in Magnetic resonance imaging compatible catheter By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT A method, consisting of passing a cylindrical carbon fiber through a press so as to produce a flat ribbon. The method further includes weaving multiple strands of the flat ribbon together to create a cylindrical braid. Full Article
in Methods of manufacturing flow diverting devices By www.freepatentsonline.com Published On :: Tue, 21 Oct 2014 08:00:00 EDT Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measurable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system. Full Article
in Methods of manufacturing variable porosity devices By www.freepatentsonline.com Published On :: Tue, 28 Oct 2014 08:00:00 EDT Vascular treatment and methods include a plurality of self-expanding bulbs and a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Joints between woven structures and hypotubes include solder. Woven structures include patterns of radiopaque filaments measureable under x-ray. Structures are heat treated to include at least shapes at different temperatures. A catheter includes a hypotube including interspersed patterns of longitudinally spaced rows of kerfs. Heat treating systems include a detachable flange. Laser cutting systems include a fluid flow system. Full Article
in Energy-absorbing textile structure, in particular for use in vehicle construction and method for producing said structure By www.freepatentsonline.com Published On :: Tue, 04 Nov 2014 08:00:00 EST Energy-absorbing textile structure, in particular for use in vehicle construction, which has high-tensile yarns for absorbing force, is formed by a braided fabric (2) with standing ends (3) in the force input direction and in that the textile structure has at least one region (4) with local modification of the fiber structure (2, 3). Full Article
in Cables with intertwined strain relief and bifurcation structures By www.freepatentsonline.com Published On :: Tue, 25 Nov 2014 08:00:00 EST An electrical device such as a headset may have a cable. Wires in the cable may be used to connect speakers in the headset to a connector such as an audio jack. The cable may have a tubular intertwined cable cover that covers the wires. Computer-controlled servo motors in fiber intertwining equipment may be adjusted in real time so that intertwined attributes such as intertwining density and intertwining tension are varied as a function of length along the intertwined cable cover. The fiber intertwining equipment may make these variations to locally increase the strength of the intertwined cable cover and the cable in the vicinity of a bifurcation in the cable and in the vicinity of the portion of the cable that terminates at the audio jack. Full Article
in Methods of using non-cylindrical mandrels By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST Methods of forming a structure for treating a vessel include providing a mandrel and braiding a plurality of filaments around the mandrel. The mandrel may include a strand having a longitudinal axis and a plurality of balls coupled to the strand along the longitudinal axis. Pairs of the plurality of balls may be spaced along the longitudinal axis. Braiding the plurality of filaments around the mandrel may include, during braiding, forming a plurality of bulbs around the plurality of balls and forming necks between pairs of the plurality of balls. The methods may include, after braiding the plurality of filaments, heat treating (e.g., shape setting) the plurality of filaments on the mandrel. Portions of the braided plurality of filaments may be secured to the mandrel, for example using bangles, wire, and/or adhesive. Full Article
in Protective sleeve for motor component and method for manufacturing same By www.freepatentsonline.com Published On :: Tue, 16 Dec 2014 08:00:00 EST The protective sleeve for a motor component of the present invention is obtained by braiding multifilament yarns made of synthetic fibers into a cylindrical braided cord of at least 24 strands. The multifilament yarns have a single-yarn fineness of at least 15 dtex but less than 30 dtex and the yarn total fineness of a single braid unit of the braided cord is in the range of 800 to 1500 dtex. This protective sleeve has good covering properties and few voids. Therefore, a protective sleeve for a motor component is provided that has high partial discharge characteristics (electrical insulation performance) and good electrical insulation properties even when a step of washing away the raw yarn oil solution applied to the filaments was omitted. Full Article
in Non-cylindrical mandrels By www.freepatentsonline.com Published On :: Tue, 16 Dec 2014 08:00:00 EST A mandrel for manufacturing a vascular device for treating a vessel includes an elongate strand and a plurality of bulbs coupled to the elongate strand. The elongate strand may extend through each of the plurality of bulbs. The mandrel may include first and second elongate strands each including a plurality of bulbs. The first and second elongate strands may be separable at an intermediate portion coupling the first and second elongate strands. A vascular device manufactured utilizing the mandrel may be configured to treat a vessel. Full Article
in Braided tube to braided flat to braided tube with reinforcing material By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST A continuous braid structure has one or more first braid sections, each having a respective single flat braid or a respective single tubular braid. A plurality of second braid sections each have at least two flat braids with a gap between them. The second braid sections alternate with the one or more first braid sections. The adjacent first and second braid sections are continuous with each other. A length of material extends through the respective gap of at least one of the one or more second braid sections, so the length of material crosses one or more times between a first side of the continuous braid and a second side of the continuous braid. Full Article
in Method for braiding reinforcing fibers with variation in the inclination of the braided fibers By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A method of braiding reinforcing fibers on a mandrel (8) with a machine having a ring (9) carrying at least two series of reels of fibers, by moving the mandrel at a predetermined forward speed while moving the two series of reels along the ring (9) so that they cross while rotating in opposite directions and at a predetermined speed of rotation about an axis (AX) of the ring. The braid is formed on the mandrel (8) in the vicinity of a region of convergence (R) of the fibers that together define a conical shape (C). The method comprises: a step of reconfiguring the machine in which the angle (a2) at the apex of the cone (C) defined by the fibers takes on a new value (a2); and a step of restarting braiding in which the movement of the reels along the ring (9) and the forward movement of the mandrel (8) are re-established with a new speed of rotation and a new speed of advance. Full Article
in Medical implant and method for producing medical implant By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT The invention relates to a medical implant, particularly a stent, having a wall (11) braided out of multiple wires (10a, 10b) said wall extending along a longitudinal axis L and curving around the longitudinal axis L at least in sections, wherein in each case at least two wire ends (12) of the wires (10a, 10b, 10c, 10d) are connected to at least two first braid ends (13a, 13b) forming a first circumferential section (16a) of the wall (11) extending around the longitudinal axis L. The invention is characterised in that in each case at least two first braid ends (13a, 13b) are connected to one or more second braid ends (14a, 14b), wherein the second braid ends (14a, 14b) form a second circumferential section (16b) of the wall (11) extending around the longitudinal axis L and following the first circumferential section (16a) in sequence in the longitudinal direction or the second braid ends (14a, 14b) are arranged in the circumferential direction U of the wall (11). Full Article
in Method for manufacturing exhaust connection member with preformed braided cover By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An exhaust connection coupler and a method for manufacturing a braid cover incorporated therein are provided. The method of manufacturing comprises the steps of providing a tubular sleeve formed of braided wire filaments and forming at least one end of the sleeve into shape using a forming die such that the at least one end of the cover includes a circumferential neck portion having a diameter smaller than the diameter of a body portion of the cover. In the method, the sleeve may be pressed between male and female forming dies in order to create the cover's desired shape, which can include a shoulder extending radially outwardly from the cover's neck portion and meeting the cover's body portion at a corner. Full Article
in Method of manufacturing corrugated preform using braiding process By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method of manufacturing a corrugated preform that allows a fiber volume fraction and an orientation angle to be substantially the same at a concave portion and at a convex portion when the corrugated preform is manufactured based on a braiding process. The method includes braiding a composite material corresponding to an outer diameter of a cylindrical cylinder shape, braiding the composite material by connecting a plurality of separate composite materials to one side of the braided composite material, and braiding the composite material to one side of the separate composite material corresponding to the outer diameter of the cylindrical cylinder shape. Full Article
in System and method for vehicle communication, vehicle control, and/or route inspection By www.freepatentsonline.com Published On :: Tue, 02 Dec 2014 08:00:00 EST In a system and method for communicating data in a locomotive consist or other vehicle consist (comprising at least first and second linked vehicles), a first electronic component in the first vehicle of the vehicle consist is monitored to determine if the component is in (or enters) a failure state. In the failure state, the first electronic component is unable to perform a designated function. Upon determining the failure state, data is transmitted from the first vehicle to a second electronic component on the second vehicle, over a communication channel linking the first vehicle and the second vehicle. The second electronic component is operated based on the transmitted data, with the second electronic component performing the designated function that the first electronic component is unable to perform. Full Article
in Method and instrumentation for detection of rail defects, in particular rail top defects By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST Method and instrumentation for detection of rail defects, in particular rail top defects, in a railway-track by measuring an axle box acceleration signal of a rail vehicle, wherein a longitudinal axle box acceleration signal is used as a measure to detect the occurrence of said rail defects. The method also includes measuring a vertical axle box acceleration signal of said rail vehicle, whereby the longitudinal axle box acceleration signal is used in combination and simultaneously with said vertical axle box acceleration signal. It is preferred that the longitudinal axle box acceleration signal is used to remove from said vertical axle box acceleration signal a signal-part that relates to vibrations of the rail vehicle's wheel set, including the bearing and axle box, and that the axle box acceleration signals are filtered for removing signal-parts contributed by vibrations of the track, including the rail, rail pads, fasteners, sleepers, and ballast. Full Article
in Train signaling system and method for detecting distance-to-go of a train By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST A train signaling system, including a traffic signaling chain terminus set up unit configured to set a terminus location of a train running on the track and transmit a wireless traffic signal, a plurality of traffic signaling chain relay units installed along the track and configured to forward the wireless traffic signal and allow the wireless traffic signal to form a traffic signaling chain comprising distance-to-go information of the train, and a traffic signaling chain detection unit configured to allow the train to achieve the receipt of the information on the traffic signaling chain and calculate the distance-to-go of the train. A method for detecting distance-to-go of a train is also provided. Full Article
in Automated calibration method for a dragging equipment detector By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST A method for calibrating a moving object impact detector is disclosed. A controller may receive input indicative of movement of an impact element from a first position to a second position. The controller may also receive an activation signal corresponding to the movement of the impact element. The controller may further receive input indicative of instructions to correlate the activation signal with the movement of the impact element. The controller may selectively set the activation signal as a reference signal for the detector, with the reference signal being indicative of an impact the moving object impact detector is set to detect. Full Article
in Vehicle coupling fault detecting system By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST A vehicle coupling fault detecting system is disclosed. The system may include first and second selectively-pressurized fluid conduits containing first and second communication cables that are communicatively coupled when the first and second fluid conduits are connected together. A pressure sensor may detect a pressure within the fluid conduits when the conduits are connected together, and communicate a signal indicative of the pressure through at least one of the first and second communication cables. A controller may receive the signal and determine from the signal whether there is a fault in the connection between the first and second selectively-pressurized fluid conduits. Full Article
in Graduated vehicle braking By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST A method for automatically controlling braking of a powered system or consist includes automatically applying a first degree of braking to a consist during a first time period when a powered unit of the consist is being locally or remotely controlled via an onboard control system in an absence of control inputs from an onboard operator. The first degree of braking is based on a first deceleration force selected so that the consist is slowed in a manner effective to limit a peak deceleration rate experienced by the consist sufficient for reducing unintended movement of at least one of one or more riders or cargo onboard the consist. The method also includes automatically applying a second degree of braking to the consist during a second time period following the first time period. Full Article
in Railway signalling system and on-board signalling system By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST In a railway signalling system which transmits a control order to an on-board signalling system by a trackside signalling system, the on-board signalling system being mounted on a train running on a line and the control order being compliant with a signalling system of the line, the present invention allows the train to run through into lines with different signalling systems using a single on-board signalling system. When the train enters a line with a different signalling system from a current line, the on-board signalling system installs a train control application program compliant with the signalling system of the entering line. Then, the on-board signalling system executes the train control application program, allowing the train to be controlled on the entering line according to a control order created by the trackside signalling system of the entering line. Full Article
in Systems and methods for determining route location By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST A system includes a communication module and a determination module. The communication module is configured to be located onboard a vehicle configured to travel along a route including plural sub-routes. The communication module is configured to receive route occupancy information from an off-board wayside module disposed along the route. The route occupancy information corresponds to a presence or absence of vehicular traffic on each sub-route within a range of a route detection system operably coupled to the wayside module. The determination module is configured to be located onboard the vehicle, and to obtain position information from one or more onboard detection units disposed onboard the vehicle. The determination module is configured to determine a particular sub-route on which the vehicle is disposed using a comparison of the position information obtained from the one or more onboard detection units and the occupancy information received from the off-board wayside module. Full Article
in Consist communication system having bearing temperature input By www.freepatentsonline.com Published On :: Tue, 06 Jan 2015 08:00:00 EST 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 a performance parameter of the component. The system may further include a controller, a fluid conduit, at least a first cable disposed within the fluid conduit and configured to transmit the signal from the sensor to the controller, and a glad-hand coupling fixedly connected to an end of the fluid conduit. Full Article
in Train-position locating device and train-position locating method By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST A train-position locating device includes an onboard control device incorporated in a train and a ground control device installed on a ground. The onboard control device decides a track on which a train is present based on position information and a result of a nearest track search, transmits identification information for identifying the own train and track information to the ground control device, and shifts to an onboard-oriented train control mode when receiving a response indicating “position is located” from the ground control device. The ground control device transmits a response indicating “tentative position is normal” to the onboard control device when another train located to be present on a track is not present on the tentative position, and transmits the response indicating “position is located” to the onboard control device when a change from a previous track to the changed track is correct. Full Article
in Train end and train integrity circuit for train control system By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST A train system that includes a plurality of train units including a first train unit and second train unit coupled together. Each first and second train unit includes a controller configured to detect a change in train configuration of the train units, and comprising a plurality of inputs; train integrity signal lines spanning each train unit and coupled with the controller at the plurality of inputs and configured to transmit signals between a front end and a rear end of the train system, the signals indicating a status of train integrity of the train system; and a plurality of relays in communication with the controller, and configured to indicate a coupling or non-coupling status of each train unit. Full Article
in Method and apparatus for positioning a rail vehicle or rail vehicle consist By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST A tower control system, under an indexing mode of operation, receives a first signal from rail yard equipment. In response to the first signal, the tower control system establishes a positioning mode of operation. Under the positioning mode of operation, and in response to actuation of an interface of the tower control system, the tower control system sends a second signal to a lead powered rail vehicle of a consist. The second signal includes a first command to adjust a throttle setting of the lead powered rail vehicle, along with a second command to idle a throttle of any remote powered rail vehicle of the consist. Full Article
in Device for automatically controlling signals and multiple trans traveling on the same track By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST An electrical device not only controls train signals as trains advance, but also alters the voltage in the tracks leading up to the signals so that the trains will actually stop at a red signal, slow at an amber aspect and continue on at full speed when the signal is showing green. The electrical device of the present invention can change the “block signal” from “green” to “red”, thereby signaling the engineer behind the train to come to a stop. In addition, the electrical device can simultaneously change the voltage in the tracks to stop the approaching train at the red signal. Only when the forward train has cleared will the approaching train get a clear signal and voltage to resume its forward progress. Full Article
in Method of detecting and signalling a hot box condition By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST 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 sensors provided in hot box detection devices; relaying temperature data through a wireless network of the hot box detection devices to a data recorder. Full Article
in Method to replace an instrument case and replacement case therefor By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST A method designed to replace a compromised instrument case with a new case without the need to disconnect any wire, relay or any other electric equipment is described herein. The instrument panel is supported for example by a temporary support frame during the dismantling of the old case and the assembly of the new case. The new case is therefore assembled on site around the instrument panel. The new instrument case includes a floor which is made of at least two parts, one on each side of the wiring. The instrument case therefore remains in a normal working mode during the entire replacement procedure thus preventing downtime. As well, the amount of manpower required for the replacement of an instrument case is drastically reduced. Full Article
in Wireless video for model railroad engines providing an engineer's view By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST An Engineer's View (EV) wireless video system for powered and unpowered model railroad engines is disclosed. The invention uses commercially available wireless spy cameras, powered by a custom power supply circuit which is compatible with either DC or DCC track systems. The present invention is compatible with all commercial model railroad gauge diesel engines including HO and N Gauge or may be factory installed. The EV system demonstrates a remarkably stable and realistic image of a model railroad layout. Moreover, the present invention may also provide a stable source of power to the engine where stalling could occur at points of track defects. Full Article
in Train operation control system By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST In accordance with a predetermined segment definition rule based on a point-switch protection section, a point switch control direction, and a train advancing direction, a plurality of segments are defined in advance with respect to a railway network. Segment competition information in which a competitive relationship between the plurality of segments is set in advance is prepared. A segment use permission setting part determines whether or not a competition for a use-requested segment in terms of a train operation occurs between the plurality of trains, by using segment competition information and segment use permission status information. A use-requested segment for which it is determined that no competition occurs is incorporated, as a use permission segment, into use permission segment information of the corresponding train. In accordance with a result of the competition determination, the segment use permission status information is updated. Full Article
in Interactive digital drawing and physical realization By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A system and method for interactively producing a 3D representation of a vector graphic is disclosed. A vector graphic representing a 2D graphic having a number of endpoints joined by vector segments is automatically or interactively converted into a triangulated mesh in a form readable by a 3D printer. The conversion from vector graphic to a triangulated mesh is accomplished by generating an n-sided polygon in the vicinity of each endpoint of the vector graphic. Each of the vertices of the polygon are then be joined by a line to a corresponding vertex on the next adjacent polygon. Each vertex is also joined to an adjacent vertex on the next adjacent polygon. The process is continued until all polygons are joined, resulting in a triangulated mesh, which is then converted into a format readable by a 3D printer and sent to a 3D printer to produce the 3D representation. Full Article
in Method for improving operation density of rail vehicles and preventing head-on collision and rear-ending collision By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT The present invention provides a method for improving operation density of rail vehicles and for preventing head-on collision and rear-ending collision. Said method divides a rail line into equidistant electronic zones, the length of a zone being greater than the shortest safe distance between two running vehicles. Said method installs a locomotive passing detection alarm device in each zone, when a locomotive travels at high speed on the rail, the locomotive passing detection alarm device corresponding to the zone occupied by the locomotive itself will simultaneously access adjacent front and back zones, and determine whether the two adjacent zones are simultaneously occupied by locomotives. If the two adjacent. zones are simultaneously occupied by locomotives, the locomotive passing alarm device will send an alarm signal to the locomotives to warn or otherwise take measures. The aforesaid method can avoid locomotive head-on collision and rear-end collision and increase transportation density according to the vehicle speed and distance at the same time, thus improving the transportation efficiency. Full Article
in Railway system using acoustic monitoring By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A method of monitoring and/or controlling components of a railway system which includes a track and at least one train that is operable to run on said track, comprises the steps of: a) providing an acoustic transducer proximate the railway for picking up acoustic signals; b) receiving acoustic signals from the transducer; and c) analyzing the received signals. Full Article
in On-board device for train control system By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT An on-board device capable of receiving train control signals from ground-side equipment of train control systems of different types or the like to control the speed of a train and the like appropriately, is provided. An on-board device 10 mounted on a train 1 includes ATC/TD antennas 11a, 11b that receive an ATC signal including train control information from loop coils installed along a route of the train 1, a vehicle radio set 12 that receives a CBTC signal including train control information from wayside radio sets installed along the route, an ATC control unit 141 that controls the train 1 based on the train control information in the ATC signal, a CBTC control unit 142 that controls the train 1 based on the train control information in the CBTC signal, and a selection unit 143 that selects the ATC control unit 141 or the CBTC control unit 142. Full Article
in Swivel point connector for railroad switches By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A mechanism for coupling a switch point to a point detector box having a point detector bar includes a first portion structured to be slidably coupled to the point detector bar and a second portion structured to be slidably coupled to the switch point. Full Article
in 1,3,5-triazine derivatives of spiro bicyclic oxalamide-compounds for treatment of hepatitis C By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT Compounds of Formula I, including pharmaceutically acceptable salts, as well as compositions containing these compounds, have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV: Full Article
in Apparatus and method for implementing safe visual information provision By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT The invention relates to an apparatus and method which allows information representing a state or condition or an action to be performed as part of a control system to be present to one or more users. The information is selected and generated in a manner which removes or at least reduces the risk of potentially catastrophic error occurring which would be possible if, for example, the information is corrupt or lost during subsequent transmission, remote processing and/or displaying. One such use of the apparatus and method of the invention is in relation to transport vehicles and the control of the movement of said vehicles along predefined geographical paths. Full Article
in Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT 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 system comprises at least one sensor for providing trackside conditions electrically connected to a circuit for providing trackside conditions to a railroad, said sensor being powered by voltage applied to the circuit such that the sensor is energized only when said electrical component is engaged. The system and method further comprises a method and system which is failsafe and which enables the control system to independently verify signals from each sensor. Full Article
in Method for operating a railway section and corresponding railway section By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A method for operating a railway section that includes section elements, which are each actuated by a processor that is reliable in terms of signaling and cyclically carries out a test routine. A railway section is configured for carrying out the method. In order to save energy and cost, the processor is operated selectively in active mode or sleep mode. From the sleep mode the processor is switched to the active mode for the duration of the test routine by way of a timer logic element that is reliable in terms of signaling. Full Article
in System and method for determining a slack condition of a vehicle system By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A method for determining a slack condition of a vehicle system includes determining when each of first and second vehicles reaches a designated location along a route. The method also includes communicating a response message from the second vehicle to the first vehicle responsive to the second vehicle reaching the designated location, calculating a separation distance between the first vehicle and the second vehicle based on a time delay between a first time when the first vehicle reached the designated location and a second time when the second vehicle reached the designated location, and determining a slack condition of the vehicle system based on the separation distance. The slack condition is representative of an amount of slack in the vehicle system between the first and second vehicles. Full Article
in Train control system with pulse-code-modulated cab signaling By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A train control system with pulse code-modulated cab signaling, especially for defining traveling speeds, includes a code generator acting upon a signal generator in dependence on a direction of travel. An output signal of the signal generator is supplied to a current track circuit covering a track section. In order to economize on components, the signal generator includes a transmitting device for modulating the input signals of both code generators. The transmitting device is connected to circuit connection adaptation devices on one of two entry ends of the track section through travel direction-specific outputs. Full Article
in Acoustical warning system By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A locomotive warning system includes an acoustical warning subsystem configured to emit variably directed sound. A controller subsystem is responsive to an initiation command and is configured to trigger the acoustical warning subsystem to begin a sounding sequence when the initiation command is received at a first directivity angle and to continue the sound blast sequence at increasing directivity angles for a pre-establish time and/or distance traveled. Full Article
in Ground device for train control system By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A ground device 1 transmits train control information to an on-board device mounted on a train. The ground device 1 receives a train detection signal (TD signal) from a train with an ATC/TD on-board device mounted thereon through loop coils 21 to 2m, and receives a train position signal from a train with a CBTC on-board device mounted thereon through wayside radio sets 61 to 6n. Based on the input train detection signal and train position signal, the ground device 1 detects the position of each train traveling on a route R, generates control information on each train based on the detected position of each train, and converts the control information to an ATC signal and a CBTC signal. The ATC signal is transmitted to the loop coils 21 to 2m through information transmission units 4, and the CBTC signal is transmitted through the wayside radio sets 61 to 6n. Full Article
in System and method for determining dynamically changing distributions of vehicles in a vehicle system By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT A system and method for determining dynamically changing distributions of vehicles in a vehicle system are disclosed. The system and method determine handling parameters of the vehicle system. The handling parameters are determined for different distributions of the vehicles among different groups at different potential change points along a route. The system and method also determine whether to change the distributions at potential change points based on the handling parameters. Based on determining that the distributions are to change, a selected sequence of changes to the distributions is determined at one or more of the potential change points along the route. Change indices are generated based on the selected sequence. The change indices designate times and/or the one or more potential change points at which the distributions changes. The vehicles included in a common group have common designated operational settings while the vehicles are in the common group. Full Article
in Train control system By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT With respect to each of trains, a ground device 6 detects a train location in the control section on the basis of a propagation time of a radio wave between a vehicle radio set 4 and a wayside radio set 5, in the case in which the ground device 6 determines that the number of trains has reached the controllable number of trains or there is the possibility that the number of trains reaches the controllable number of trains in its own control section, a ground device 6 disposed in an adjacent control section to the control section in which the number of trains is reaching the controllable number of trains, when a train 2 scheduled to travel toward the control section stops in a station 8, prevents departure of the train 2 scheduled to pass through the border of the control section by making the train 2 wait at the station 8. Full Article
in On-board transponder device and method of verifying soundness thereof By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The present invention includes a telegraph controller and an FSK modulator that serve as a signal transmission unit that creates a checking telegraph that is different from a controlling telegraph and transmits the checking telegraph to a pickup coil, an FSK demodulator and a telegraph controller that serve as a signal reception unit that restores telegraph information from the checking telegraph received via the pickup coil, and a communication controller that compares transmission telegraph information included in a checking telegraph transmitted from the signal transmission unit with reception telegraph information restored from a received checking telegraph that includes the transmission telegraph information to verify a telegraph reception function on an on-board side. Full Article
in Warning horn control system, radar system, and method By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT There is provided a radar system that includes an emitter system (e.g., an antenna), configured to emit electromagnetic pulses and detect electromagnetic pulses, and a reflection target, placed opposite the emitter system. The emitter system and the reflection target define an area of interest. A controller is configured to identify a reflection from the reflection target and, if the reflection is not identified, to stop sending a radar check signal. The radar system may be part of a warning horn control system, where the radar check signal is used as a control input for activating a warning horn. Full Article
in Train control system By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A train control system includes: an on-board device 3 mounted on each of trains 2; a vehicle radio set 4; wayside radio sets 5 disposed on a ground; and a ground device 6 connected to the wayside radio sets 5. The ground device 6 obtains a location information of a train 2 and a location information of a following train 2 based on results of distance measurement based on communication between the wayside radio sets 5 and the vehicle radio sets 4, and the ground device 6 transmits them to an on-board device 3 of the train 2. The on-board device 3 calculates a stop limit position of the following train 2 based on the location information of the train 2 and the location information of the following train 2, and the on-board device 3 transmits the calculated stop limit position to the following train 2. Full Article
in Train detection By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Occupancy of a railroad track detection zone by one or more trains is determined using sensor devices located at gateways into and out of the track detection zone. Each sensor device has a sensing range that includes a portion of the railroad track in the detection zone and the sensor device generates data used to uniquely identify each train passing through a gateway and thus the sensing range of one or more sensor devices. Data from the detection zone's sensor device array is collected and evaluated to monitor or track the status of any detected trains and the occupancy of the zone. In some embodiments, the sensor devices utilize anisotropic magnetoresistive sensor elements whose analog waveform data is the basis of magnetic flux peak detection and mapping to generate unique train identification signature data that is transmitted to and evaluated by a detection zone processor, which in some cases can control crossing signals and/or other control apparatus related to the railroad track detection zone. The unique train identification signature data can include digitized amplitude peaks and their sequence for each train, based on that train's generated analog waveform data. Full Article
in Systems and methods for providing constant warning time at crossings By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A system includes a determination module and a communication module. The determination module is configured to be located onboard a first vehicle configured to travel along a first route including a crossing corresponding to an intersection of the first route with a second route. The determination module is configured to be communicatively coupled with a remote crossing module. The determination module is configured to determine, based on a speed of the first vehicle, timing information corresponding to a time at which the first vehicle will travel proximate to the crossing on the first route. The communication module is configured to transmit the timing information to the remote crossing module. The timing information includes a reference time configured as an absolute time corresponding to a time for impeding travel of a second vehicle along the second route through the crossing. Full Article