Flood protection for underground air vents

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11946376
APP PUB NO 20220268158A1
SERIAL NO

17675002

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An assembly that fits within a ventilation shaft open to atmosphere and leading from underground ventilation ducts such as to subways prevents surface waters from flooding the underground ducts while maintaining the ventilation. The assembly fits in the ventilation shaft and houses a buoyant float in a chamber surrounding a passageway in fluid communication with the ventilation shaft. A grate covers the passageway. An outside wall of the chamber adjacent the ventilation shaft is open at top to atmosphere and allows flooding water into the chamber, buoying the float upward in the chamber, elevating the passageway above the flooding water. The chamber suitably has means for drainage and admission of flush water to flush flood water debris from the chamber through the drainage.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
FLOODBREAK L L C5909 W LOOP SOUTH FREEWAY SUITE 200 BELLAIRE TX 77401

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Waters,, Jr Louis A Bellaire, US 19 108

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