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公开(公告)号：US11859350B2
公开(公告)日：2024-01-02
申请号：US18182011
申请日：2023-03-10
发明人： Daniel W. Plonk , Michael E. Vawter , Greg Temple
摘要： Systems, devices, media, and methods are presented for controlling remote equipment in a network. A switch heater control system includes a weather modeling function. The system periodically obtains weather data according to a predetermined time interval. Based on the closest weather data set, the weather modeling function generates a hyperlocal forecast associated with each switch heater location. The system includes an active snowfall mode and a maintenance mode that controls heating based on an estimate of local snow depth, adjusted for wind conditions and passing trains. When the hyperlocal forecast indicates heating is required, the system calculates a melt duration, starts a timer, and transmits a start signal to the switch heater.
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公开(公告)号：US11725347B2
公开(公告)日：2023-08-15
申请号：US17111847
申请日：2020-12-04
申请人： Backer EHP Inc.
摘要： An embodiment of a rail switch heating system is disclosed, including a controller comprising a processor and memory, an electrically resistive heating element coupled to the controller, the heating element configured for mounting to and heating a railroad rail, and software stored on the memory for executing the steps of: (a) automatically determining a pulse width modulated (PWM) cycle corresponding to a target energy consumption for cycling the heating element on and off; and (b) cycling the heating element on and off according to the PWM cycle.
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公开(公告)号：US11499271B2
公开(公告)日：2022-11-15
申请号：US16621049
申请日：2018-08-27
发明人： Thomas Bergk , Thomas Christ , Jürgen Hellbach , Torsten Nolte
摘要： A switch device including a switch rail (12), the switch device having at least one stock rail (14), a junction rail (32) and a switch rail support (16), and the switch rail and the connecting rail being interconnected by a weld joint (34). The switch rail support (16) includes a through-opening (36) or a recess beneath the weld joint, the width of the through-opening or the recess being wider than the width of the switch rail (12). Furthermore, the length of the through-opening or the recess allows the junction rail (32) to connect to switch rails of the same or different lengths.
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公开(公告)号：US11091882B2
公开(公告)日：2021-08-17
申请号：US16791318
申请日：2020-02-14
申请人： Daniel W. Plonk , Mike Vawter , Greg Temple
发明人： Daniel W. Plonk , Mike Vawter , Greg Temple
摘要： Systems, devices, media, and methods are presented for controlling remote equipment in a network. A switch heater control system includes a weather modeling function. The system periodically obtains weather data according to a predetermined time interval. Based on the closest weather data set, the weather modeling function generates a hyperlocal forecast associated with each switch heater location. The system includes an active snowfall mode and a maintenance mode that controls heating based on an estimate of local snow depth, adjusted for wind conditions and passing trains. When the hyperlocal forecast indicates heating is required, the system calculates a melt duration, starts a timer, and transmits a start signal to the switch heater.
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公开(公告)号：US20200256024A1
公开(公告)日：2020-08-13
申请号：US16778793
申请日：2020-01-31
申请人： M.C. Dean, Inc.
发明人： Walter Krohn
摘要： A system for remotely controlling third rail ribbon heaters is provided for preventing the accumulation of ice and snow on the rails. The system includes a plurality of switching assemblies that control a flow of electric current from the third rail of a railway to ribbon heaters mounted on the third rail. A remotely located digital controller provides switching commands to the switching assemblies via a radio link. The switching assemblies include current and voltage sensors that continuously provide current and voltage information that allows the digital controller to accurately predict when a heater failure condition is likely to occur so that ribbon heaters may be preemptively and safely replaced before failure. Each of the switching assemblies is contained in a junction box that includes both a door panel and a safety switch that disconnects the switching assembly from third rail current when the door panel is opened for improved safety.
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公开(公告)号：US20180100273A1
公开(公告)日：2018-04-12
申请号：US15559023
申请日：2016-03-16
申请人： VE'RTEX SWEDEN AB
发明人： Bo Johansson
摘要： A railway switch mechanism including first and second switch blades, wherein a switch point of each of the first and the second switch blades is vertically displaceable by means of a displacement mechanism in order to establish a switch movement in the respective switch point, wherein the respective displacement mechanism includes at least one pair of cooperating wedges having a lower wedge and an upper wedge, wherein at least one wedge of the at least one pair of cooperating wedges is arranged to be displaced in a direction substantially parallel to a longitudinal direction of the switch blade or parallel with a longitudinal direction of the switch mechanism, and wherein the switch blades are elastically deformable in the vertical direction or pivotally connected by hinged joints to first and second closure rails respectively for enabling the vertical displacement of the switch blades.
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公开(公告)号：US3349722A
公开(公告)日：1967-10-31
申请号：US41420664
申请日：1964-11-27
发明人： DAVIS GARY W
IPC分类号： E01B7/24
CPC分类号： E01B7/24
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公开(公告)号：US3233097A
公开(公告)日：1966-02-01
申请号：US35015064
申请日：1964-03-05
申请人： RAY WATKINS
发明人： RAY WATKINS
IPC分类号： E01B7/24
CPC分类号： E01B7/24
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