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| Number | Title | Issue Date |
| 7810761 | Decoder for a stationary switch machine A method for controlling a model railroad stationary switch machine comprising sensing whether a train occupies a main track section near a track switch that connects between said main track section and at least two diverging track sections. An automatic switch cont... | 10/12/2010 |
| 7416159 | Method and apparatus for controlling railway switches A wirelessly controlled railroad switch designed for uses in a dark territory. The switch is configured to operate without the use of vital communications links to a central location, or requiring a central dispatching system or requiring a vital processor such that... | 08/26/2008 |
| 7282816 | Manual switch remote controller A manual switch remote controller is adapted for use with a power switch machine to electrically and selectively move switch points of a track switch between a normal position and a reverse position from a remote location in the field. In one preferred embodiment, t... | 10/16/2007 |
| 7191986 | Device for mechanically and electrically checking the switching device of a railway switch machine In a device for checking the operation of devices (4) used to displace movable switch parts (2, 3), in which the movable switch parts (2, 3) are connected with each other by a coupling rod (13), the coupling rod (13) is comprised o... | 03/20/2007 |
| 7147189 | Non-powered trailed switch detector for railroad track switching equipment An apparatus is provided for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit, with means for resetting the apparatus to open the switch only after manual resetting of the point rail. ... | 12/12/2006 |
| 7134632 | Non-powered trailed switch detector for railroad track switching equipment An apparatus for sensing movement of a point rail away from a stock rail by a selected distance, by closing a switch to shunt a track circuit. Manual resetting of the point rail is required to reset the apparatus to open the switch. ... | 11/14/2006 |
| 6663052 | Modular point detector for railroad track signal A modular sensor apparatus for detecting the location of a movable track point includes a primary sensor and a secondary sensor disposed on a sensor mount that is movable with respect to a frame that is mounted on a switch machine. The secondary sensor is... | 12/16/2003 |
| 6585194 | Modular point detector for railroad track switch A modular sensor apparatus for detecting the location of a movable track point includes a primary sensor and a secondary sensor disposed on a sensor mount that is movable with respect to a frame that is mounted on a switch machine. The secondary sensor is... | 07/01/2003 |
| 6427949 | Contactless point detection system for railroad switch A contactless detection system for detecting the movements of the switch points of a railroad switch and stock rail of a railroad switch/point having a transformer for detecting or sensing the position of the switch points, the transformer having a core l... | 08/06/2002 |
| 6149106 | Railroad switch point position indicator A fixed rail mounted railroad switch point indicator is provided, wherein proximity detectors are mounted to the fixed stock rail to sense the position of the switch relative to those stock rails. Preferably, eddy current sensors are used as the proximity... | 11/21/2000 |
| 6062514 | Railway switch circuit controller A railway switch circuit controller has a housing enclosing a laterally movable platform with a first and second target affixed thereupon. A first and second proximity sensor within the housing is positioned to detect the first and second target, respecti... | 05/16/2000 |
| 5806809 | Railroad switch point position sensing system and method A switch point position detecting system and method uses a plurality of proximity detectors positioned proximate the switch point or points of a railroad switch. Additional proximity detectors are placed within a switch machine housing to detect the posit... | 09/15/1998 |
| 5598992 | Railway switch circuit controller A railway switch circuit controller having a housing with a bottom surface and opposed side surfaces. The bottom surface has a raised planar boss provided thereon, in which the raised boss is cast upon the bottom surface and is then machined so as to have... | 02/04/1997 |
| 5451017 | Automatic track switching control apparatus A new and improved automatic track switching control apparatus is provided for a switch assembly in a track layout for a lamp-containing model train. The automatic track switching control apparatus includes a first light sensor assembly which is supported... | 09/19/1995 |
| 5096147 | In-circuit contact monitor An in-circuit contact monitor for providing reliable and safe detection of the position of fail safe, or vital, circuit contacts in railroad signaling and inter-locking control circuits comprises an impedance network arranged in a bridge configuration, a ... | 03/17/1992 |
| 4196287 | Process for the catalytic production of 2-substituted pyridines A process for the catalytic production of a 2-substituted pyridine which comprises reacting a corresponding cyano compound and acetylene in the presence of cobaltocene. Favorable conversion speed, conversion of at least 90 percent, good yield and high sel... | 04/01/1980 |
