Filter apparatus for fast food kitchens exhaust

Details Filter apparatus for fast food kitchens exhaust Filter apparatus for fast food kitchens exhaust

1976-07-12

1978-04-18

Nozick, Bernard

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55272, 55467, 55509, 55DIG25, 55DIG36, 126299D, 126299E, B01D 4604

Patent

active

040849473

ABSTRACT:
A method of removing aerosol particles as well as larger particles from the emissions of kitchens of restaurants, particularly those used in the fast food industry, comprising collecting the smoke and other gases rising from the kitchen cooking area and passing the smoke and other gases containing aerosol size liquid and solid particles through a coalescing filter which coalesces and removes from the air stream the aerosol particles of 3 microns and smaller as well as particles of larger size. The apparatus includes a hood positioned above the cooking area of a kitchen, a ventilation duct connected to the hood for conveying gases collected by the hood to the atmosphere outside of the kitchen, an aerosol particle coalescing filter enclosed within the ventilation duct, a blower connected with the ventilation duct for drawing gases from the hood through the duct and filter and for discharging the gases into the atmosphere outside of the kitchen. Additionally an automatic filter washer is provided to wash the coalescing filter at selected intervals.

REFERENCES:
patent: RE18328 (1932-01-01), Fedeler
patent: 1548288 (1925-08-01), Smith
patent: 1935813 (1933-11-01), Neveu
patent: 2794514 (1957-06-01), Risley
patent: 2970671 (1961-02-01), Warner
patent: 3242652 (1966-03-01), Malenchini
patent: 3540190 (1970-11-01), Brink, Jr.
patent: 3812657 (1974-05-01), Lampinen
patent: 3891417 (1975-06-01), Wade

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