Dual arm fortified barrier assembly
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United States of America Patent
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Nov 21, 2017
Issued Date -
N/A
app pub date -
Mar 9, 2015
filing date -
Sep 21, 2011
priority date (Note) -
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Abstract
A dual arm barrier assembly comprising spaced-apart stanchions and a pair of barrier arms pivotally connected to a first stanchion for movement between closed and open positions. The barrier arms have distal end portions immediately adjacent to and out of engagement with the second stanchion when in the closed position during normal operation and when the vehicle is out of engagement with the barrier arms. The first barrier arm in the closed position is at a height corresponding to vehicle's windshield, and the second barrier arm in the closed position is below the first barrier arm and is at a height corresponding approximately to the vehicle's body or frame. The second stanchion engages the barrier arms only when the vehicle presses against barrier arms, thereby securely retaining the barrier arms in the closed position.
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