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US 11,098,456 B2Granted
Guardrail terminal barrier
AssigneeOhio University
InventorsMuhammad Ali, Sean R. Jenson, Khairul Alam, Hajrudin Pasic
Life of this patent
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Abstract
A force-absorbing barrier 10 includes a plurality of concentric chambers 21, 23, 25 and 27 at least partially filled with fluid 42. The walls 22, 24, 26 and 28 defining the chambers are flexible. Fluid passages 30 in the interior walls 24, 26 and 28 between chambers allow fluid flow between the chambers. The fluid flow from chamber to chamber will absorb energy from the impact a motor vehicle, preventing the vehicle from impacting the terminal of a guardrail.
Claims9
An impact absorbing barrier comprising:
- a first wall and a second wall;
- a first chamber between said first wall and said second wall and a second chamber within said second wall, wherein one of said first chamber and said second chamber is positioned concentrically within the other of said first chamber and said second chamber;
- a fluid in said first chamber and said second chamber and a first fluid passage in said second wall which permits fluid flow from said first chamber into said second chamber;
- whereby compression of said first wall forces said fluid in said first chamber through said first fluid passage into said second chamber, thereby absorbing energy.
1 more element
Dependencies are inferred from the claim text.