Wall thimble with outside air inlet

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8056552
SERIAL NO

12544993

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A wall thimble for use with a heating appliance. Dual functionality is provided in a single wall thimble device by having a vent path for exhausting combustion by-products, and a separate air inlet path to draw in outside combustion air for use by the heating appliance. The wall thimble is formed as a two-part housing such that a first portion can be inserted into a second portion. When an exhaust pipe is routed through end plates on the housing portions, a closed region is formed between the exhaust pipe and the housing portions. A first air vent is formed in the first or outside portion to draw combustion air into the closed region from outside. A second air vent is formed in the second or inside portion to route the combustion air from the closed region to an opening in the housing where a combustion air inlet pipe is connected.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DURAVENT INCGRAND PARK CENTRE BUILDING 28 WEST ADAMS SUITE 1810 DETROIT MI 48226

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adair, Eric Dixon, US 11 62
Jacklich, John R Napa, US 13 122

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