Automatically closed fire protection louver device
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United States of America Patent
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Nov 11, 2014
Grant Date -
Aug 8, 2013
app pub date -
Oct 10, 2011
filing date -
Oct 20, 2010
priority date (Note) -
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Abstract
The present invention provides an automatically closed fire protection louver device, which is installed on a window or the like in an apartment building without a balcony function or in a curtain wall type building structure to adjust natural lighting and automatically block spread of flames to an upper floor without using electrical energy when a fire breaks out.
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