Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1997-07-09
2000-02-08
Will, Thomas B.
Road structure, process, or apparatus
Traffic steering device or barrier
404 9, 404 12, E01F 1504
Patent
active
060221682
ABSTRACT:
An apparatus permits guiding barriers resting on a street surface in the form of a track to be laterally shifted. The apparatus is fastened to a vehicle, and is moved along, together with the vehicle, in the longitudinal direction of the guiding barriers. The apparatus includes a guideway which has a curved portion extending behind the vehicle, such that a front portion of the guideway is laterally offset from a trailing portion thereof. The guideway has a generally U-shaped cross-section, upright legs of which guide the sides of the guiding barriers passing therethrough. A blade, disposed at the front end of the guideway, initially moves under the first guiding barrier. The first guiding barrier and the subsequent barriers constituting the track are pushed over the guideway, into a position which is offset laterally to the original position, and placed down again on the surface of the street. When the end of the track which is to be shifted is reached by the moving apparatus, the guiding barriers are pulled over the guideway by the previously shifted portion of the track, which has already been brought into its new resting position on the street surface.
REFERENCES:
patent: 4017200 (1977-04-01), Woods, Jr.
patent: 4142625 (1979-03-01), Bourgeois
patent: 4500225 (1985-02-01), Quittner
patent: 4676688 (1987-06-01), Caradot
patent: 5074101 (1991-12-01), Rewitzer
patent: 5546123 (1996-08-01), Ikeda et al.
Addie Raymond W
Will Thomas B.
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