Hood for cooking areas

Details Hood for cooking areas Hood for cooking areas

1999-07-23

2001-03-20

Lazarus, Ira S. (Department: 3743)

Stoves and furnaces

Stove hoods

C126S29900R, C454S063000, C055SDIG003

Reexamination Certificate

active

06202641

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an improved hood for cooking areas.
It is well-known that it is necessary to install an extractor and/or filtering hood in rooms where cooking is performed.
The hood is in fact meant to absorb and filter odors and grease released together with the food cooking fumes and/or, where present, combustion products.
The hood must in fact be located above the cooking area, which is generally constituted by gas ranges or electric ranges or wood-fired stoves or others, so that the cooking fumes and any combustion products can be conveyed directly toward said hood.
In order to avoid ambiguities, it must be specified that the term “hood” in itself is inappropriate but it is used by the present invention to indicate devices for filtering and/or extracting odors and grease and/or combustion products (hereinafter termed fumes) in accordance with the usage of this term in the field.
Commercially available hoods are substantially constituted by a frame which supports a fan which conveys the fumes produced in the cooking area through a filtering element which usually contains grease filters (of the metallic, labyrinth, condensation and acrylic types) and for eliminating odors (activated-charcoal filters, catalyst filters).
Various hoods are commercially available which substantially differ in terms of their structure and method of installation.
So-called central extractor hoods are available, i.e., of the type which is fixed directly to the wall; chimney hoods, meant to be fixed to a wall; and recessed-mounting hoods, arranged inside a wall-mounted unit of a modular kitchen.
There are also hoods which are installed underneath a wall-mounted kitchen unit and built-in hoods which are fixed in the place of the wall-mounted unit and have a front finish which comprises a door of the same type as the other wall-mounted units of the kitchen.
In any case, an unpleasant drawback is noted due to the fact that part of the cooking fumes and grease enters the gap between the rear face of the hood (or of the wall-mounted unit in which the hood is included) and the wall (rear panel of the piece of furniture).
This drawback causes odors to spread into the environment and accumulates moisture on the wall, causing the deposition of grease and the formation of mold.
SUMMARY OF THE INVENTION
The aim of the present invention is to provide an improved convertible hood (extractor and/or filtering hood) which solves the abovementioned drawback of conventional hoods.
Within the scope of this aim, an important object of the present invention is to provide an improved convertible hood which has a simple constructive configuration and can be adapted to wall-mounted units having different depths.
Another object of the present invention is to provide an improved extractor hood whose cost is fully comparable with that of conventional hoods.
Another important object of the present invention is to provide an improved convertible hood which can be adapted to configurations having gaps of different depths.
Another object of the present invention is to provide an improved convertible hood whose installation requires no particular skill and can be performed in a manner which is substantially equivalent to the installation of conventional hoods.
Another object of the present invention is to provide an improved hood which can be provided as a chimney, recessed-mounting or under-unit model, so long as it is installed adjacent to a wall.
This aim, these objects and others which will become apparent hereinafter are achieved by an improved hood of the type to be mounted against a wall above a cooking area, comprising filtering elements and fan means which are integrated in a supporting frame and are connected to a control device, characterized in that it comprises a depth compensation device which is constituted by a contoured lamina arranged at a portion of the hood that is adjacent to said wall at an adjustable angle, suitable to convey the cooking fumes toward an extractor intake.


REFERENCES:
patent: 4465256 (1984-08-01), Wolbrink et al.
patent: 4738244 (1988-04-01), Welsh
patent: 5154161 (1992-10-01), Rogers et al.
patent: 5320088 (1994-06-01), Nester
patent: 5718219 (1998-02-01), Bouderault
patent: 3417453 (1985-11-01), None
patent: 2-302544 (1990-12-01), None

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