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| Number | Title | Issue Date |
| 7301447 | LED turn signal and error detecting method A motor vehicle turn signal and a method for detecting an error in the turn signal are provided. The turn signal comprises a plurality of LEDs arranged in parallel banks and receiving current from a power source. A detector coupled to each of the parallel banks prov... | 11/27/2007 |
| 7207695 | LED lamp with LEDs on a heat conductive post and method of making the LED lamp A lamp, and a method of assembling the lamp, includes a heat sink, a heat conductive post extended longitudinally from the heat sink where the post has longitudinal faces that each has a longitudinally extending slot therein, a metal clad circuit board slid into eac... | 04/24/2007 |
| 6956494 | Signal lamps and apparatus An LED signal lamp comprises at least two separate LED arrays which have separate power feeds and wherein the LEDs of the arrays are positioned with respect to each other such that when lit they provide a composite light signal output and such that when the LEDs of ... | 10/18/2005 |
| 6592080 | Automatic transport system An object of the present invention is to improve the transportation efficiency of an automatic transport system for transporting an article. In order to attain the above object, the automatic transport system of the present invention comprises a front det... | 07/15/2003 |
| 6435459 | LED wayside signal for a railway A wayside signal for a railway includes a plurality of light emitting diodes housed in a housing. The light emitting diodes output indication signals. Further, the light emitting diodes are configured on a first circuit board which is thermally coupled to... | 08/20/2002 |
| 6116546 | Method for producing a railway crossing warning signal This invention, is a PROCESS, for creating a flashing red light at a railroad-highway grade crossing. This PROCESS is accomplished by the use of two units. The first unit houses a light that is capable of casting a very intense beam out ahead of the train... | 09/12/2000 |
| 5791604 | Signal apparatus including improved access capabilities A railroad signal apparatus which includes a releasable joint which facilitates the servicing of railroad signal heads, particularly the servicing of signal lights mounted therein. The apparatus provides a signal head apparatus which is safe to operate an... | 08/11/1998 |
| 5697584 | Railroad searchlight signal with solid state illuminant and aspect indication A railroad searchlight signal for producing light signals of selected colors. The searchlight uses a reflector that has an inner surface of reflective material and a focal point. One or more light emitting diodes are provided at the reflector focal point.... | 12/16/1997 |
| 5664744 | Railway highway crossing signal A railway signal having a housing, in which the housing has an annular ledge thereon. The annular ledge has first and second opposed surfaces. One or more portions of the second ledge surface, preferably cast raised bosses, are machined so as to have a se... | 09/09/1997 |
| 5639047 | Railroad signal with remote light source An apparatus for providing a light signal to a signal unit at an overhead location along a railway signal structure, particularly a cantilever signal structure having a vertical mast and an arm assembly extending therefrom. Signal units may be located alo... | 06/17/1997 |
| 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 |
| 5433166 | Railway light signal A light signal provides fixed focus and the ability to service the device solely from the rear. This light signal comprises a housing having a rear entry for desired maintenance and an immovable front wall, the lens mount containing a lens unit that is re... | 07/18/1995 |
| 4931768 | Multicolor emergency vehicle light A base adapted to be mounted on a vehicle supports a light source for generating a rotating light beam. A dome-shaped lens is positioned on the base over the light source to form an enclosure for the light source. A coating may be located on the top of th... | 06/05/1990 |
| 4754272 | Three aspect signalling device using no moving parts A three color aspect light signalling system that displays one color at a time without producing phantom signals. The apparatus utilizes three sources of collimated white light, a filter and two dichroic mirror/filters are used to produce three colored as... | 06/28/1988 |
| 4723737 | Process and device for transmitting data between vehicles moving over a track For data communication in the form of messages between railways vehicles moving over a same track, short identical emissions at random times by modulating a directional microwave beam whose angular opening is sufficient in the horizontal direction for mai... | 02/09/1988 |
| 4700278 | Molded plastic bracket for lamp receptacle A railway light signal having a pair of lenses carried by a frame member and having a lamp receptacle including a one-piece molded plastic bracket having a flat top surface upon which is mounted a pair of lamp sockets and light bulbs, having a pair of lat... | 10/13/1987 |
| 4654629 | Vehicle marker light A marker light using an array (2) of light emitting diodes (12) in combination with lenses (3) provides a light beam of required intensity, shape and color for railroad applications. The light emitting diodes are arranged in various configurations to form... | 03/31/1987 |
| 4636036 | Multi-color traffic signal The multi-color traffic signal for railways comprises for each one of the three colors a projector unit consisting of a lamp, an optical unit and a chromatic filter. The projector units are connected to an irradiating output optics by means of an optical ... | 01/13/1987 |
| 4283716 | Multi-color traffic signal A multi-color traffic signal in particular for railway line signalling installations, presents for each color a light source comprising a lamp, a collecting optical unit and a fixed chromatic filter. The light sources are connected by means of an optical ... | 08/11/1981 |
