Exhaust hood with disposable filter assembly and filter-conditio

Details Exhaust hood with disposable filter assembly and filter-conditio Exhaust hood with disposable filter assembly and filter-conditio

1991-05-06

1993-05-18

Jones, Larry

Stoves and furnaces

Stove hoods

126299D, 454 49, 454 67, F24C 1520

Patent

active

052111598

ABSTRACT:
The invention of this application comprises a novel filter assembly including a charcoal filter and a fiberglass filter positioned within a housing. The fiberglass filter comprises a fiberglass mat mounted to a wire structure formed in an accordion-shape so as to increase the surface area of the fiberglass mat. The invention also comprises a novel sensor system for sensing when the grease filter and the filter assembly have been installed, for sensing when the filter assembly is about to require changing and for shutting down the exhaust hood when the assembly requires changing.

REFERENCES:
patent: 3518814 (1970-07-01), Maynard
patent: 3885822 (1975-05-01), Cohen et al.
patent: 4160407 (1979-07-01), Duyn
patent: 4350504 (1982-09-01), Diachuk
patent: 4460332 (1984-07-01), Lawler et al.
patent: 4738244 (1988-04-01), Welsh
patent: 4982605 (1991-01-01), Oram et al.
patent: 5063906 (1991-11-01), Rogers et al.

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