rai Mast safety restraint mechanism By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT Described herein is a safety restraint mechanism for a mast assembly. The safety restraint mechanism comprises a tension line attached to a lever and a winch mechanism such that operation of the winch mechanism translates a carriage assembly along the mast. A cam brake including an engagement profile at a first end thereon is pivotally attached to the lever at a second end. The cam brake is also pivotally attached to the carriage assembly such that the engagement profile pivots into a brake position or a free lift position relative to a tension force acting on the lever. The lever is pivotally attached to the second end and includes a kickstand. The engagement profile having a protruded portion to abut the tubes in a brake position and a relief portion to space the cam brake from the tubes in a free lift position. Full Article
rai Fixing element for locking a hinged hand crank on the input shaft of a support winch for a semi-trailer By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT The invention relates to a fixing element for locking a hinged hand crank on the input shaft of a support winch for semi-trailers, wherein the hand crank is fastened to the input shaft in an articulated manner and can pivot between at least one folded-in rest position and at least one folded-out usage position. According to the invention, said fixing element has a fastening section for fastening to the hand crank and a spring bar connected to the fastening section on which at least one locking section is formed, wherein the locking section reaches over the end face of the input shaft in a form-fitting manner in a folded-out usage position of the hand crank and is simultaneously pulled against said end face of the input shaft. Full Article
rai Compositions and methods for permanent straightening of hair By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Improved hair straightening topical compositions comprising transglutaminase, sodium metabisulfite, and a system for stabilizing the pH of the composition, and for inhibiting the generation of sulfur dioxide. Optionally, one or more additional hair straightening agents, that are capable of affecting secondary, tertiary and quaternary protein structures of human hair may be included. Optionally, polylysine may be included which, in combination with TGase, acts to form a surface barrier film and moisture shield around human hair. The invention includes methods of using such topical compositions. Full Article
rai Servo-controlled three axis wire straightening device By www.freepatentsonline.com Published On :: Tue, 01 Jul 2014 08:00:00 EDT A wire straightener comprises a wire feed path, a first set of rollers disposed in a first plane along the wire feed path, a second set of rollers disposed in a second plane along the wire feed path, the first and second planes being substantially perpendicular to one another, a first motor operable to adjust a position of at least one of the rollers of the first set of rollers when actuated, and a second motor operable to adjust a position of at least one of the rollers of the second set of rollers when actuated. Full Article
rai Wire straightening apparatus By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A straightening apparatus for straightening wires comprises an entry-side roll arrangement and an exit-side roll arrangement, which are arranged so that a wire that is to be straightened, viewed in a transport direction, arrives between rolls of the entry-side roll arrangement in the straightening apparatus and, after passing between rolls of the exit-side roll arrangement, leaves the straightening apparatus, a distance between two rolls of the exit-side roll arrangement being settable. Furthermore, a pre-definable force F acts on the wire perpendicular to the transport direction between two rolls of the entry-side roll arrangement. Full Article
rai Cable-driven trailer loading system for liner By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST A cable-driven liner loading system for loading of an invertible liner onto a trailer bed and unloading the invertible liner from the trailer bed. A movable trolley is supported between a pair of tracks defined by C-shaped members. The movable trolley is actuated by a cable system that is driven by a winch and a set of pulleys, permitting the movable trolley to move along an axis of the trailer bed to facilitate loading of the invertible liner in a serpentine-like manner. Full Article
rai Slant-truss crane rail By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST In one aspect, the invention is directed to an overhead crane with one or more bridge rails, that incorporates a reinforcement truss into its one or more bridge rails so as to reduce the overall mass of the one or more bridge rails. This facilitates movement of a load carried by the bridge by an operator to a destination point, particularly in embodiments wherein the one or more bridge rails do not have any bridge drive motors thereon. Reducing the mass of the bridge can increase the amount of lifted load that can comfortably be maneuvered by an operator, particularly when the bridge is manually moved along the runway. Additionally, reducing the mass of the bridge reduces the momentum associated with the bridge, which can increase the amount of control that the operator has when it is desired to stop the bridge when the load has been maneuvered to its desired destination point. The second reinforcement members may have first and second ends that are inserted into receiving apertures in the first reinforcement member and in a bracket that mounts to the bridge rail respectively. In embodiments wherein the bridge includes two rails and is capable of supporting a load in such a way as to generate a downward force that is offset from the bridge axis, the second reinforcement members may be connected to the first reinforcement member and to brackets in such a way as to prevent the withdrawal of the second reinforcement members from the receiving apertures. Full Article
rai Cabling configuration for railless elevators By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT An elevator including a car is arranged in a shaft. A set of compensator cables are attached to a bottom of the car and engaged with a compensator drum. A set of hoist cables are attached to a top of the car and engaged with a hoist drum to move the car vertically in the shaft, wherein the set of compensator cables and the set of hoist cables are configured to only move the car vertically. Full Article
rai Lift systems with continuous in-rail charging By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT Rail-mounted lift systems are disclosed. In one embodiment, the lift system includes a rail having at least one conductor positioned on an upper interior surface of the rail. A carriage may be slidably disposed in the rail for relative movement to the rail. The carriage generally includes a carriage body, at least one pair of support wheels rotatably coupled to the carriage body and slidably engaged with the rail, and a conductor truck comprising at least one conductive roller rotatably attached to the conductor truck. The conductor truck may be mounted to the carriage body with a biasing member upwardly biasing the conductive roller into rolling engagement with the at least one conductor. A lift unit may be coupled to the carriage body and includes a motor paying out and taking up a lifting strap. The lift unit is electrically coupled to the at least one conductive roller. Full Article
rai Non-return valve assembly of the pivoting flap type, typically for insertion in floor drains By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A valve assembly (10) is to be used in conjunction with a tubular member having an internal surface surrounding a passage into which the valve assembly is to be sealingly inserted. The valve assembly includes a tubular body (25) having a longitudinal passage and an outer surface to be located adjacent the internal surface. A seal (29) is mounted on the outer surface to engage the internal surface to sealingly connect the tubular body with the tubular member. A movable valve member (33) is movable between an open position providing for the flow of water from an upstream end to a downstream end of the passage of the tubular body and a closed position closing the passage. Resilient means, such as a spring (34) urges the valve member to the closed position. The resilient means is configured to provide for displacement of the valve member toward the open position when pressure beyond a predetermined pressure is applied upon the movable valve member. Full Article
rai Method and apparatus for braiding micro strands By www.freepatentsonline.com Published On :: Tue, 17 Sep 2013 08:00:00 EDT A method and apparatus for fabricating microbraided structures is provided. A microbraiding device includes first and second carrier members that are movable with respect to each other. Each carrier includes a plurality of shelters. Spool-less strands of microfiber are retained in shuttles that are movable between the first and second shelters under magnetic forces. The microbraid structure is fabricated as the shuttles move between the first shelters, and as the first carrier member moves relative to the second carrier member. Full Article
rai Braided carbon nanotube threads and methods of manufacturing the same By www.freepatentsonline.com Published On :: Tue, 22 Oct 2013 08:00:00 EDT A braided carbon nanotube thread includes at least three carbon nanotube filaments braided into a thread. The carbon nanotube filaments include a plurality of carbon nanotubes, each of the carbon nanotubes having a length L. The carbon nanotube filaments are braided such that the carbon nanotube thread has at least 8 intersections per the length L of each carbon nanotube. The carbon nanotube thread has a tensile strength greater than the tensile strength of the constituent carbon nanotube filaments. Full Article
rai Balloon with dividing fabric layers and method for braiding over three-dimensional forms By www.freepatentsonline.com Published On :: Tue, 31 Dec 2013 08:00:00 EST A medical balloon with a variable diameter that is reinforced with continuous fibers woven to form a fabric with a varying number of layers and fiber densities. Portions of the balloon having a relatively smaller diameter are reinforced with a fabric having a reduced fiber density and an increased number of layers to facilitate the placement of the layers. The fabric also includes a braiding pattern that facilitates the transition from a single layer fabric to a multiple layer fabric. Also described is a manufacturing method for the braiding and layering. Full Article
rai Self-expanding pseudo-braided intravascular device By www.freepatentsonline.com Published On :: Tue, 18 Mar 2014 08:00:00 EDT A self-expanding, pseudo-braided device embodying a high expansion ratio and flexibility as well as comformability and improved radial force. The pseudo-braided device is particularly suited for advancement through and deployment within highly tortuous and very distal vasculature. Various forms of the pseudo-braided device are adapted for the repair of aneurysms and stenoses as well as for use in thrombectomies and embolic protection therapy. Full Article
rai Braiding device for catheter having acuately varying pullwires By www.freepatentsonline.com Published On :: Tue, 18 Mar 2014 08:00:00 EDT A braider for braiding wires to a tube comprising an iris assembly having stacked iris plates. Each of the iris plates includes a center aperture, a wire orifice disposed radially outward from the center aperture, and an arcuate channel. The iris plates are rotatable relative to each other to adjust a circumferential orientation of the wire orifices relative to each other. The arcuate channel(s) of each respective iris plate is coincident with the wire orifice(s) of the remaining iris(es). The braider comprises a feeder assembly configured for advancing the tube through the center apertures, and advancing the wires through the respective wire orifices. The braider further comprises a braiding assembly configured for braiding a plurality of filaments around the tube and the plurality of wires as they are fed through the iris assembly, thereby creating a braided tube assembly. Full Article
rai Braided prosthetic sockets with attachment plates and methods of manufacture By www.freepatentsonline.com Published On :: Tue, 08 Apr 2014 08:00:00 EDT This invention provides new above knee (AK) and below the knee (BK) prosthetic sockets and implements specific manufacturing processes for the production of prosthetic sockets through the automated, computer controlled bi-axial and tri-axial braiding of sockets, over a mold or mandrel made of carved foam, plaster material or wax that is a replica of the patient's truncated limb, and is created by a Computer Aided Design (CAD) file controlling a Numerically Controlled (CNC) machine tool. This method of manufacture using aerospace fibers such as graphite or Kevlar, and high performance resins, is used to create a socket which is stronger and lighter weight than conventionally manufactured sockets. Braiding also allows incorporation of woven cloth, tapes and other reinforcements into the braiding process for added strength at selected areas. The method dramatically decreases the production time and cost of the prosthetic relative to conventional methods. Full Article
rai Automated systems and methods for making braided barbed sutures By www.freepatentsonline.com Published On :: Tue, 27 May 2014 08:00:00 EDT A system for making braided barbed sutures includes a filament winding assembly, and a guide assembly including at least one barbed insert dispenser opening defining a passageway for orienting a barbed insert. The guide assembly is adapted to dispense at least one barbed insert from the dispenser opening into the filament winding assembly for winding a plurality of filaments around the at least one barbed insert for making a braided barbed suture. The passageway of the dispenser opening is adapted to allow longitudinal movement of the barbed insert relative to the passageway while simultaneously preventing twisting movement of the barbed insert relative to the passageway. As the barbed insert is being dispensed, the barbed insert dispenser opening is selectively rotatable for imparting rotation to the barbed insert as the filaments are wound about the barbed insert. The passageway may be an elongated slit having a greater width than height. Full Article
rai Machine for alternating tubular and flat braid sections and method of using the machine By www.freepatentsonline.com Published On :: Tue, 05 Aug 2014 08:00:00 EDT A braider comprises a plurality of horngears. The horngears can be arranged for forming at least two closed paths for braiding. Each horngear has a driving gear and a hornplate. Each horngear can be selectably operated in a first mode, to rotate with the driving gear, and in a second mode, in which the driving gear rotates, but the hornplate does not. Bobbin carriers are positioned on some of the horngears. A track is configurable in: a first flat braiding mode with the carriers arranged on the horngears, so that there is one or more separate closed path for forming a first flat braid configuration; and a second flat braiding mode for forming a second flat braid configuration different from the first flat braid configuration. A switch is provided for changing a configuration of the track between the first and second flat braiding modes. Full Article
rai 3D braided composited tubes with throat sections and manufacture method thereof By www.freepatentsonline.com Published On :: Tue, 26 Aug 2014 08:00:00 EDT A manufacture method of a three dimensional (3D) braided composite tube with a throat section includes: providing an assembled mandrel comprising an upper mandrel and a lower mandrel, and braiding an 3D braided inner layer on the upper mandrel; winding fiber yarns to form a fiber yarn layer over the 3D braided inner layer; tightening the 3D braided inner layer to the assembled mandrel by an appropriate tension force when winding; and infiltrating resin and increasing temperature to cure the resin for obtaining a composite tube with a narrower throat section. The present invention takes advantage of winding fiber yarn outer layer to keep the radius of the throat of the 3D braided inner layer to meet design requirement. Additionally, the hoop strength of the throat section is increased so that the metal shell can be made thinner to reduce the weight of the rocket nozzle. Full Article
rai Braiding mechanism and methods of use By www.freepatentsonline.com Published On :: Tue, 02 Sep 2014 08:00:00 EDT A tubular braid and mechanisms for forming the braid are described. The mechanism for braiding includes a disc, a mandrel, a plurality of catch mechanisms, and a plurality of actuators. The disc defines a plane and a circumferential edge. The mandrel extends from a center of the disc and is adapted to hold a plurality of filaments extending radially from the mandrel toward the circumferential edge of the disc. The plurality of catch mechanisms are positioned circumferentially around the edge of the disc and are adapted to engage a filament. The plurality of actuators are configured to move relative to one another and are adapted to move the plurality of catch mechanisms in a substantially radial direction relative to the circumferential edge of the disc. Full Article
rai Braiding mechanism and methods of use By www.freepatentsonline.com Published On :: Tue, 09 Sep 2014 08:00:00 EDT Devices and methods for forming a tubular braid comprising a plurality of filaments. The braiding machine includes a circular array of filament guiding members defining a plane; a mandrel defining an axis and adapted to carry one or more filaments extending from the mandrel to the circular array; a plurality of filaments extending from the mandrel in a radial array; a plurality of actuator mechanisms disposed operably about the disc; and a rotating mechanism adapted to rotate one or more filaments. The actuator mechanisms and rotating mechanism are configured to move each of the one or more filaments about the mandrel axis in a path comprising a series of arcs and radial movements. The braiding machine may alternately first and second annular members, a mandrel, first and second plurality of tubular wire guides, and a plurality of wires extending from the mandrel. Full Article
rai Braiding mechanism and methods of use By www.freepatentsonline.com Published On :: Tue, 16 Sep 2014 08:00:00 EDT Devices and methods for forming a tubular braid comprising a plurality of filaments. The method for braiding includes the step of loading a plurality of filaments on a mandrel and extending the filaments radially from the mandrel, the plurality of filaments have a first subset and a second subset. Tension is applied to the plurality of filaments using a weight attached to each filament. The first subset of the plurality of filaments is engaged, moved circumferentially relative to the second subset, and then released. The second subset of filaments is then engaged and moved circumferentially relative to the first subset of filaments, such that a tubular braid of filaments is formed. Full Article
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai Wayside measurement of railcar wheel to rail geometry By www.freepatentsonline.com Published On :: Tue, 06 Jan 2015 08:00:00 EST Considerable damage to rails, wheels, and trucks can result from geometric anomalies in the wheelsets, rails, and truck hardware. A solution for identifying and quantifying geometric anomalies known to influence the service life of the rolling stock or the ride comfort for the case of passenger service is described. The solution comprises an optical system, which can be configured to accurately perform measurements at mainline speeds (e.g., greater than 100 mph). The optical system includes laser line projectors and imaging cameras and can utilize structured light triangulation. Full Article
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai 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
rai Electronic condition detection system and method for railcars By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT 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 with each of the plurality of condition sensors so as to receive condition data from the plurality of condition sensors. The transceiver transmits the condition data to a receiving station remote from the railcar for review and analysis. Full Article
rai 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
rai 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
rai 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
rai 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
rai 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
rai Rail collision threat detection system By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A detection system may include a transmitter associated with a first train configured to emit an end-of-train signal. The detection system may include a receiver associated with the transmitter and configured to receive the end-of-train signal from the transmitter. The receiver may also be configured to receive at least one remote signal from a second train and determine whether the second train is a collision threat based on the remote signal from the second train. Full Article
rai 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
rai 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
rai 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
rai Method and apparatus for limiting in-train forces of a railroad train By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An apparatus for operating a railway system, the railway system comprising a lead vehicle consist, a non-lead vehicle consist and railcars, the apparatus including a first element for determining a slack condition of railway system segments, wherein the segments are delineated by nodes, and a control element configured to control an application of tractive effort or braking effort of the lead vehicle consist or the non-lead vehicle consist. Full Article