Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Application No. | Application Title | Issue Date |
| 20110095139 | METHOD AND APPARATUS FOR BI-DIRECTIONAL DOWNSTREAM ADJACENT CROSSING SIGNALING First and second crossing predictors communicate with each other, and each predictor transmits signals to instruct downstream adjacent predictors to activate their warning devices at a constant warning time (referred to as DAXing) by using train detection information fr... | 04/28/2011 |
| 20080067293 | Method, Computer Software Code, and System for Determining a Train Direction at a Railroad Crossing In a railroad crossing warning system having an electronic transmitter located on a first side of a road crossing connected across both railway rails, a first electronic receiver on the first side of the road crossing connected across both railway rails, a second electr... | 03/20/2008 |
| 20070075193 | Lock bar for railroad gate warning mechanism A lock bar for controlling the position of a railroad warning gate includes an elongated body portion extending between a first end and a second end, a clutch mechanism disposed in the elongated body, the clutch mechanism permitting rotational movement in one direction ... | 04/05/2007 |
| 20060180712 | Advance warning system for railroad crossing An early warning system warns a motorist that a train is near a railway crossing that is being approached by the motorist. The early warning system utilizes magnetometers that are placed along a railway at locations corresponding to the locations at which existing elect... | 08/17/2006 |
| 20060119489 | Communication system for vehicle, vehicle, and communication device for vehicle The present invention is directed to vehicle communication equipment capable of transferring information using light without adding new light emitting means, and further, between a stationary apparatus and a vehicle or between vehicles. A light emitted from a signal lam... | 06/08/2006 |
