Communications: electrical – External condition vehicle-mounted indicator or alarm
Reexamination Certificate
2007-09-11
2007-09-11
Lee, Benjamin C. (Department: 2612)
Communications: electrical
External condition vehicle-mounted indicator or alarm
C340S541000
Reexamination Certificate
active
10906800
ABSTRACT:
A hazard mitigation system to detect an object in a highway-railway grade crossing. A structure is provided that includes a fixed foundation and a surface layer that is cushionably placed above the foundation, such that the structure is located between tracks at the crossing. At least one sensor is mounted between the surface layer and the foundation. This sensor senses the weight of the object upon the surface layer and provides a sensor signal representative of that weight. A control unit receives the sensor signal, processes it to determine whether the object represents a potential hazard, and, if so generates a warning signal. The sensor can particularly include a pressure or strain gage, or a fiber optic sensor. When a fiber optic sensor is employed, it can particularly include a fiber Bragg grating.
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Fibera, Inc.
Intellectual Property Law Offices
Lee Benjamin C.
Mehmood Jennifer
Roberts Raymond E.
LandOfFree
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