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| Number | Title | Issue Date |
| 7392117 | Data logging, collection, and analysis techniques A system and method for data logging, collection, and analysis techniques. Logging, collection, and analysis of data relating to the condition of a structure, such as a railway rail. Monitoring the neutral temperature of a railway rail. ... | 06/24/2008 |
| 7263886 | Apparatus for and methods of stress testing metal components A tuning device (23) and an apparatus that incorporates the tuning device (23) for use in testing the integrity of a railway line (30) to obtain an improved test signal, the tuning device (23) including an elongate member (23) adap... | 09/04/2007 |
| 7236860 | Method and system for ensuring that a train does not pass an improperly configured device A train control system includes a positioning system and consults a database to determine when the train is approaching a configurable device such as a switch or grade crossing gate. The system continuously interrogates the device to determine its status as the trai... | 06/26/2007 |
| 7231273 | Substrate processing apparatus and method including obstacle detection A camera is fixed to a camera fixture extending forward and upward from a rear end of an arm mechanism. The camera picks up the direction of extension of the arm mechanism when the substrate is carried in and out. If a normal still image in a hot plate unit previous... | 06/12/2007 |
| 7226021 | System and method for detecting rail break or vehicle A rail break or vehicle detection system includes a plurality of voltage sources, each coupled to one of the plurality of zones. A plurality of resistors are provided, each coupled in series with one of the plurality of voltage sources. A plurality of current sensor... | 06/05/2007 |
| 7202797 | System and a method for detecting, locating and discerning an approach towards a linear installation A system and a method for detecting, locating and identifying incidents of approaching a linear installation (e.g.—buried pipe line, railway, fence etc.), that includes plurality of sensing units positions in an array along the length of the linear installation, a... | 04/10/2007 |
| 6961445 | Image processing warning system A method and apparatus for capturing and processing images from a portion of a system in order to detect a warning condition for providing warnings to users or operators of the system. One or more image capture devices capable of capturing an image, for example, a c... | 11/01/2005 |
| 6951132 | Rail and train monitoring system and method A system and method for determining at least one parameter related to a train traversing on a railway track is provided. The system comprises a sensor coupled to a detection location and configured for sensing acoustic signals at the detection location on the railwa... | 10/04/2005 |
| 6895362 | Active broken rail detection system and method A system to monitor the integrity of a railway track is provided. The system comprises a mechanical signal source and a correlation detector. The mechanical signal source coupled to the railway track and is configured for generating a mechanical signal pulse train o... | 05/17/2005 |
| 6834836 | Binary data transmission capability incorporated into pulse coded railroad signaling system A railroad signaling system operative for controlling railroad traffic to control signals, said system comprising: a control point; a control block having a plurality of common nodes and a node which serves as a control point; and a common medium which is capable of... | 12/28/2004 |
| 6655639 | Broken rail detector for communications-based train control and positive train control applications A method and apparatus detect completely broken rails in an unoccupied section of railroad track including two rails without insulated joints by subdividing the track section into current loops and applying commercial AC power near the physical center of ... | 12/02/2003 |
| 6565046 | Method of detecting obstacles on railroad lines A method and system of detecting obstacles on railroad lines. Sensors for observing the railroad line are arranged along the railroad line, and automatic evaluation takes place. One advantage of the invention is that the railroad lines are divided into gi... | 05/20/2003 |
| 6540180 | Method and apparatus for detecting misaligned tracks A warning system for identifying a track misalignment. An RF generator and horn antenna direct energy onto a track rail that acts as a traveling wave antenna. An antenna near a potential discontinuity radiates RF energy, the amount of energy radiated bein... | 04/01/2003 |
| 6373403 | Apparatus and method for improving the safety of railroad systems An apparatus and method for improving the safety of railroad systems of the present invention includes a system for navigating a railroad vehicle over railroad tracks. An attitude sensor is used to dynamically sense the attitude of the railroad vehicle as... | 04/16/2002 |
| 6216985 | Railway hazard acoustic sensing, locating, and alarm system A highly reliable early warning system is disclosed. The warning system provides immediate detection of railway activity and early warning of dangerous railway conditions to train crews and to Rail Traffic Control offices. The warning system has acoustic ... | 04/17/2001 |
| 5529267 | Railway structure hazard predictor A hazard predictor that processes both rail and superstructure measurements to predict some potentially hazardous conditions on a railway structure. Measurement is collected in real time with the aid of fiber optic sensor based linear array mesh, and proc... | 06/25/1996 |
| 5265538 | Track warning detonator A warning detonator for use on railway tracks or the like is disclosed. The detonator comprises a tube or cylinder (18) having disposed therein at spaced apart locations a length of elastomer (20) and a first explosive component (24, 25). A second explosi... | 11/30/1993 |
| 4932618 | Sonic track condition determination system Sonic transponders mounted on a train and the track upon which it rolls transmit and receive sonic vibrations along the track. Information currently being transmitted electrically may also be thus transmitted sonically. Since the track interferes with the... | 06/12/1990 |
| 4771698 | Sensing system for a tracked vehicle transportation system A sensing system for use on a tracked vehicle transporation system forms a sensitive floor beneath the lip of a platform. The floor is made up of a plurality of metal plates mounted on spring supports so that they can be slightly depressed if an abnormal ... | 09/20/1988 |
| 4008870 | Railroad track alarm A railroad track alarm. The alarm comprises a switch box mountable between the rails of a railroad track. There are openings in the ends of the switch box and first and second switches located in the switch box. Two rods extend outwardly from inside the s... | 02/22/1977 |
