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US Patent 7413024 Self-closing vent assembly

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Is a
Patent
Patent
0

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
74130240
Patent Inventor Names
Steve Beck0
John Simontacchi0
Ronald J. Loar0
Date of Patent
August 19, 2008
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Patent Application Number
117261730
Date Filed
March 19, 2007
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Patent Citations Received
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US Patent 12104384 Ember and flame resistant resettable automatic soffit vent
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US Patent 11773587 Two-piece track system
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US Patent 11802404 Fire-rated wall and ceiling system
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US Patent 11866943 Ember and flame resistant resettable automatic soffit vent
0
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US Patent 11885133 Soffit vent
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Patent Primary Examiner
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Darren W Gorman
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Patent abstract

A self-closing vent has its frame and a honeycomb screen coated with an intumescent material. When affixed to a wall with an opening the vent is normally open, allowing free flow of air through the opening, but when exposed to the heat of a fire, the intumescent material expands to close the vent, thereby preventing spread of the fire through the opening. The intumescent material preferably is FireFree 88, in a coating thickness of about 5 to 15 mils. In one preferred embodiment the vent opening is in a vehicle, between an engine compartment and a passenger space.

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