) secondary is provided. The LIM secondary includes a thermally and electrocally conductive non-ferromagnetic top cap having one side defining a substantially smooth, continuous planar surface to be spaced from a LIM primary. ... | 04/14/1992 |
| 4931677 | Electro-magnetic linear drive An electromagnetic linear drive including a stator which constitutes a path of movement for a vehicle. The linear drive is equipped with current conductors, and is divided into a plurality of stator elements of equal length. A movable portion which consti... | 06/05/1990 |
| 4913059 | Levitation, propulsion and guidance mechanism for inductive repulsion-type magnetically levitated railway A levitation, propulsion and guidance mechanism for an inductive repulsion-type magnetically levitated railway in which a vehicle runs along a track bed has superconducting coils fixedly arranged vertically on both sides of the truck of the vehicle at pre... | 04/03/1990 |
| 4794866 | Linear motor driven railway car An electrical linear motor stator is fixedly disposed along a roadway. A car supported on at least two trucks is guided for movement along the roadway. The trucks are pivotally mounted to the car for rotation about a vertical axis. Permanent magnets for i... | 01/03/1989 |
| 4793263 | Integrated linear synchronous unipolar motor with controlled permanent magnet bias Disclosed is a single, integrated linear synchronous unipolar motor having high-energy permanent magnets operable along a substantially linear demagnetization curve and a polyphase coil. Collectively, the permanent magnets and polyphase coil provide for p... | 12/27/1988 |
| 4779538 | Levitation-propulsion mechanism for inductive repulsion type magnetically levitated railway A levitation-propulsion mechanism for an inductive repulsion type magnetically levitated railway having a vehicle with a truck and a track with a U-shaped cross-section with spaced opposed walls between which the truck runs, has a plurality of vertically ... | 10/25/1988 |
| 4636666 | Heteropolar magnet An excitation arrangement for a long stator drive, particularly a synchronous long stator drive for rapid transit systems having combined generation of propelling and carrying forces comprises at least one heteropolar magnet which has a plurality of chann... | 01/13/1987 |
| 4636667 | Excitation arrangement for a long stator drive An excitation arrangement for a long stator drive for rapid transit systems has combined generation of propulsive and portative forces. The arrangement comprises at least one heteropolar magnet which has a plurality of channels extending at right angles r... | 01/13/1987 |
| 4303870 | Power supply system for linear motor A power supply system for a linear motor comprising a plurality of driving coils disposed along the track for a running body for generating a shifting magnetic field to drive the running body, power converter means for feeding the plurality of driving coi... | 12/01/1981 |
| 4303017 | Long stator linear motor without iron In winding the stator of a long stator linear motor without iron, the conductors of the traveling wave winding in the stator are designed as round jacketed lines which are fixed to a non-magnetic winding support by cross-bars and retained in place by hard... | 12/01/1981 |
| 4259908 | Electromagnetic suspension vehicle An electromagnetic suspension vehicle has an electromagnet system for suspending and guiding the vehicle along a track, the electromagnet being elastically suspended so as to be able to move generally parallel to itself transversely of the direction of tr... | 04/07/1981 |
| 4233906 | Linear induction motor with improved rail assembly A linear induction motor, particularly for a vehicle traveling along an extended track, has an armature or reaction rail mounted on the track and a stator carried by the vehicle and juxtaposed with the rail. The rail is of a highly conductive material and... | 11/18/1980 |
| 4172229 | High-power and high-speed prismatic linear motor This prismatic linear electric motor comprises an inductor constituted by an elongated prismatic core surrounded by coils themselves separated by magnetic strips ensuring the conduction of the magnetic flux to a movable armature of U-shaped cross-section,... | 10/23/1979 |
