Road structure – process – or apparatus – Traffic steering device or barrier
Reexamination Certificate
2006-10-24
2008-08-12
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Traffic steering device or barrier
Reexamination Certificate
active
07410321
ABSTRACT:
A mobile work zone protection device includes a front carrier, a barrier beam assembly, and a rear carrier. In one embodiment, the barrier beam assembly includes two sets of telescoping beam structures. Each of these structures can rotate from one side of the device to the other, and thus can be deployed to create a safe work zone for roadway workers on either side of the device. The structure can also be left in the transit position to provide an enclosed safe work zone.
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W. Lynn Beason Engineering Research Associate/Hayes E. Ross, Jr.; Development of a Truck-Mounted Portable Maintenance Barrier; Research Report 262-5; Apr. 1984; 72 pages; Texas.
Transportation Institute; College Station, TX.
Matsuo Jeremy M.
Schiefferly Calvin W.
Wheeler Angela E.
Addie Raymond W
Heisler & Associates
State of California Department of Transportation
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