Exhaust hood with forced air injection
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United States of America Patent
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-
Aug 10, 2021
Grant Date -
May 14, 2020
app pub date -
Jan 16, 2020
filing date -
Dec 21, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An exhaust hood includes a housing, which is open towards a bottom face to capture cooking by-products from a cooking appliance positioned below the exhaust hood. The housing has a first wall and a second wall opposite to the first wall. The second wall is at least partly inclined inwardly from the bottom face towards a top face of the housing and has an exhaust vent to extract cooking by-products captured by the housing. The exhaust hood has a fresh air fan and the first wall forms a first duct which has openings located in a row along a lower edge of the first wall adjacent to the bottom face and oriented inside the housing. A side wall extension extends from one side wall and forms a lateral skirt that defines a pass-through window having vertically and horizontally extending faces. The side wall extension forms a side wall duct with openings along the vertically and horizontally extending faces that eject vertical and horizontal air streams orthogonal to one another that coalesce to form a vortex which limit cooking by-products from passing through the pass-through window.
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