US 5,205,279 A · Lineal slot ventilation system

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.

Claims20

Dependent claims

In a building having a roof and a kitchen with a floor and a wall and a cooking unit in front of the wall and having a cooking surface in a horizontal plane above the floor, a ventilating system including an intake unit the cooking unit comprising:

a housing including front, rear, top, bottom, left and right end walls for receiving and directing cooking fumes and located behind a vertical plane extending behind the cooking unit;
a horizontally extending slot at the front wall and located immediately above the level of the back of the cooking unit and communicating with the kitchen to receive cooking fumes from the cooking unit;
means for extending the travel distance of cooking fumes from the cooking unit to a grease separator means and including a first baffle having an upper end portion inside the housing behind the front wall at the level of the top of the slot and extending downward below the level of the horizontal plane of the cooking surface to a line near the bottom wall of the housing spaced in front of the rear wall of the housing;
and
said grease separator means extending between the front and rear walls above the baffle.

2 more elements

Dependencies are inferred from the claim text.

Lineal slot ventilation system

Life of this patent

Lineal slot ventilation system

Life of this patent

Abstract

Claims20