| Patents for B61K 9 - Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles (2,428) |
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| 04/21/1993 | CN2130150Y Anti-jam poermanent magnetic sensor |
| 04/20/1993 | US5203089 Railroad vehicle for measuring the geometrical parameters of railroad track |
| 04/13/1993 | US5201483 Process and system for measuring axle and bearing temperatures |
| 04/06/1993 | US5199176 Apparatus for the non-contact measurement of a track gage |
| 03/17/1993 | CN1069942A Power amplication circuit for car shaft temperature measurer |
| 01/26/1993 | US5181327 Loadwidth gauge for railway cars |
| 01/13/1993 | CN1067938A Track checking vehicle |
| 12/30/1992 | EP0520342A1 Measuring vehicle |
| 12/23/1992 | CN2125530U Symmetry balance magnetic sensor |
| 12/17/1992 | DE4117924C1 Vertical and side force components measuring appts. for railway vehicle wheel - achieves simultaneous evaluation using circuits coupled to expansion measuring strips applied to opposite sides of crown of rail |
| 12/09/1992 | CN2124173U Infrared thermal shaft detector for railway |
| 11/11/1992 | CN1066094A Device for measuring distance between prack and fixed point |
| 10/28/1992 | EP0511191A2 System to measure the position of a rail track with respect to a fixed point |
| 10/21/1992 | CN1065431A Damage detection of wheel tread for railway rolling stock |
| 09/30/1992 | CN2117299U Shape remembering temp. alarm for axle of railway vehicle |
| 09/29/1992 | US5150618 Acoustic bearing defect detector |
| 09/22/1992 | US5149025 Detection of overheated railroad wheel and axle components |
| 09/10/1992 | DE4107649A1 Bearing temp. monitor for railway vehicle wheels - is checked by manually switched source of IR radiation simulating slightly or seriously overheated axle bearing |
| 08/20/1992 | WO1992014120A1 Apparatus for the scanning of a profile and use hereof |
| 08/12/1992 | CN2112557U Magnetic head sensor for proofing railwary electric interference |
| 07/30/1992 | CA2035235A1 Preventive inspection unit for tube wheeled containers |
| 07/14/1992 | US5129606 Railway wheel sensors |
| 06/23/1992 | CA1303872C Method and apparatus to contactlessly measure the brake temperatures of passing railroad cars |
| 05/27/1992 | EP0487465A1 An automatic system for the detection of the internal contour of railway tunnels and the like |
| 05/27/1992 | EP0486955A2 Clearance measurement system, video measurement vehicle and improved method of performing clearance measurements |
| 05/20/1992 | CN2104796U Central alarm display for indicating axle temp of passenger train |
| 04/15/1992 | CN1060265A Arrangements for railway frametool |
| 04/04/1992 | CA2052716A1 Machine for monitoring the vertical position of a contact wire of an overhead line |
| 04/01/1992 | EP0478531A1 Device for placing on rails a tool-carrying frame |
| 03/31/1992 | US5100243 Self-calibrating hot wheel detector for railroads |
| 01/29/1992 | EP0467984A1 A plant for track-based detection of the wheel profile of train wheels. |
| 01/09/1992 | WO1992000214A1 Device for detecting defective wheels on rail cars |
| 12/18/1991 | EP0461628A1 Rail vehicle for measuring geometric parameters of the track |
| 11/21/1991 | EP0457752A1 Method of measuring the temperatures of axles and bearings for detection of hot-boxes |
| 11/19/1991 | CA2042842A1 Process for measuring axle and bearing temperatures in order to identify hot wheels |
| 11/18/1991 | CA2042628A1 Limit sensing indicator |
| 10/29/1991 | US5060890 Detection of overheated railroad wheel and axle components |
| 10/15/1991 | CA1290845C On-line acoustic detection of bearing defects |
| 09/25/1991 | CN2085338U Infrared tester for angle of shock for wheel and rail |
| 09/10/1991 | US5046447 Limit sensing indicator |
| 08/08/1991 | WO1991011355A1 A device for the detection of unbalance of railway wheels |
| 05/02/1991 | EP0424570A1 Device for contactless detection of overheated parts on passing railway vehicles |
| 04/23/1991 | US5009014 Railroad rail profile measuring system |
| 04/17/1991 | EP0195055B1 Railhead profile measuring apparatus |
| 01/22/1991 | US4986498 Device for determining the condition of railway switches or railway crossings |
| 01/17/1991 | DE4015086A1 Profile measurement arrangement, esp. for railway vehicle - has IR transmitters, receivers forming length measurement devices vertically movable on gate posts |
| 12/04/1990 | US4974797 Hot bearing simulator |
| 11/21/1990 | CN1010471B Closed circuit type train stalling detector |
| 11/20/1990 | CA1276703C Method for detecting profile defects on flanged steel wheels using microwave frequency resonator cavities |
| 11/08/1990 | DE3914830A1 Measuring railway track width - involves equipment mounted on torsionally stiff frame fixed to rail vehicle |
| 11/01/1990 | WO1990012720A1 A plant for track-based detection of the wheel profile of train wheels |
| 10/31/1990 | CN2064733U Railway passenger train axle temp. centralized alarm device |
| 10/10/1990 | CN2063496U 列车车轮传感器 Train wheel sensor |
| 10/02/1990 | US4960251 Determining a reference in a method of detecting overheating of bearings |
| 09/26/1990 | CN2062704U Infrared discriminator for train bearings rolling and sliding |
| 08/22/1990 | EP0383477A1 Railway rail profile measuring apparatus |
| 08/07/1990 | CA2007772A1 Railroad rail profile measuring system |
| 07/25/1990 | EP0378781A1 Method and device for the contactless measurement of the deformation and wear of railroad tracks; method for the measurement of the gauge on railroad tracks |
| 07/10/1990 | CA1271325A1 Apparatus and method for measuring the wear of railroad rail |
| 07/04/1990 | EP0375677A1 Apparatus for track-based detection of the wheel profile of passing railway wheels |
| 07/03/1990 | CA1271242A1 System for detecting wheel-damage |
| 06/26/1990 | US4936529 Device for detecting defective wheels on rail cars |
| 06/12/1990 | US4932784 Apparatus for track-based detection of the wheel profile of passing railway wheels |
| 05/29/1990 | US4928910 Detection of overheated railroad wheel and axle components |
| 05/22/1990 | CA1269436A1 Mobile machine for measuring track parameters |
| 03/21/1990 | CN1007228B Method and apparatus for measuring reactions of railway vehicles in route, in particular for qualifying state of railroad line |
| 02/20/1990 | CA1265933A1 Grinding wheel advancing apparatus |
| 01/09/1990 | CA1264224A1 Railhead profile measuring apparatus |
| 12/13/1989 | CN2049204U Automatic goods train stop device for axle overtemperature |
| 11/29/1989 | EP0344145A1 Device for detecting the condition of rail switches or crossings |
| 11/29/1989 | EP0343464A1 Rail vehicle with independent wheels |
| 11/14/1989 | US4880190 Locomotive curve tracking system |
| 11/07/1989 | US4878761 Device for detecting excessively heated wheel bearings and/or wheel tires |
| 11/07/1989 | US4878437 Hot bearing simulator |
| 09/06/1989 | CN2043955U Warner for locomotive wheel band |
| 09/06/1989 | CN2043954U Railway locomotive and carriage circumscribing gauge |
| 08/30/1989 | EP0329918A1 Method for the restoration of a railroad track |
| 08/01/1989 | US4853541 Device for detecting the spatial orientation of excessively heated points |
| 07/18/1989 | US4848873 Shutter adapted to self lock in closed and open positions |
| 07/04/1989 | US4843885 Acoustic detection of bearing defects |
| 06/28/1989 | CN2040061U Wheel-rim measuring device |
| 05/17/1989 | EP0227661B1 Method and device for detecting wheels with deformed treads in railroad vehicles |
| 04/11/1989 | US4820057 Method and apparatus to contactlessly measure the brake temperatures of passing railroad cars |
| 04/04/1989 | US4818119 Hot bearing warning bolt |
| 03/21/1989 | CA1251402A1 Parenteral formulation of dezocine |
| 03/14/1989 | US4812826 Thermal sensor for detection of railroad bearing failures |
| 02/28/1989 | CA1250652A1 Automatic railroad catenary pole localisation device used to detect railroad track defects |
| 02/21/1989 | US4805854 Gate circuitry for hot box detectors |
| 02/08/1989 | CN2032165U Automatic alarm for over temp. of railway carriage axle |
| 02/07/1989 | US4802285 Method and apparatus for ascertaining the radial location of a new wheel profile to be produced by a reprofiling operation |
| 01/18/1989 | CN2030962U Antizamming constant-output permanent magnetic sensor |
| 01/18/1989 | CN2030961U Alarm for coach axles temperature |
| 12/27/1988 | US4793577 Locomotive curve tracking system |
| 12/13/1988 | US4790190 On-line acoustic detection of bearing defects |
| 11/23/1988 | CN88200806U Magnetic detector for drawing string |
| 11/09/1988 | CN88202326U Coupled tester for edge tread of wheel |
| 11/01/1988 | US4781060 System for detecting wheel-damage |
| 10/26/1988 | EP0288155A2 Thermal sensor for detection of railroad bearing failures |
| 10/19/1988 | CN88203203U Universal signal detector of locomotive |
| 10/11/1988 | CA1242875A1 Apparatus and method for measuring the wear of railroad rail |