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US 7,581,539 B2Granted
Baffle-type grease filters for kitchen ventilators
AssigneeFranklin Machine Products
InventorJosue V. Aviles
Life of this patent
Estimating the term…
Abstract
A grease filter has upper and lower baffle assemblies that define tortuous paths for exhaust air flowing therethrough. The baffles in the upper assembly include a perforated metal strips and bent free edges to maximize grease extraction from the exhaust air. A hinge connects the upper and lower baffle assemblies and permits the assemblies to pivot from a closed position to an open position. In the open position, access is provided to all surfaces of the assemblies so that they can be efficiently cleaned.
Claims18
A grease filter, comprising:
- a lower baffle assembly including an array of elongate, metal, laterally-spaced, upwardly-opening, gutter-shaped baffles;
- an upper baffle assembly opposed to said lower baffle assembly, said upper baffle assembly including an array of elongate, metal, laterally-spaced, downwardly-opening, gutter-shaped baffles;
- and
- an elongate perforated metal strip extending within each of said downwardly-opening, gutter-shaped baffles of said upper baffle assembly;
- said baffles in said lower and upper assemblies being offset relative to each other to define tortuous paths for exhaust air passing through the filter and to eliminate any straight line paths through said lower and upper baffle assemblies;
- each of said baffles of said lower baffle assembly having an elongate base wall with opposite upwardly extending sidewalls defining a channel;
- and
- said sidewalls of said baffles in said lower baffle assembly having a plurality of apertures.
5 more elements
A kitchen ventilating system, comprising:
- food preparation apparatus selected from a group consisting of a grill, a broiler, a range and a stove;
- a canopy located above said apparatus for exhausting air rising upwardly from said apparatus and laden with grease or oil vapors;
- and
- at least one grease filter removably mounted within a mouth of said canopy;
- said grease filter having opposed upper and lower baffle assemblies defining tortuous paths through which the exhaust must pass;
- said lower baffle assembly having an array of elongate, metal, laterally-spaced, upwardly-opening, gutter-shaped baffles, and said upper baffle assembly having an array of elongate, metal, laterally-spaced, downwardly-opening, gutter-shaped baffles;
- said baffles in said lower and upper baffle assemblies being offset relative to each other to define said tortuous paths and to eliminate any straight line paths for exhaust air through said lower and upper baffle assemblies;
- each baffle in said upper baffle assembly supporting an elongate perforated metal strip extending therein;
- each baffle of said lower baffle assembly having an elongate base wall with opposite upwardly extending sidewalls defining a channel;
- and
- said sidewalls of said baffles in said lower baffle assembly having a plurality of apertures.
8 more elements
Dependencies are inferred from the claim text.