| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 246167000 |
CAB SIGNAL OR TRAIN CONTROL
| 105 |
| 246122000 |
TRAIN-POSITION INDICATION
| 55 |
| 246415000 |
SWITCHES
| 45 |
| 246020000 |
BLOCK-SIGNAL SYSTEMS
| 32 |
| 246002000 |
TRAIN DISPATCHING
| 28 |
| 246125000 |
ELECTRIC AUTOMATIC HIGHWAY SIGNALS, MINE DOORS, AND GATES
| 24 |
| 246120000 |
ROADWAY-DEFECT PROTECTION
| 18 |
| 246473000 |
SIGNALS
| 18 |
| 246218000 |
ELECTRIC ACTUATION
| 18 |
| 246001000 |
MISCELLANEOUS
| 11 |
| 246111000 |
GRADE-CROSSING TRACK PROTECTION
| 9 |
| 246454000 |
CROSSINGS, FROGS, AND MATES
| 6 |
| 246257000 |
FLUID-MOTOR ACTUATION
| 6 |
| 246131000 |
INTERLOCKING | 5 |
| 20090256030 | Lock extension for train derail - The present disclosure relates generally to an improved safety device for use in the railroad industry. Specifically, the present disclosure relates to an above ground lock extension for train derails. Train derails are used in the railroad industry for derailing and therefore effectively stopping trains or unattended rolling stocks which rolls over said derail. The lock extension device comprises a locking device allowing an individual to lock said lock extension device to a derail while standing in an upright position, thereby diminishing injuries that may occur with prior art locking devices that are at ground level. | 10-15-2009 |
| 20100051757 | LOW PROFILE DERAIL - This invention relates to a derail assembly used in the railroad industry for derailing the wheel of an undesirably moving railed vehicle and, in particular, relates to derailing a moving locomotive having a pilot at the front of the locomotive. The derail assembly includes a full rigid derail plate which is in direct contact with the entire upper surface of the rail. An upright derail bar is securely mounted on the derail plate and the derail bar is angled outwardly for engaging a wheel of the locomotive when moving undesirably for causing a desired derailment. The derail includes longitudinally spaced rigid hooks at opposite ends of the derail. The hooks secure one side of the derail assembly to the rail. On the opposite side of the rail, a clamp assembly is provided on the derail shoe from the hooks. The hooks and the clamp cooperate to secure the derail assembly to the rail. The derail has an overall height which is less than three inches measured from the upper surface of the rail to the highest point of the derail assembly so a clearance is always provided between the pilot of the moving locomotive and the highest point of the derail assembly. | 03-04-2010 |
| 20110198448 | LINKAGE ASSEMBLY FOR OPERATIVELY CONNECTING A BLUE FLAG TO A DERAIL - An improved linkage assembly for operatively connecting a derail to a blue flag assembly to cause the blue flag assembly to be raised from a horizontal position between train track rails to a vertical position substantially perpendicular to the train track when the derail is manipulated into an operative mode for derailing a train, train car or similar type wheeled vehicle, and further provided with a stop device to inhibit accidental raising of the blue flag assembly until it is desired to do so. The linkage assembly is constructed having a support plate also mountable on adjacent cross ties, and further includes a blue flag mounting assembly to permit the blue flag signal to pivot between horizontal and vertical positions. The linkage assembly further including a spring loaded tensioning device attached at one end to the blue flag mounting assembly and attached at its opposite end to a cam assembly also mounted on the support plate. The cam assembly is operatively connected to a linkage arm which in turn is connected to the derail whereby the manipulation of the derail from its non-operative position to its operative, derailing position causes the blue flag signal to be pivoted from the horizontal to the vertical position and which locks out any change in the derail position by manipulation of the blue flag signal. | 08-18-2011 |
| 20120097802 | DERAIL ASSEMBLY - This invention relates to a derail assembly used in the railroad industry for derailing a wheel of an undesirably moving railed vehicle. The invention particularly relates to derailing a moving locomotive having a pilot at the front of the locomotive. The derail may be a single ended derail or a double ended derail. The derail includes a rigid derail plate which is in direct contact with the upper surface of the rail. An upright derail bar is securely mounted on the derail plate and the derail bar is angled outwardly for engaging a wheel of the locomotive or other railway car when moving undesirably for causing a desired derailment. The second derail bar may be provided in the case of a double ended derail. The derail includes longitudinally spaced rigid hooks at opposite ends of the derail to secure one side of the derail to the rail. The opposite side has a clamp mounted on the derail for securing the derail to the rail. A pair of rigid upright members are longitudinally spaced from each other on the underside of the derail plate. An open space is provided between the upright rigid members. A railroad tie is snugly received between the spaced upright rigid members to longitudinally secure the derail against longitudinal movement caused by an undesirably moving railway car or a locomotive. | 04-26-2012 |
| 20140138494 | METHOD & APPARATUS FOR AN INTERLOCKING CONTROL DEVICE - A distributed interlocking device, architecture and process are disclosed, and are based on segregating the vital logic for a signal installation by type of signal equipment. A plurality of intelligent signal devices is disclosed, wherein each intelligent signal device is used to control a basic signal unit. In turn, a signal unit includes a set of signal apparatuses that are geographically and logically interrelated. An intelligent signal device receives data related to the states of other signal devices, determines and controls its own operational states, and communicates its own operational states to other devices. | 05-22-2014 |
| 246393000 |
SWITCH STANDS | 5 |
| 20100025546 | Modular Railroad Switch Stand - A switch stand for a railroad switch permits the switch to be locked against unauthorized movement of the switch. The switch stand permits trailing operation, even if locked. Passage of the rolling stock through the locked switch is permitted by allowing temporary movement of switch points of the switch when contacted by wheels of the rolling stock. The switch stand can also be unlocked and the position of the switch points changed manually to an alternate position from the normal or set position and then locked against unauthorized movement of the switch. | 02-04-2010 |
| 20100270436 | ADJUSTMENT DEVICE IN RAILROAD SWITCHES - The invention relates to a device for shifting switch rails ( | 10-28-2010 |
| 20120286104 | HAND THROW MECHANISM FOR IN-TIE SWITCH MACHINE - A hand throw mechanism for an in-tie switch machine having a drive element which serves to move switch points from a first end point to a second end point. The mechanism includes an elongated hand throw arm having a first coupling element that includes a first lower mating surface and a first upper mating surface. The mechanism also includes a gear set having an output shaft for moving the drive element. The gear set additionally includes a second coupling element having a second lower mating surface for engaging the first upper mating surface and a second upper mating surface for engaging the first lower mating surface to thus couple the first and second coupling elements. Rotation of the hand throw arm through an angle of approximately 180 degrees then causes rotation of the output shaft to thus move the driving element and ultimately the switch points. The mechanism also includes a thrust element having a raised portion wherein rotation of the thrust element urges the raised portion against the first coupling element to separate the first and second coupling elements and disengage the throw arm. | 11-15-2012 |
| 20100072326 | INTEGRATED LOCKING CONTROL AND STATUS INDICATOR FOR MANUALLY OPERATED RAILWAY SWITCH STAND - The invention relates to a device to be integrated with to a manual switch stand, particularly for use in dark territory. The device secures the spindle of the switch stand against rotation, thereby preventing authorized throwing of the switches. The device also contains sensors that will clearly indicate to an external observer both the position of the switch points and the locked or unlocked status of the switch stand. A particular sequence of steps must be taken before an operator will be able to unlock the switch stand and throw the switch, and further steps are required before he can secure the switch stand and remove his key. The switch stand must therefore be left in a locked state, and it continuously indicates the status of the switch stand to a remote monitor. | 03-25-2010 |
| 20110155864 | DEVICE FOR FIXING A SWITCH SETTING DEVICE ON STOCK RAILS OF A RAIL SWITCH - In a device for fixing a switch setting device ( | 06-30-2011 |
| 246270000 |
VEHICLE-ENERGY ACTUATION | 4 |
| 20110095139 | METHOD AND APPARATUS FOR BI-DIRECTIONAL DOWNSTREAM ADJACENT CROSSING SIGNALING - First and second crossing predictors communicate with each other, and each predictor transmits signals to instruct downstream adjacent predictors to activate their warning devices at a constant warning time (referred to as DAXing) by using train detection information from the other predictor. The communications between the predictors may be rail based, wireless or wired using conductors other than rails. Multiple predictors may be present between the first and second crossing predictors, and each such predictor may be DAXed by one of the outer predictors based on the train's direction. The predictor also transmits a signal to inform the other predictor of the presence of the train so that the other predictor may determine whether to suppress DAXing. Also disclosed is a method for detecting an incoming train direction at a predictor by utilizing a second receiver attached to the track rails at a location offset from the first receiver. | 04-28-2011 |
| 20130313373 | APPARATUS FOR BI-DIRECTIONAL DOWNSTREAM ADJACENT CROSSING SIGNALING - First and second crossing predictors communicate with each other, and each predictor transmits signals to instruct downstream adjacent predictors to activate their warning devices at a constant warning time (referred to as DAXing) by using train detection information from the other predictor. The communications between the predictors may be rail based, wireless or wired using conductors other than rails. Multiple predictors may be present between the first and second crossing predictors, and each such predictor may be DAXed by one of the outer predictors based on the train's direction. The predictor also transmits a signal to inform the other predictor of the presence of the train so that the other predictor may determine whether to suppress DAXing. Detecting an incoming train direction at a predictor by utilizing a second receiver attached to the track rails at a location offset from the first receiver. | 11-28-2013 |
| 20160101793 | APPARATUS FOR BI-DIRECTIONAL DOWNSTREAM ADJACENT CROSSING SIGNALING - A first crossing predictor uses signals from a pair to spaced apart receivers, which may be located on opposite sides of a transmitter, to determine on which side of a crossing an approaching train is located. If the first predictor upstream with respect to the approaching train, the first predictor transmits signals to instruct a downstream adjacent predictor to activate its warning device at a constant warning time (referred to as DAXing). | 04-14-2016 |
| 20080290223 | Railroad switch stand having flood protection structure - A flood protection structure for supporting a switch stand comprises a flood protection base, and at least one flood protection prop upstanding from the flood protection base. The flood protection prop is sufficient to extend above a level of expected standing water. The flood protection structure further comprises an interface mounted over the at least one flood protection prop for attachment to a base of the switch stand. | 11-27-2008 |
| 246382000 |
SWITCH-CONNECTED FROGS | 2 |
| 20160010286 | MANUFACTURING METHOD OF PRODUCING FROG AND CROSSING ASSEMBLIES FOR OVERHEAD CONTACT SYSTEMS | 01-14-2016 |
| 20090020655 | MACHINE FOR RAILWAY SWITCHING - An in-tie machine for moving the movable elements of a switching device, such as the switch points of a switch point assembly or the moving V-point of a movable point frog, with a sliding device which selectively engages a control rod with either a fixed seat or a moving seat, to shift the movable elements and lock them in place. | 01-22-2009 |
| 246166100 |
SIGNALLING BETWEEN OCCUPANTS OF A TRAIN | 2 |
| 20150291190 | TRAIN COMMUNICATION NETWORK - An access point for a communication network is disclosed. The access point may have a communications processor configured to receive incoming signals from a different access point of the communication network, and to generate outgoing signals directed to the different access point based on a plurality of amplitude scale factor maps stored in memory. The access point may also have a cable connected between the communications processor and the different access point, and a transmission amplifier connected to the cable downstream of the communications processor. The transmission amplifier may be configured to amplify the outgoing signals. | 10-15-2015 |
| 20150291191 | TRAIN COMMUNICATION NETWORK - An access point for a communication network is disclosed. The access point may have a communications processor configured to receive signals from a different access point of the communication network, a cable connected to the communications processor, and at least one attenuator connected to the cable upstream of the communications processor. The at least one attenuator may be configured to selectively attenuate incoming signals received via the cable before the incoming signals are received by the communications process. The access point may also have a transmission amplifier connected to the cable downstream of the communications processor and configured to amplify outgoing signals generated by the communications processor by about 3:1. | 10-15-2015 |
| 246108000 |
TIME INDICATION, AUTOMATIC | 1 |
| 20120001029 | TRAIN INFORMATION DISPLAY SYSTEM AND TRAIN INFORMATION DISPLAY DEVICE - In a train information display system that displays an operation information on each train in a train, a ground system adds the information on the degree of influence on the passengers of each train to the operation information, and transmits the resultant operation information to a transmission-reception device. A content data server stores in advance, as normal-time display information, at least one of advertisement information and destination guidance information that are to be displayed during normal operations. Instruction output devices instruct content display units to display the operation information and normal-time display information in a display sequence corresponding to the influence information received by the transmission-reception device. | 01-05-2012 |
| 246375000 |
CONTINUOUS-RAIL CROSSING | 1 |
| 20160083912 | RAIL CROSSING DESIGNED FOR CROSSING A GUIDE RAIL WITH A SECOND RAIL - The invention concerns a rail crossing device designed for crossing a first rail embedded in a road surface with a guide rail, embedded in the road surface. It comprises at least one extensible portion provided in the guide rail and at least one mechanism designed for lengthwise extension and contraction of the extensible portion. This mechanism is designed to extend and contract the extensible portion in a lengthwise direction, defining a contracted position in which one end of the guide rail is separated from the first rail to allow a vehicle or any other movable device to travel along this rail, and an extended position in which said end of the guide rail is moved towards the first rail in order to guide a vehicle onto the guide rail. | 03-24-2016 |
