Removable barrier for protecting tunnels and other structures from flooding and other hazards
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
Jul 29, 2014
filing date -
Jul 30, 2013
priority date (Note) -
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Abstract
A system for preventing fluid from entering a walled structure includes a support structure configured for fixing to at least one surface of the walled structure; and a barrier apparatus attachable and anchorable to the support structure, the barrier apparatus including a fluid retention member configured for intercepting a fluid entering the walled structure, and a collar for holding the fluid retention member against an interior surface of the walled structure, proximate the opening. As fluid enters the barrier apparatus, the pressure increases against the interior surface of the fluid retention member, pressing it against the walled structure. The collar in combination with the fluid retention member to which it is attached acts like a gasket to tighten a seal between the barrier apparatus and the walled structure.
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