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US 7,017,705 B2Granted
Blast compression wave absorbing device
OwnerVladimir Ponomarev, Iryna Ponomaryovainventors
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OwnerVladimir Ponomarev, Iryna Ponomaryovainventors
Estimating the term…
A blast compression wave absorbing device comprises a container filled with gas or air under pressure below ambient pressure (under vacuum). The device is positioned close to the facility or structure being protected, in atmosphere or under water. When a blast compression wave reaches the device, in accordance with various embodiments of the invention, the container collapses, ruptures, or its interior is being connected to the environment through rupturable diaphragm or fast-actuating valve. The ambient air starts to fill the internals of the container generating a negative pressure wave, which interferes with blast compression wave and produces a resulting pressure wave with reduced pressure and impulse affecting the facility or structure to be protected. The device can be used in a counter-terrorism operations, to protect high-risk facilities (nuclear and military installations, petrochemical plants, embassies), submerged structures, or to protect personnel in tunnels and bunkers from shock waves of fuel-air explosives.
A blast compression wave absorbing device, comprising an airtight container having a wall defining an interior of the container, at least a part of said interior being filled with a gaseous matter having internal pressure below external pressure outside the container, and a means for flow communication between a blast compression wave propagating outside the container and said part of said interior of said container, said means for flow communication being mechanically connected to said wall of said container.
Dependencies are inferred from the claim text.