Assembly for preventing the vehicle passage

Details Assembly for preventing the vehicle passage Assembly for preventing the vehicle passage

2005-04-20

2009-10-20

Hartmann, Gary S (Department: 3671)

Road structure, process, or apparatus

Traffic steering device or barrier

C049S033000, C049S049000

Reexamination Certificate

active

07604430

ABSTRACT:
The assembly of the mobile swing-gate is installed in the channel that is dug across the entire width of the road, and the sides of the excavation are reinforced by wall (5). The created recess is over-bridged by swing-gate (1). One side of swing-gate (1) is connected onto joint (2) that is fixed onto channel wall (5). The opposite side of swing-gate (1) is supported by support grate (3) that by its upper side leans against swing-gate (1) and by its lower side against the corner of wall (5). Steel rope (4) is attached at the upper side of the support grate. By pulling steel rope (4) the support grate (3) eludes bellow swing-gate (1) that remains without support at that side, rotates about joint (2) and falls into the channel, and in such a way a recess is opened in the road.

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patent: 0267343 (1988-05-01), None
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