Inductive Patents (Class 246/8)
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Patent number: 8347789Abstract: A transport system, including a rail system and carriages movably disposed thereon, the rails being encompassed by a primary conductor system to which at least one secondary coil, included by the carriage, is inductively coupled for the contactless transfer of electrical energy and/or information.Type: GrantFiled: January 13, 2007Date of Patent: January 8, 2013Assignee: Sew-Eurodrive GmbH & Co. KGInventors: Konstantin Wolf, Josef Schmidt, Günter Becker, Leobald Podbielski
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Patent number: 6089512Abstract: A track-guided transport system with power and data transmission and used for conveying goods. The transport system is provided with a transport element having drive and track-guide elements; storage, input and output units for goods; and a data processing and transmission unit. The transport element is provided with a transmission head as a secondary element for transferring power from a primary circuit laid along the track, the transmission head is mounted on the vehicle comprising a ferrite core and a secondary winding surrounding the core and magnetically is coupled to the primary circuit. An adjustable and controllable drive unit may be provided for forward motion; and a device may be provided for the forward motion for low-friction compensation of gravity and to ensure low-friction sliding along a track, as well as track-guide elements.Type: GrantFiled: September 23, 1997Date of Patent: July 18, 2000Assignees: Daimler-Benz Aktiengesellschaft, Cegelec AEG Anlagen und Automatisierungstechnik GmbHInventors: Ulrich Ansorge, Horst Wunderlich, Michael Aldinger, Anton Seelig, Bernhard Huder
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Patent number: 5924653Abstract: A traffic control system for mobile units has a plurality of stationary, passive units having electronic store capacity and transmit and receive facilities. The store of the passive units contains an information code which is unique to the unit and is related to the position by a mobile unit, the stationary units supply their information code, enabling the mobile unit to calculate its position. The store of the stationary units, in addition to the information codes of the units, contains stored traffic messages which are supplied together with the information code upon interrogation from the mobile unit. The movement from the mobile unit can be adjusted according to the traffic information received.Type: GrantFiled: June 6, 1997Date of Patent: July 20, 1999Inventors: Heine Ewi Pedersen, John Harder, Flemming Lohmann-Jensen
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Patent number: 5551653Abstract: If a vehicle fitted with a head station is to be mechanically and electrically coupled to other vehicles, attention must be paid to the alignment of the vehicles and the coupling condition of the high frequency plugs interconnecting the vehicles. In order to reduce the labor and time required in the high frequency coupling of the vehicles, each vehicle, except for the one with the head station, is fitted with a vehicle station which is connected to the ends of the vehicles via paired high frequency lines by plug-in components. Before the high frequency signals are switched through in a vehicle, the vehicle station checks whether there is a high frequency signal and whether or not the plugs are coupled.Type: GrantFiled: August 4, 1994Date of Patent: September 3, 1996Assignee: Robert Bosch GmbHInventors: Eberhard Friebe, Matthias Moritz, Sepp Schoenbacher
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Patent number: 5496003Abstract: A system for transmitting data between the ground and moving vehicles, for example consisting of a stretch of railway line V.sub.1 having beacons between the rails. The various beacons are connected to nodes, e.g. N.sub.i, N.sub.j, N.sub.k, which are in turn linked to a nodal transmission point (CNT) and to fixed railway installations controlling, for example, a points motor. The system is useful particularly in the field of data transmission between the ground and moving railway vehicles such as locomotives, passenger coaches, freight wagons, and train units.Type: GrantFiled: December 15, 1993Date of Patent: March 5, 1996Assignee: Societe Nationale des Chemins de fer FrancaisInventor: Patrice H. Bernard
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Patent number: 5271047Abstract: The invention provides a method of acting remotely on a site, such as a damaged nuclear power station. It consists in placing lengths of waveguide end-to-end by means of at least one carriage which is remotely controlled by the line of waveguide lengths implemented in this way, the carriage being provided with handling equipment for laying purposes and with at least one robot arm for connecting the lengths of waveguide together under the control of a control station including a signal generator and a signal receiver, which line is laid to the site that is to be inspected and optionally treated.Type: GrantFiled: July 29, 1992Date of Patent: December 14, 1993Assignee: ACBInventor: Gerard Freneix
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Patent number: 4932617Abstract: A system for transmitting data and/or instructions and/or localization between a moving element and a control station. The system includes a hollow tube running parallel to the path of the moving element and constituting a waveguide, the tube having an emitting face which is pierced by a network of openings, and the moving element including a pair of microwave transmit and/or receive antennas. The network of openings on the emissive face of the hollow tube makes it possible to transmit two distinct electric field signals between the openings and the transmit and/or receive antenna. One of the signals serves to transmit data and/or instructions, and the other serves to measure the speed and the position of the moving element by detecting the presence of the second signal. Other systems relate to the application of such hollow tubes to automobile toll stations for monitoring an enclosure which is dangerous for personnel.Type: GrantFiled: December 11, 1987Date of Patent: June 12, 1990Assignee: Societe Anonyme dite: ALSTHOMInventors: Marc Heddebaut, Pierre Degauque, Denis Duhot, Pierre Mainardi
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Patent number: 4856821Abstract: Couplings for hoses and the like having externally threaded male components and internally threaded female components provided with tube inserts projecting from one component into slide fit engagement with the other component for aligning the threaded portions of the components as they are brought together for threaded engagement. To further facilitate alignment of the components, the internally threaded female component has an unthreaded smooth extension for sliding over the externally threaded male component to align the thread. The tubular extension member may be a separate auxiliary tube bottomed in the female coupling unit and held in position by a resilient washer, such as is conventionally used between the coupling units. Alternately the tubular extension may be a fixed part of one of the coupling components. The extension tube and the extended smooth leading end of the internally threaded female member can be used together or separately.Type: GrantFiled: September 30, 1988Date of Patent: August 15, 1989Inventor: Arthur P. Swanson
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Patent number: 4840125Abstract: In the operation of railways with long-stator linear motors, the drive energy is to be applied to the vehicle from a distributing sub-station with optimally-low losses. This presumes that the entire line is not constantly supplied with energy, but is only supplied with energy in sub-regions. Only such sub-regions are to be supplied with propulsion energy in a time-suitable manner, dependent on the location of the vehicle. The propulsion traveling wave winding is sub-divided into successive sections that can be supplied with propulsion energy from the distributing sub-stations with the assistance of separate switches. A crossed double line is, likewise, divided into sections and is provided parallel to the sections, the portions of the crossed double line overlapping. The individual sections are connected to a stationary central station, which receives signals output by the vehicle in a section-associated manner.Type: GrantFiled: June 9, 1988Date of Patent: June 20, 1989Assignee: Siemens AktiengesellschaftInventor: Wilbrand Lueers
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Patent number: 4488238Abstract: This disclosure is concerned with an alternating signal amplitude selection stage of particular application in devices for information transmission, as in track systems along which there are in succession a number of transmission zones each employing oscillating carrier frequencies, and with a view to avoiding crosstalk problems between signals in adjacent zones. According to the invention, the selection stage comprises an operational amplifier placed in an open loop, a counter of the number of impulse peaks included in the output signal of the differential amplifier, and a circuit for controlling the switching of an inverter to connect the appropriate filter to the input of a processing device for the signal of greater amplitude to eliminate the signal of lesser amplitude.Type: GrantFiled: November 16, 1981Date of Patent: December 11, 1984Assignee: Jeumont-Schneider CorporationInventors: Jean P. Salmon, Daniel M. Laurent
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Patent number: 4449685Abstract: The purpose of the invention is to reduce the total power consumed by a coupling for inducing a high-frequency alternating current in the rails of a railroad track for the purpose of transmitting information to trains traveling along the track.According to the invention, the coupling consists of two conductive coils made of a conductive strip attached to an insulating strip, the conductive strip being arrayed, in the portions of the coupling that are parallel to the rail, in a plane parallel to the sides of the central rib of the rail and on either side of it, the insulating strip separating the central rib of the rail from the conductive strip. The two coils are connected in such a way that the same current flows in the same direction through both.Type: GrantFiled: June 26, 1981Date of Patent: May 22, 1984Assignee: Jeumont Schneider CorporationInventors: Jean P. Salmon, Claude P. Theze
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Patent number: 3979091Abstract: A communication system for track or guideway operated vehicles is disclosed. The system is adapted for two-way transmission between a vehicle and a wayside station and is provided with a transmission line of special configuration along the wayside. The transmission line comprises three conductors each having a wave configuration with the waves disposed in three-phase relationship and a return conductor which is also of wave configuration. The vehicle transmitter section is provided with an inductive loop which is coupled with the transmission line and is energized with a continuous wave signal. This produces signals on the three phase conductors which have an envelope frequency proportional to vehicle speed and a phase relationship corresponding to the relative position of the wave configurations of the phase conductors. Thus, vehicle speed may be derived by measuring frequency and vehicle position may be derived by counting cycles or pulses from a given starting point.Type: GrantFiled: June 6, 1975Date of Patent: September 7, 1976Assignee: Otis Elevator CompanyInventors: Forrest W. Gagnon, Arthur H. Marsh
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Patent number: RE28867Abstract: A communication system between mobile and wayside stations wherein the mobile stations are traveling on a track which is divided into sections by means of an open-type transmission line paralleling the track. A frequency selection and conversion device for each section of transmission line or track is connected to the transmission line to define the length of each section. A series of lower frequency carriers transmitted on the line are allotted respectively to each specific section of transmission line. These low-frequency carriers travel with a low loss along the transmission line and they are selected and converted by their respective frequency selection and converter device to a common high-frequency carrier signal for leaky transmission to a mobile station on the corresponding track section.Type: GrantFiled: February 5, 1973Date of Patent: June 15, 1976Assignee: Sumitomo Electric Industries, Ltd.Inventors: Takeshi Baba, Kenji Shibuya, Tetsuro Maruhama, Tsuneo Nakahara, Kenichi Yoshida