子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Railroad maintenance-of-way personnel warning system apparatus and method therefor | US84863 | 1998-05-26 | US6113037A | 2000-09-05 | Joseph A. Pace |
| A railroad maintenance-of-way personnel warning system and method therefor provides advanced detection and warning of oncoming trains encroaching the construction area. Magnetometer sensors detect an oncoming train whereby a waning signal is transmitted to a receiver unit at the construction zone. Warning alarms including a flashing light and siren horn are thereby activated to indicate the imminent danger such whereupon the construction personnel may take precautionary and evasive action in sufficient time to avoid mishap. | ||||||
| 122 | Railway crossing collision avoidance system | US891809 | 1997-07-14 | US5890682A | 1999-04-06 | James E. Welk |
| With the vehicle anti-collision system of the present invention, road vehicles in the vicinity of a railway crossing are alerted as a train approaches the crossing. A signalling device operating in conjunction with a GPS receiver located in the train emits a signal to a receiver located at the railway crossing to provide an indication of the rail vehicle's location with respect to the railway crossing. The signal is sent continuously at predetermined intervals to provide the railway crossing with sufficient data to estimate the velocity and time of arrival of the train or railway vehicle at the crossing. The railway crossing processes the information and transmits an alarm signal to approaching road vehicles as the rail vehicle approaches the crossing. The signal emitted by the crossing is received at the road vehicle which provides various levels of alarms depending on how close the rail vehicle is to the crossing. The communications between the railroad vehicle and the crossing monitor are preferably by satellite link. A sensor is also preferably provided at the crossing to detect an object on the crossing when the rail vehicle is approaching. | ||||||
| 123 | Railway crossing collision avoidance system | US679902 | 1996-07-15 | US5699986A | 1997-12-23 | James E. Welk |
| With the vehicle anti-collision system of the present invention, road vehicles in the vicinity of a railway crossing are alerted as a train approaches the crossing. A signalling device operating in conjunction with a GPS receiver located in the train emits a signal to a receiver located at the railway crossing to provide an indication of the rail vehicle's location with respect to the railway crossing. The signal is sent continuously at predetermined intervals to provide the railway crossing with sufficient data to estimate the velocity and time of arrival of the train or railway vehicle at the crossing. The railway crossing processes the information and transmits an alarm signal to approaching road vehicles as the rail vehicle approaches the crossing. The signal emitted by the crossing is received at the road vehicle which provides various levels of alarms depending on how close the rail vehicle is to the crossing. | ||||||
| 124 | Railway train signalling system for remotely operating warning devices at crossings and for receiving warning device operational information | US409142 | 1995-03-23 | US5620155A | 1997-04-15 | Jan K. Michalek |
| The present invention provides a signalling system for a railroad locomotive, providing the locomotive with the capability to signal its approach to upcoming railroad crossing signals in order for the crossing signals to activate lights, bells or similar warning devices. The present invention includes a global positioning system receiver mounted within the locomotive for the purpose of determining the train location and, therefore, its proximity to the known locations of railroad crossings. The present invention also includes a self-diagnostic mechanism within the crossing signal device capable of performing certain internal checks for proper functioning of the warning devices. Such information, along with a digitally encoded identification of the particular crossing, is relayed to the locomotive as it passes the crossing. Thus, maintenance information concerning every railroad crossing so equipped is automatically collected on the locomotive-based system for frequent interrogation at service locations, and subsequent crossing-specific maintenance. Also included in the present invention is the capability to signal the approach of a locomotive directly to specially equipped motor vehicles. Further embodiments of the present invention include the capability for a locomotive to signal its position to other locomotives for purposes of collision avoidance. | ||||||
| 125 | Variable placement interchangeable lamp system | US1756187 | 1987-02-24 | US4784356B1 | 1995-01-24 | FOX DAVID K |
| 126 | Variable placement interchangeable lamp system | US17561 | 1987-02-24 | US4784356A | 1988-11-15 | David K. Fox |
| A variable placement lamp system for use with a supporting member is disclosed which includes a plurality of lamp housings (40) each including a channel for receiving an upper edge of a supporting member. Screw (50) on both sides of the housing (40) are turned until the housing is secured to the support member in a friction fit. Extensible cables (70) with 3-pronged connections connect the lamp circuitry to electrical circuitry to operate the lamps (38) in a predetermined pattern. | ||||||
| 127 | Cantilever arm signal assembly | US507356 | 1974-09-19 | US3952978A | 1976-04-27 | Willard O. Reinitz |
| A traffic crossing signal mast for railroad-highway grade crossings incorporates a sturdy cantilever arm extending over the highway and supporting a maintenance catwalk. A short, horizontal jury mast at the end of the cantilever arm is pivotable about its axis parallel to the highway direction through limited angular sectors of one-quarter turn clockwise and counterclockwise. A junction box assembly mounted at each end of the jury mast suspends a pair of warning flasher crossing signal lamps on each side of the catwalk aimed down the highway axis. Pivoting movement of the jury mast from its locked, detent position to a latched quarter-turned position raises one of each pair of signal lamps for initial cable connections, repairs or replacement of flashing lamp heads. A lockable clamping cam lever disengages the detent for jury mast rotation and re-engages it to secure the signal lamps in their aligned position for use. A novel catwalk-and-frame assembly is provided for ease of fabrication, incorporating aluminium chord extrusion frame members with integral concave ledges for supporting catwalk panels of expanded metal or perforated plates. | ||||||
| 128 | Railway signal apparatus | US3444512D | 1966-02-28 | US3444512A | 1969-05-13 | REINITZ WILLARD O |
| 129 | Electronic switching system | US12557261 | 1961-07-20 | US3283206A | 1966-11-01 | UTT ORVAL L; RAPACCHIETTA RICHARD J |
| 130 | Highway crossing warning lamp | US15819861 | 1961-12-11 | US3205478A | 1965-09-07 | SCHEG MARCIAN A |
| 131 | Detector of passing for the railway signalling | US19270362 | 1962-05-07 | US3161387A | 1964-12-15 | JEAN JUTIER |
| 132 | Electronic railway track circuit | US40662754 | 1954-01-28 | US2863993A | 1958-12-09 | HILLIG JOHN E |
| 133 | Target reflector with foldable hood | US6450648 | 1948-12-10 | US2608130A | 1952-08-26 | WELLS WESLEY B |
| 134 | Wayside actuable signal system | US58846445 | 1945-04-16 | US2400740A | 1946-05-21 | CAMPBELL CHESTER W; CHAMBERLAIN BLANCHARD G |
| 135 | Sign | US27013939 | 1939-04-26 | US2242342A | 1941-05-20 | BRUNER REA M |
| 136 | Signal | US11732536 | 1936-12-23 | US2214473A | 1940-09-10 | MANN LEO R |
| 137 | Railway crossing signal | US8974936 | 1936-07-09 | US2203988A | 1940-06-11 | GRISWOLD FRANK W |
| 138 | Railroad crossing and danger signal | US6411036 | 1936-02-15 | US2200739A | 1940-05-14 | CLYDE EVANS |
| 139 | Railroad signal | US75216834 | 1934-11-08 | US2061349A | 1936-11-17 | COLEMAN WILLIAM L |
| 140 | Electric flare signal | US70415233 | 1933-12-27 | US2035841A | 1936-03-31 | SIGNOR WILLIAM E |
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