Low-profile ventilation hood
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United States of America Patent
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Nov 23, 2004
Grant Date -
Oct 9, 2003
app pub date -
Apr 3, 2002
filing date -
Apr 3, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a method, apparatus and system for safely and efficiently evacuating a ventilation hood having at least one blower unit disposed within a hood. The present invention incorporates an upper plenum frame having an opening in the bottom thereof. A squirrel cage fan is disposed about the opening to draw air down through the upper plenum frame, through a lower plenum, and out an exhaust duct connected to the lower plenum. In certain embodiments, the squirrel cage fan is driven at a speed appropriate to liquefy grease suspended in the heated air.
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