| Patents for B61L 1 - Devices along the route controlled by interaction with the vehicle or vehicle train (1,907) |
|---|
| 09/26/1991 | DE4021920C1 Transmitting information for railway signalling - using antenna in-front of first axle of locomotive and rails forming sec. coil |
| 09/10/1991 | CA1288853C Arrangement for monitoring a track section |
| 09/04/1991 | CN2084027U Electromagnetic type track sensor with projective pole |
| 09/03/1991 | US5045787 Apparatus and method for measuring insulated track joint resistances |
| 08/28/1991 | CN2083554U Three section locked rail insulator |
| 08/08/1991 | WO1991011356A1 Track circuit system |
| 07/30/1991 | US5036478 Computing the length of a railway vehicle or a train of such vehicles |
| 07/23/1991 | US5034681 Voltage detection |
| 07/23/1991 | CA1286763C Train communication system |
| 07/13/1991 | WO1991010584A1 Arrangement for identifying an object by means of structure-borne noise, and use of said arrangement |
| 07/13/1991 | CA2049023A1 Arrangement for detecting an object by means of sound conducted through a solid body and method of using such arrangement |
| 06/12/1991 | CN2078720U Narrow pulse track circuit |
| 06/06/1991 | DE4038267A1 Pointwise data and power transmitter - transmits data and power between rail vehicle, fixed route device and traffic lights |
| 05/30/1991 | WO1991007766A1 Impedance bonds |
| 05/30/1991 | WO1991007302A1 Improvements in railway signalling systems |
| 05/15/1991 | CN1051330A Automatic recognition system for carriages of a train |
| 05/01/1991 | CN1012490B Receiver of electronic door |
| 04/17/1991 | CN2075168U Spraying type fuse special for railway track |
| 04/17/1991 | CN2075167U Intelligent speed tester for vehicle train |
| 03/19/1991 | US5001587 Protection circuit for railroad signaling high voltage surge protection circuit |
| 03/05/1991 | CA1281116C Solid state railroad lights/gate controller |
| 01/30/1991 | EP0410117A2 Method for the improvement of the security of the signal transmission in track circuits as well as circuit arrangement for the realisation of the method |
| 01/22/1991 | US4986498 Device for determining the condition of railway switches or railway crossings |
| 01/22/1991 | CA1279384C Vital processing system adapted for the continuous verification of vital outputs from a railway signaling and control system |
| 01/02/1991 | CA1278559C Railroad track mounting arrangement |
| 12/20/1990 | DE3919954A1 Transferring data to and reading from ferromagnetic train wheels - using coils spaced inside rail to imprint magnetic data on stress=free rim region of wheel |
| 12/19/1990 | CN1010848B Microcomputer axle-counting close device |
| 11/14/1990 | EP0396798A1 Method and arrangement for detecting railway vehicles |
| 08/22/1990 | EP0382973A2 Voltage detection |
| 08/14/1990 | CA1272756A1 Vital inverter driver |
| 08/13/1990 | CA2006802A1 Voltage detection |
| 08/08/1990 | CN1009068B Ac railway track circuit with lightening protection properties |
| 08/01/1990 | CN2059892U Ground wire with insulation ocver |
| 07/11/1990 | CN1008716B Feeding system in dc electron railway |
| 06/28/1990 | DE3844663A1 System for monitoring and/or controlling rail-borne traffic |
| 06/27/1990 | EP0374697A1 Device for attaching switching and measuring devices |
| 06/27/1990 | EP0374430A2 Method and arrangement for the suppression of interference by magnetic brakes on a magnetic axle counter |
| 06/27/1990 | CN2058648U Receiving coil of signal inductor for totally plastic enclosed locomotive |
| 06/12/1990 | US4932618 Sonic track condition determination system |
| 06/12/1990 | US4932615 Railroad track simulator for assessing track signal susceptibility to electric power line interference |
| 06/12/1990 | US4932614 Train communication system |
| 05/10/1990 | DE3837873A1 Circuit arrangement for producing axle counting pulses for axle counting systems for railway safety systems |
| 05/09/1990 | EP0367730A2 Device for the protection of track relays from electrical disturbances |
| 04/26/1990 | CA2000250A1 Device for the protection of track relays from electrical disturbances |
| 04/19/1990 | DE3835206A1 Track circuit arrangement |
| 04/19/1990 | DE3835205A1 Axle sensor |
| 03/21/1990 | EP0358785A1 Device for operating a redundant multiprocessor system for the control of an electronic signal mechanism in the train signal technique |
| 02/28/1990 | CN2053608U High-voltage pulse long track circuit receiver with high sensitivity |
| 02/14/1990 | CN1039562A Protective system for damage in insulation of track circuit |
| 02/01/1990 | DE3825956A1 Eddycurrent rail brake |
| 01/23/1990 | US4895324 Reusable derailment detection and signaling device |
| 01/03/1990 | CN1038431A Automatic regulation system for voice-frequency track circuit |
| 12/05/1989 | US4885689 Multilingual code receivers |
| 11/29/1989 | EP0344145A1 Device for detecting the condition of rail switches or crossings |
| 11/29/1989 | EP0343484A2 Touchless proximity switch for railway installations |
| 11/23/1989 | EP0342526A2 Rail clamp device for a casing |
| 11/23/1989 | DE3815152A1 Device for monitoring and/or controlling rail-bound traffic |
| 11/15/1989 | EP0341827A2 Computing the length of a railway vehicle or a train or a train of such vehicles |
| 11/08/1989 | EP0340660A2 Device at railways to produce presence criteria of rail-bound wheels |
| 11/07/1989 | US4878638 Combination frequency loop coupling for railway track signalling |
| 10/18/1989 | CN2046095U Digital automatic on/off device |
| 09/28/1989 | DE3808484A1 Sensor device for railway systems |
| 09/20/1989 | CN1035641A Apparators for reading information off railway vehicle |
| 08/08/1989 | US4855737 Track circuit signalling arrangement |
| 08/02/1989 | CN2042042U Automatic opening indicator for gate of special railway line |
| 07/25/1989 | CA1257905A1 Vital safety monitoring circuit |
| 07/06/1989 | DE3813427C1 Failsafe memory circuit |
| 07/04/1989 | US4844338 Rail fastener |
| 06/22/1989 | DE3742118A1 Data transmission device with secure signalling |
| 06/22/1989 | DE3742117A1 Data transmission device with secure signalling |
| 06/21/1989 | CN2039648U Controlled changeover device for electric switch in site |
| 06/01/1989 | DE3739227A1 Data processing system with computers processing the same data in several channels |
| 05/31/1989 | CN2038461U Track connector wires with equal resistances |
| 05/03/1989 | CN2036915U Electronic gate receptor |
| 04/13/1989 | DE3732159A1 Method and circuit arrangement for monitoring track sections in railway systems |
| 03/30/1989 | DE3744467C1 Fail-safe digital filter |
| 03/29/1989 | CN1031970A Electronic gate receiver |
| 03/28/1989 | US4816960 Railway signalling system |
| 02/28/1989 | CA1250651A1 Power control circuit arrangement for maintaining a power output at a substantially constant level |
| 01/25/1989 | EP0300363A2 Circuit arrangement for free track signalization |
| 01/24/1989 | US4800507 An electronic circuit capable of providing an output signal |
| 01/05/1989 | DE3720576A1 Device on an electronic double rail contact |
| 01/03/1989 | US4795921 Logic operation-oscillation circuit |
| 12/13/1988 | US4791513 Button shaped head for floppy disc |
| 12/13/1988 | CA1246730A1 Railway wheel detector |
| 12/13/1988 | CA1246728A1 Train detection system operating in accordance with the axle-counting principle |
| 11/29/1988 | US4787581 Train detection system operating in accordance with the axle-counting principle |
| 11/23/1988 | CN88102287A Feeding system in dc electron railway |
| 11/02/1988 | EP0288564A1 Device for detecting vehicle on track |
| 10/11/1988 | US4777605 Method and apparatus for identifying the components of a signal |
| 09/21/1988 | EP0282932A2 Frequency-modulated track current circuit |
| 08/30/1988 | CA1241371A1 Fail-safe output switching circuit |
| 08/18/1988 | DE3705061C1 Signalling circuit arrangement for comparing two alternating voltages |
| 08/17/1988 | CN87207584U Automatic rail reflux balancing apparatus for zero magnetic-flux electric railway |
| 07/05/1988 | US4755692 Vital safety monitoring circuit |
| 06/30/1988 | DE3643970A1 Sensor device for railway systems |
| 06/29/1988 | EP0272343A1 Device for the surveillance of the presence of rail vehicles within specified track sections |
| 06/28/1988 | US4753403 Railroad track mounting arrangement |
| 06/22/1988 | CN86108398A Ac railway track circuit with lightning protection properties |
| 04/26/1988 | US4740972 Vital processing system adapted for the continuous verification of vital outputs from a railway signaling and control system |