| Patents for B61L 21 - Station blocking between signal boxes in one yard (470) |
|---|
| 11/04/1993 | DE4306470A1 User interface of computer workstation for railway signals - using second computer performing checkback on possibly dangerous routes in text form and requiring acknowledgement |
| 04/07/1993 | EP0535764A2 System for transferring date represented in a balanced code to a telegram memory module |
| 01/12/1993 | US5178349 Railroad signal system |
| 04/23/1992 | DE4032920A1 Controlling transmission of data - involves exercising control at transmitter and coding is reliably checked |
| 04/22/1992 | EP0481574A2 Method for predetermining running speed at light signals |
| 03/11/1992 | EP0473834A1 Electronic interlocking control system, set up according to the local processor control principle |
| 03/11/1992 | CN2098419U Non-centralized and semi-automatic blocking signal alarm for train railway station |
| 01/16/1992 | DE4021360A1 Route searching for railway signalling - using combination of route section data sets in signal box |
| 10/02/1991 | EP0448796A2 Control device for an interlocking system of at least one remote control panel |
| 06/25/1991 | US5026009 Method for tracking trains through multiple false track circuit occupancies |
| 01/30/1991 | EP0410218A2 Method and apparatus for tracking trains through multiple false track circuit occupancies |
| 12/27/1990 | EP0403954A2 Clear track signalling device for railways |
| 09/12/1990 | EP0386485A2 Control panel for an electronic switch tower |
| 08/22/1990 | EP0382972A2 A system comprising a processor |
| 04/18/1990 | CN1041465A Control and data processing apparatus |
| 12/20/1989 | EP0346804A1 Data-processing and control device |
| 11/15/1989 | EP0341826A2 A railway signalling system |
| 08/01/1989 | CA1258115A1 System for indicating track sections in an interlocking area as unoccupied or occupied |
| 07/06/1989 | DE3743755A1 Method for transferring block information between geographical circuit installations |
| 11/30/1988 | CN88101544A Train collisionproof predictor |
| 08/09/1988 | US4763267 System for indicating track sections in an interlocking area as occupied or unoccupied |
| 05/11/1988 | DE3735682A1 Device for controlling an interlocking cabin |
| 03/09/1988 | CN86210089U Code automatic blocking device by micro-electron time counting |
| 12/10/1987 | DE3712833A1 Safety control device |
| 12/10/1987 | DE3619024A1 Device for controlling and monitoring interlocking cabins |
| 10/15/1987 | DE3612536A1 Arrangement for displaying the actuation of two optical fibre switches |
| 04/16/1987 | DE3535785A1 Method for realising the route search in a signal box and device for carrying out this method |
| 04/16/1987 | DE3535756A1 Device for forming the route code in a signal box |
| 04/08/1987 | CN86200397U Concentrated monitor for rail signals track circuit |
| 02/03/1987 | US4641243 Computer-controlled interlocking system for a railway installation |
| 01/07/1987 | EP0207488A2 Control device for a signal box |
| 10/28/1986 | US4619425 Pulse code system for railroad track circuits |
| 08/20/1986 | CN85203474U Handle locking device for electric lock interlock controlling table |
| 11/05/1985 | US4550889 Traffic control system for single track railroad |
| 10/09/1985 | EP0157099A2 Circuit arrangement for monitoring the presence of railway vehicles in predetermined section blocks |
| 09/10/1985 | CA1193348A1 Automatic departure test unit for cab signal equipment |
| 06/18/1985 | CA1189179A1 Automatic cab signal test set |
| 06/18/1985 | CA1189178A1 Pulse code system for railroad track circuits |
| 02/13/1985 | EP0132548A1 Device for operating a computer-controlled signal box |
| 10/03/1984 | EP0120339A1 Device for reliable process control |
| 07/24/1984 | CA1171512A1 Vehicle train routing apparatus and method |
| 07/17/1984 | CA1171176A1 Fail-safe decoder for digital track circuits |
| 07/04/1984 | EP0112444A2 Device for track-free signalling, train location and velocity measurement |
| 05/16/1984 | EP0108363A2 Train service administration and control system |
| 05/16/1984 | EP0108311A2 Central control units setting device for a route interlocking system |
| 04/11/1984 | EP0105182A2 Decentralized interlocking device of routes in a route interlocking station |
| 07/12/1983 | CA1149918A1 Frequency modulated railroad track circuit |
| 04/26/1983 | US4381094 Apparatus for determining the signal term to be transmitted to a railroad traction vehicle |
| 01/04/1983 | CA1138969A1 Sequential checking of railway control signals |
| 11/30/1982 | US4361300 Vehicle train routing apparatus and method |
| 10/05/1982 | CA1133102A1 Vital power varistor circuit for railroad signaling systems |
| 06/08/1982 | CA1125427A1 Railroad interlocking signal system with insulated joint failure and overrun protection |
| 04/20/1982 | CA1122314A1 Fail-safe timing circuit |
| 04/06/1982 | US4323210 Manual block traffic control and signaling system for railroads |
| 03/23/1982 | US4320881 Fail-safe decoder for digital track circuits |
| 08/18/1981 | US4284256 Sequential checking of railway control signals |
| 07/29/1981 | EP0032581A2 Device for determining the indication of a signal to be conveyed to a railway traction vehicle |
| 11/25/1980 | CA1090459A1 Route control system for railroad interlockings |
| 02/12/1980 | US4188002 Vital power varistor circuit for railroad signaling systems |
| 01/01/1980 | US4181278 Railroad interlocking signal system with insulated joint failure and overrun protection |
| 12/12/1979 | EP0005971A2 Sequential checking of railway control signals |
| 04/17/1979 | US4150417 Fail-safe timing circuit |
| 09/26/1978 | CA1039395A1 Signal system for high speed trains |
| 01/03/1978 | US4066228 Route control system for railroad interlockings |
| 03/29/1977 | US4014503 Method and apparatus for control of central spacing of track-operated vehicles |
| 11/16/1976 | US3991958 Magnetically actuated registration circuitry for a vehicle control system |
| 09/07/1976 | US3979092 Sequential occupancy release control method and apparatus for train vehicles |
| 08/24/1976 | US3976272 Control system for railroads |
| 07/06/1976 | US3967801 Signal system for high speed trains |
| 06/15/1976 | US3963201 Sequential occupancy release control method and apparatus for train vehicles |