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8989926 Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications  
A method and system for verifying trackside conditions in safety critical railroad applications by reporting the status of trackside signals and switches to a remote train control system. The...
8985525 Electronic condition detection system and method for railcars  
A railcar has an on-board system for detecting conditions of the railcar. The on-board system includes a plurality of condition sensors positioned on the railcar. A transceiver is in communication...
8950711 Method of detecting and signalling a hot box condition  
A method of detecting and signaling a hot box condition on a rail vehicle comprising the steps of acquiring temperature data from undercarriage components of the rail vehicle through temperature...
8925872 Consist communication system having bearing temperature input  
A consist communication system is disclosed for use with a train consist. The system may have a sensor associated with a component of the consist and configured to generate a signal indicative of...
8746629 Coupling and conduit for consist communication system  
A coupling for a communication conduit is disclosed for use with a train consist. The coupling may include a nipple configured for insertion within a fluid conduit, a flange configured to engage...
8672273 Rail car sensor network  
A rail car sensor network, in accordance with an exemplary embodiment of the present invention, includes at least one rail car having a main body portion including a first and section, a second...
8622351 Train wheel bearing temperature detection  
A system (10) for sensing a condition of a rail vehicle undercarriage component (e.g., 18) includes a sensor (e.g., 12) comprising an array of infrared sensing elements (29). Each of the elements...
8157220 Hot rail wheel bearing detection system and method  
Hot rail car bearings or wheels are identified by sensing an infrared radiation from the hot surface and determining whether features of the sensed signals are indicative of hot rail car surfaces....
8006942 Hot rail wheel bearing detection  
A system for detecting a moving hot bearing or wheel of a rail car is provided. The system includes a first comparator to receive input signals representative of radiation emitted by the moving...
7946537 Hot rail wheel bearing detection system and method  
A system for detecting a moving hot bearing or wheel is provided. The system includes a summer for combining an input signal representative of radiation emitted by the moving hot rail car bearing...
7845596 Hot rail wheel bearing detection system and method  
A system for detecting a hot surface is provided. The system includes a sensor for sensing an infrared radiation radiating from the hot surface and a high pass filter to eliminate low frequency...
7769564 Method and apparatus for monitoring bearings  
A system to facilitate reducing false train stops includes an infrared sensor that is coupled to a processing unit. The processing unit is programmed to receive inputs from the sensor, generate a...
7752015 Method and apparatus for monitoring bearings  
A system to facilitate reducing false train stops includes an infrared bearing scanner that is coupled to a processing unit. The processing unit is programmed to receive inputs from the infrared...
7705743 Self-assembling wireless network, vehicle communications system, railroad wheel and bearing monitoring system and methods therefor  
A low power self-organizing network is made up of a plurality of wireless communication nodes communicating wirelessly with each other. The nodes each have a sensor providing a respective sensor...
7693673 Apparatus and method for identifying a defect and/or operating characteristic of a system  
An apparatus and methods for identifying a defect and/or an operating characteristic of a system being monitored (and/or one or more of the system's components) are described. In an embodiment,...
7530502 Clamp for a rail transducer  
A clamp for securing a transducer to a train rail comprises a bracket having a base which engages the foot of the rail. An upright arm at one end of the base extends adjacent the web of the rail...
7184930 Method and device for monitoring status of mechanical equipment and abnormality diagnosing device  
An abnormality diagnosis system for diagnosing a presence or absence of an abnormality of a bearing unit for a railway vehicle axle, comprises a sensing/processing portion for outputting a signal...
7026609 Method and apparatus for time-phased constant IR energy delta source  
The present invention comprises apparatus for calibrating a railway infrared hot box or hot wheel detector by delivering a desired radiant energy delta to the hot box detector. The apparatus...
6911914 Method and apparatus for detecting hot rail car surfaces  
In one embodiment of the present invention, an apparatus for detecting a hot rail car surface comprises: an infrared sensor for acquiring an infrared signal from a rail car surface of a rail car...
6872945 Apparatus and method for detection of railroad wheel and bearing temperature  
An apparatus and method is provided for detecting a temperature range or a temperature of a railroad train wheel or bearing wherein infrared radiation radiating from the wheel or bearing of a...
6813581 Statistical and trend analysis of railroad bearing temperatures  
A system is provided for tracking the wheel bearing temperatures of a train and selecting those that are statistically determined to be abnormally high, while eliminating from consideration, or...
6241196 Casing for a hot box or blocked brake detection scanner  
The invention relates to a casing for a hot box or blocked brake detection scanner (2) comprising infrared detectors and a heating means, wherein the casing is comprised of a casing lower part and...
6237877 Failed bearing indicator  
A failed bearing indicator for detecting and indicating an overheated axle journal in a railcar axle bearing. In a preferred embodiment the failed bearing indicator is characterized by an...
6184798 Unidirectional telemetry system  
A telemetry system comprises a plurality of beacons. Each beacon repetitively transmits a packet having a first predetermined time duration. The beacon transmits the packet a first predetermined...
5677533 Apparatus for detecting abnormally high temperature conditions in the wheels and bearings of moving railroad cars  
A method and apparatus are disclosed for sensing the temperature of bearings of vehicles traveling along a track, the apparatus including a linear-array infrared detector positioned adjacent to...
5478151 Device for detecting excessively heated components or locations in moving objects  
In a device for detecting excessively heated components or locations in moving objects, in particular in moving rail vehicles, such as bearings, brakes and/or wheel rims, having at least one...
5448072 Infrared hot bearing and hot wheel detector  
A detector apparatus uses two scanners on the right of way for monitoring the wheels of a moving train . The scanners scan the wheels transversely to the tracks along a common axis and generate...
5446451 On board hot bearing detector system with fault detection  
An on-board hot bearing detector system includes a microprocessor and heat sensors mounted on the train cars for sensing the bearing temperatures. Diagnostic circuitry is also provided to monitor...
5438322 Thermal sensor for detection of potential mechanical failures and transmission of temperature warning signals  
A frequency generating circuit and a cap-freeing mechanism in a bolt are responsive to a longitudinal movement of a piston in response to overheating of an associated bearing. The cap-freeing...
5407154 Hot bearing simulator  
Heaters are used to simulate wheel bearings at specified temperatures. Two heaters are mounted on each side of a railroad test car. The heaters are mounted on the sprung carriage of the car to...
5397900 Wheel-assembly monitor for diagnosing passing railroad trains  
A monitor to diagnose wheel assemblies of passing railroad trains, the monitor being characterized in that a cavity is present in and parallel to a measurement tie or in a hollow railroad tie, the...
5356098 Communication system for transmitting RF signals representative of defects or hazards in a railway system having frangible glass activation  
A communication system for submitting RF signals responsive to the currents of defects or hazards in a railway system wherein a reserve cell ampule containing an electrolyte is disposed in one...
5331311 Railroad wheel temperature sensor with infrared array  
A temperature sensor assembly for monitoring railroad car wheels includes an array of temperature detectors arranged to generate a temperature profile of the wheel. The array may be formed...
5315954 Hot bearing alarm  
The present invention relates to an alarm system suitable for use in warning of overheating in rotatable bearings 4 having first and second bearing portions. The alarm system comprises an alarm...
5203278 Temperature warning device  
A temperature warning device for indicating when a threshold temperature has been exceeded includes a threaded bolt having a bolt head and a bolt body. The bolt head and bolt body have a...
5201483 Process and system for measuring axle and bearing temperatures  
In a process for measuring axle bearing temperatures in order to locate hot wheels in moving railroad cars with infrared receivers and with an oscillating scanning beam that is oriented...
5149025 Detection of overheated railroad wheel and axle components  
Overheated railroad journal bearings, wheels, and other wheel components on a moving or stationary railroad train are detected by amplifying the current signal from an infrared radiation sensor...
4974797 Hot bearing simulator  
A hot bearing simulator is provided for verifying the proper operation of hot box detectors in a dynamic fashion. The hot bearing simulator employs a temperature controller and heater means...
4960251 Determining a reference in a method of detecting overheating of bearings  
Auto-correlation techniques are employed to monitor railway care wheel bearings. Three successive bearing temperatures A, B and C are measured and those two temperatures that are the closest in...
4812826 Thermal sensor for detection of railroad bearing failures  
A thermal sensor composed of a standard bolt which has been modified to embody a temperature sensing element and placed into a bearing assembly of a train. This element contains a heat-sensitive...
4805854 Gate circuitry for hot box detectors  
A gating circuit and method for controlling the output of data from the scanner of a heat detector in response to a bi-polar signal indicating the presence of an object within the scanning window...
4659043 Railroad hot box detector  
A hot box detector system is provided wherein heat signals from bearings within a housing are analyzed to determine if the scanned surface of the housing is an inner sidewall surface or an outer...
4501006 Hot-box signalling devices  
Hot-box signalling devices are disclosed for indicating the presence of overheated bearings in vehicles such as rail cars. The device includes means defining a closed compartment containing a...
4491290 Train defect detecting and enunciating system  
A train monitoring system for detecting hot boxes, dragging equipment and the like at the rail site, determining the location on the train of a monitored defect and annunciating the defect and...
4441196 Speed independent system for obtaining preselected numbers of samples from object moving along fixed path  
A speed independent system is used for obtaining a preselected number of samples from an object moving along a fixed path, such as a railroad train passing through a sensing zone along the section...
4323211 Self adjusting wheel bearing heat signal processing circuit  
A railroad car hot box detector system is provided which includes a variable circuit means for processing the heat signal generated by an infra-red detector viewing a sensing zone along a section...
4316175 Method for the advance indication of damage to wheel bearings  
In a method for advance indication of the possibility of damage occurring to wheel bearings of vehicles, particularly railroad vehicles, the temperatures of the wheel bearing sets of a plurality...
4313583 Railroad car wheel bearing heat signal processing circuit  
An improved method and circuit is provided for processing waveforms from a railway car heat signal to eliminate spurious signals and to differentiate between roller bearings and friction bearings...
4220300 Thermal monitor for railroad wheels  
An apparatus for the thermal monitoring of railway wheels is provided. The monitor comprises an insert placed into the railway wheel near its rim. If the wheel overheats, the monitor will be...
4119284 Railroad hotbox indicator  
A warning indicator including a housing attachable to the wheel and axle assembly of a railway car. An ejector assembly in the housing is spring biased to deploy a visual indicator in the presence...
Matches 1 - 50 out of 92 1 2 >