Dual air admittance valve

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United States of America Patent

PATENT NO 9657468
SERIAL NO

15293315

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Importance

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Abstract

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An apparatus to allow or stop an air flow into an enclosed environment or piping system comprises (a) a housing having an upper flow passage, a middle flow passage, a lower flow passage; (b) a first valve seat; (c) a first valve diaphragm; (d) a second valve seat; and (e) a second valve diaphragm.

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Patent Owner(s)

Patent OwnerAddress
DI MONTE MICHAEL ANTHONY22 IMLAYSTOWN RD CREAM RIDGE NJ 08514

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Di, Monte, Sr Michael Anthony Cream Ridge, US 10 54

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