# US 2024/0200788 A1 · Extractor hood for hobs with an air sanitising chamber

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- Number: US 2024/0200788 A1
- Document ID: US20240200788A1
- Status: Published application
- Kind: A1
- Application number: 18/558,232
- Filed: 2022-05-04
- Published: 2024-06-20
- Earliest claimed: 2021-05-07
- Assignees: Faber S.p.A.
- Applicants: Faber S.p.A.
- Inventors: Ermanno VANTAGGI; Alberto GASPARINI
- Web page: https://patentgrep.com/patent/US20240200788A1

## CPC

- F24C 15/2035: {Arrangement or mounting of filters (F24C15/2021 takes precedence; filters per se B01D46/00)}
- F24C 15/205: {with means for oxidation of cooking fumes}
- A61L 9/20: Ultraviolet radiation
- A61L 2209/12: Lighting means
- A61L 2209/14: Filtering means
- F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

An extractor hood (1) for a hob of the type to be fitted above a hob in a kitchen, and including a first part or extractor part (3) in the vicinity of this hob, which part is connected to a second part or flue (4) having an extractor unit (5) which is connected to an exhaust for vapour extracted from said hob. A sanitising chamber (20) is provided into which air is extracted directly from the kitchen, and includes an extractor unit (21) and a source of radiation (22) which can sterilise this air extracted before it exits from this sanitising chamber (20).

## Claims

### Claim 1

An extractor hood (1) for extracting vapour from a hob, said hood (1) adapted for being fitted above the hob and comprising:
a first part or extractor part (3) which is associated with a second part or flue (4) comprising an extractor unit or fan (5) which is connected to at least one exhaust aperture (8) for extracting the vapour;
a sanitising chamber (20) which treats air collected from an environment where the extractor hood (1) is placed, said sanitising chamber (20) comprising an extractor unit (21) to collect the air from the environment, and a source of UV radiation (22) to sanitise the air, said sanitising chamber (20) comprising at least one exhaust aperture (23) to discharge the sanitised air.

### Claim 2 (depends on 1)

The extractor hood (1) according to claim 1, wherein said sanitising chamber (20) comprises a box-shaped body (32) having an inner cavity (33) which is delimited by a frontal portion (35), lateral walls (36), and a shoulder or rear portion (37), the frontal portion having an aperture (41) defined therein which permits entry of the air into the box-shaped body (32), and the at least one exhaust aperture (23) being provided on a different side or portion of said box-shaped body (33).

### Claim 3 (depends on 1)

The extractor hood (1) according to claim 1, further comprising a filter (54) for the air at said exhaust aperture (23).

### Claim 4 (depends on 1)

The extractor hood (1) according to claim 1, wherein the extractor unit (21) of the sanitising chamber is an electric fan (43), and the source of UV radiation comprises ultraviolet LED sources or at least one ultraviolet lamp.

### Claim 5 (depends on 4)

The extractor hood (1) according to claim 4, wherein the lamp or the LED sources emit UVC radiation with wavelengths in a range of 200 and 285 nm.

### Claim 6 (depends on 4)

The extractor hood (1) according to claim 4, the source of ultraviolet radiation comprises LEDs which emit UVA radiation with wavelengths in a range of 315 and 415 nm or UVB radiation with wavelengths in a range of 285 and 315 nm.

### Claim 7 (depends on 1)

The extractor hood (1) according to claim 1, wherein the source of UV radiation comprises at least one LED lamp (22A, 22B) or LED bars (22C, 22D, 22E, 22F, 22G).

### Claim 8 (depends on 3)

The extractor hood (1) according to claim 3, wherein said filter (54) comprises a part (54B) which faces the LED bars.

### Claim 9 (depends on 2)

The extractor hood (1) according to claim 2, wherein said inner cavity (33) has a divider (46) which subdivides said inner cavity (33) into an extractor space (48) comprising the extractor unit (21) and a sanitising space (49) where the source of UV radiation (22) is located, said divider (46) having an aperture (47) which provides fluid communication between said spaces (48, 49).

### Claim 10 (depends on 2)

The extractor hood (1) according to claim 2, wherein the walls of the inner cavity (33) have a mirror finish.

### Claim 11 (depends on 2)

The extractor hood (1) according to claim 2, further comprising a grid (42) over the aperture (41), or the aperture (41) is defined by a plurality of holes (42K) provided inside the frontal portion (35) of the box-shaped body (32) of the sanitising chamber.

### Claim 12 (depends on 1)

The extractor hood (1) according to claim 1, wherein the sanitising chamber (20) is associated with one of the first or second parts (3, 4).

### Claim 13 (depends on 12)

The extractor hood (1) according to claim 12, wherein said sanitising chamber (20) is secured on the second part or flue (4).

### Claim 14 (depends on 1)

The extractor hood (1) according to claim 1, wherein the sanitising chamber (20) is placed inside or integrated with the second part or flue (4).

### Claim 15 (depends on 1)

The extractor hood (1) according to claim 1, wherein the sanitising chamber (20) is placed transversely to the second part or flue (4) of the extractor hood, and an aperture for entry of the air into the sanitising chamber (20) and the at least on exhaust aperture (23) of the sanitising chamber (20) are placed in opposite sides (75, 76) of the sanitising chamber (20), such that the air treated moves orthogonally to the exhaust for the vapour extracted by the extractor hood (1).

### Claim 16 (depends on 1)

The extractor hood (1) according to claim 1, wherein the sanitising chamber (20) is placed transversely to the second part or flue (4) of the extractor hood, such that the air treated moves orthogonally to the exhaust for the vapour extracted by the extractor hood (1), and an aperture for entry of the air into the sanitising chamber (20) and the at least one exhaust aperture (23) of the sanitising chamber (20) are placed on opposite sides with respect to the flue (4).

### Claim 17 (depends on 15)

The extractor hood (1) according to claim 15, wherein the sanitising chamber (20) is placed on an upper side (3a) of the first part (3), said upper side (3a) facing away from said hob in an installed state of the extractor hood (1).

### Claim 18 (depends on 17)

The extractor hood (1) according to claim 17, wherein the aperture (41) for entry of the air into the sanitising chamber (20) and the at least one exhaust aperture (23) of the sanitising chamber (20) are both placed in an upper side (20a) of the sanitising chamber (20), and said upper side (20a) of the sanitising chamber faces away from said upper side (3a) of the first part (3).

### Claim 19 (depends on 1)

The extractor hood (1) according to claim 1, wherein the extractor hood (1) is configured as a ceiling hood and has an underside (3b) of said first part or extractor part (3), said underside (3b) is adapted to face a cooking hob in an installed state of the extractor hood (1) and presents at least one entry aperture (89) for the vapour, and the sanitising chamber (20) is integrated in said first part (3) on at least one side of the entry aperture (89), such that both an aperture (41) for entry of air to be sanitised and said at least one exhaust aperture (23) are on said underside (3b).

### Claim 20 (depends on 1)

The extractor hood (1) according to claim 1, further comprising a power supply for the sanitiser chamber (20) that is independent and functions separately from a power supply of the extractor hood, such that simultaneous use of the extractor hood (1) and the sanitiser chamber (20) is prevented by respective controllers thereof.

### Claim 21

An air sanitiser (100), comprising:
an air inlet (108) and an air outlet (109), said air inlet (108) and said air outlet (109) are connected by an air conduit in which a fan (106) is located for drawing in air through the inlet (108) and for discharging air from the outlet (109),
at least one source of UV radiation (107) for sanitising the air is located in said conduit,
the fan (106) comprises an impeller that is rotatable around a fan axis, such that the air is drawn in along said fan axis and discharged orthogonally with respect to said axis, and
the source of UV radiation (107) is located downstream of said fan (106), said air sanitizer (100) being integrated into a housing or cabinet, said housing or cabinet having a plurality of side walls (101-104; 113-116), a front wall (105) and a back wall (118, 119), wherein
a) the inlet (108) and the outlet (109) are arranged in at least one of the side walls; or
b) the inlet (108) and the outlet (109) are arranged in the front wall (105).

### Claim 22 (depends on 21)

The air sanitiser (100) according to claim 21, further comprising a mechanical filter inserted in the air inlet (108) to reduce fouling of the source of UV radiation (107).

### Claim 23 (depends on 21)

The air sanitiser (100) according to claim 21, wherein said cabinet or housing is configured for fixing to a ceiling or wall of a room.
