Dual air admittance valve

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11993925
APP PUB NO 20230257977A1
SERIAL NO

18138089

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Embodiments of air admittance valve assembly and plumbing system incorporating the same are provided herein. In some embodiments, a valve assembly comprising a housing, a first valve comprising a first valve sealing member and a first valve seat, and a second valve comprising a second valve sealing member and a second valve seat, and a pipe, an inlet, an outlet, a first zone, a second zone, a third zone, the first and second valve sealing member is closed by gravity and open based upon the pressure differential between the first zone, second zone and third zone.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DI MONTE MICHAEL ANTHONYHIGHLANDS NJ

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Di, Monte Michael Anthony Howell, US 13 31

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