Stoves and furnaces – Stove hoods
Patent
1991-07-24
1993-04-27
Jones, Larry
Stoves and furnaces
Stove hoods
126299D, 454 67, F24C 1520
Patent
active
052052796
ABSTRACT:
A kitchen ventilator is mounted in the wall behind the cooking units and has a horizontally extending intake slot located close to the cooking surface. A roof-mounted upblast fan is coupled through connecting duct to the ventilator to establish a vacuum in the system. Room air travels over the cooking surface into the slot and is baffled down toward the bottom of the ventilator and then turned 180 degrees around the bottom edge of the baffle to centrifugally remove some contaminants. The air moves upward to the top of the baffle and is drawn through baffle-style filters where additional contaminants are removed. The baffle is removable to facilitate cleaning. Clean-out doors in the front face of the ventilator above the intake slot give easy access to the filters for removal and cleaning or replacement of them. A funnel around and under the fan assembly takes rain and snow from the fan assembly and drains it through the connecting duct and ventilator to sewer.
REFERENCES:
patent: 2577150 (1951-12-01), Plendger
patent: 2868108 (1959-01-01), Petersen
patent: 3500740 (1970-03-01), Aubrey
patent: 3513766 (1970-05-01), Ahlrich
patent: 3785124 (1974-01-01), Gaylord
patent: 3854388 (1974-12-01), King
patent: 4089327 (1978-05-01), Welsh
patent: 4153044 (1979-05-01), Nett
patent: 4506655 (1985-03-01), Kuechler
patent: 5069197 (1991-12-01), Wisting
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