| Patents for B61L 3 - Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal (2,273) |
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| 08/28/1979 | US4165850 Safety device for a transport system |
| 08/21/1979 | CA1060954A1 Transponder system for the transfer of signalling information for rail-bounded vehicles |
| 07/10/1979 | CA1058303A1 Method and apparatus for driving a vehicle in a closed circuit |
| 06/05/1979 | CA1056023A1 Fail safe digital code rate generator |
| 05/29/1979 | CA1055593A1 Station stop and speed regulation system for trains |
| 05/29/1979 | CA1055592A1 Simplified cab signal receiver circuit |
| 05/01/1979 | CA1053787A1 Circuit arrangement for controlling the propulsion, braking and station stopping functions for a rapid transit train |
| 05/01/1979 | CA1053786A1 Control system for vehicles |
| 04/24/1979 | CA1053357A1 Failsafe cab signal process for high voltage pulsating current fed track circuit data transmission and equipment therefor |
| 03/13/1979 | CA1050649A1 Control method for rail vehicles |
| 01/16/1979 | CA1046619A1 Signal threshold responsive apparatus |
| 01/09/1979 | US4133506 Derail signal switch |
| 01/09/1979 | US4133505 Railway safety system using intensity of current |
| 01/02/1979 | US4132379 Method for improving the stopping accuracy at railway stations of track-bound vehicles |
| 12/26/1978 | CA1045238A1 Dual frequency track circuit |
| 12/26/1978 | CA1045237A1 Train control signalling system |
| 11/28/1978 | CA1043437A1 Frequency responsive speed control apparatus |
| 11/14/1978 | CA1042506A1 Fail-safe transformer circuit |
| 10/31/1978 | CA1041631A1 Arrangement for measuring the distance between two successive objects |
| 09/05/1978 | CA1038073A1 Vehicle velocity limit control method and apparatus |
| 08/22/1978 | US4108404 Arrangement for protecting data communication in a continuous automatic train control system |
| 08/22/1978 | CA1037124A1 Information transmission system using a high frequency signal and its d.c. component and a harmonic |
| 08/15/1978 | US4107253 Safety and test device in a railway signalling system |
| 06/20/1978 | US4095764 Spot control type automatic train stop system utilizing ground control units common to more than one block signal |
| 06/06/1978 | US4093162 Train operation control apparatus |
| 05/23/1978 | US4090452 Power rail, control signal rail and guide beam arrangement for a transporting system |
| 05/09/1978 | US4088971 Flat high frequency cable useable with vehicle transmitter-receiver |
| 05/02/1978 | US4087066 Train protection and control system |
| 04/25/1978 | US4085913 Device for preventing collision of trains |
| 03/28/1978 | US4081160 Fail-safe cab signal process for transmitting information by high-voltage pulsed track circuits, and apparatus for carrying the process into effect |
| 01/03/1978 | US4066877 Procedure and system for driving a vehicle |
| 12/20/1977 | US4063699 Fail-safe block control system for driverless vehicles |
| 10/11/1977 | US4053879 Fail safe digital code rate generator |
| 10/11/1977 | US4053128 Jointless high frequency track circuit systems for railroads |
| 09/06/1977 | US4046342 Wayside signaling system for railroad cab signals and speed control |
| 08/23/1977 | US4044272 Fail-safe electronic time delay circuit |
| 08/09/1977 | US4041448 Electronic railroad track marker system |
| 08/02/1977 | US4040053 Transponder system for the transfer of signalling information for rail-bounded vehicles |
| 08/02/1977 | US4039916 Device for precluding a collision between a mobile object and a fixed or mobile obstacle |
| 07/12/1977 | US4034942 Method of leading a rail vehicle by means of a control center from an automatically controlled area to an area of individual control |
| 06/14/1977 | US4029274 Train control signalling system |
| 05/31/1977 | US4026506 Transmitting loop arrangement for railroad cab signal and speed control system |
| 05/17/1977 | US4023754 Fail-safe separation of driverless vehicles |
| 05/03/1977 | US4021723 Fail-safe transformer circuit |
| 04/12/1977 | US4017044 Train vehicle control apparatus |
| 04/05/1977 | US4016517 Signal bandpass filter apparatus |
| 04/05/1977 | US4015807 Logic passing device for automatic railway piloting |
| 03/29/1977 | US4015082 Multi-channel signal decoder |
| 03/15/1977 | US4012019 Car signaling system |
| 02/15/1977 | US4007897 Control system for monitoring vehicle passage at predetermined locations |
| 02/01/1977 | US4005838 Station stop and speed regulation system for trains |
| 02/01/1977 | US4005837 Circuit arrangement for controlling the propulsion, braking and station stopping function for a rapid transit train |
| 01/11/1977 | US4002314 Train vehicle speed control signal providing apparatus |
| 11/16/1976 | US3992698 Fail-safe speed command signal decoder |
| 11/16/1976 | US3991958 Magnetically actuated registration circuitry for a vehicle control system |
| 11/09/1976 | US3991403 Information transmission equipment |
| 10/05/1976 | US3984806 Location systems |
| 10/05/1976 | US3984073 Antenna apparatus for vehicle track rail signals |
| 09/21/1976 | US3982243 Device for transmission of information from an information emitter to an information seeker |
| 09/07/1976 | US3979092 Sequential occupancy release control method and apparatus for train vehicles |
| 09/07/1976 | US3979091 Communication system for guideway operated vehicles |
| 08/17/1976 | US3974992 Vehicle velocity limit control method and apparatus |
| 08/10/1976 | US3974435 Means for supplying a load object |
| 08/10/1976 | US3973746 Collision avoidance system |
| 07/20/1976 | US3970271 Dual frequency track circuit |
| 06/29/1976 | US3966148 Signal threshold responsive apparatus |
| 05/15/1976 | US3958783 Vehicle zero speed detection system |
| 04/27/1976 | US3953714 Method of and means for controlling the movement of self-propelled bodies traveling in a fixed order along a track |
| 03/30/1976 | US3946972 Simplified cab signal receiver circuit |
| 02/10/1976 | US3937432 Train control |
| 02/10/1976 | US3937427 Cab signal control circuits for railroad interlockings |
| 01/20/1976 | US3934125 Automatic vehicle operation system |
| 01/20/1976 | US3933099 Vehicle control apparatus for a closed transporting system |