Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7082707 | Support truss for a messaging sign A support truss for a messaging sign comprising an elevated box truss which extends over a roadway and which has its opposite ends secured to upstanding supports. The box truss is comprised of a plurality of box truss sections secured to one another in an end-to-end... | 08/01/2006 |
| 7069680 | Barrier or wall mounting apparatus There is disclosed a mounting apparatus which comprises a vertically extending rigid member having an upper end, a lower end and an intermediate portion, a clamping arm member having a generally horizontal arm have an end and a generally vertical arm having an end, ... | 07/04/2006 |
| 7032865 | Railway indicator device and method A railway indicator device is provided for indicating a condition associated with a particular section of track of a railway. The device includes a post supported in the ground adjacent the railway track which pivotally supports a swing arm thereon for movement betw... | 04/25/2006 |
| 6565046 | Method of detecting obstacles on railroad lines A method and system of detecting obstacles on railroad lines. Sensors for observing the railroad line are arranged along the railroad line, and automatic evaluation takes place. One advantage of the invention is that the railroad lines are divided into gi... | 05/20/2003 |
| 6471162 | Railroad maintenance-of-way personnel warning system apparatus and method therefor A railroad maintenance-of-way personnel warning system and method therefor provides advanced detecting and warning of oncoming trains encroaching the construction area. Magnetometer sensors detect an oncoming train whereby a warning signal is transmitted ... | 10/29/2002 |
| 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 |
| 6386492 | Temporary sign holder A temporary sign holder utilizes a clamping member attachable to a rail to support a sign post in an operative location. The clamping member is formed with two hooked shaped members that are tightened around the base of the rail from opposing sides. One o... | 05/14/2002 |
| 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 |
| 6113037 | Railroad maintenance-of-way personnel warning system apparatus and method therefor 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 t... | 09/05/2000 |
| 5924651 | Tactile and audible warning system for railroad workers A train warning system and method for warning personnel in proximity to railroad tracks of an approaching train includes a train sensor operable with the railroad tracks for detecting passage of a train over the railroad tracks at a given location. The tr... | 07/20/1999 |
| 5905216 | Track flag holder A track flag holder is disclosed for attachment to a railroad track in order to support flags designed to alert train operators. The track flag holder includes an adjustable clamp assembly, a flag assembly, and a flag. The adjustable clamp assembly includ... | 05/18/1999 |
| 5791605 | Railroad signaling method and apparatus A railroad signaling device for conveying information to a train engineer comprises a pylon adapted to be secured to a cross tie of the railroad track at a location to be passed over by a train as the train moves down the track. The pylon has front and re... | 08/11/1998 |
| 5305975 | Flagging apparatus and method An apparatus for representing the state of a condition, the condition having a true state and a false state, the apparatus comprising an indicator having a recognizable feature indicative of the true state of the condition, a cover for covering the indica... | 04/26/1994 |
| 5038704 | Stowable temporary signaling device for rail systems The present invention provides a portable, temporary railroad signaling device which may be tenaciously secured onto a railroad rail and its use. The device includes an adjustable and fixed clamping mechanism for clasping onto a railroad rail placed there... | 08/13/1991 |
| 5008967 | Triangular truss walkout cantilever A triangular truss walkout cantilever for displaying railroad warning signals above the individual lanes of a road or highway at a railroad grade crossing is disclosed. The cantilever includes a cantilever arm attached to a vertical roadside mast. The can... | 04/23/1991 |
| 3952978 | Cantilever arm signal assembly 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... | 04/27/1976 |
