# US 2019/0167038 A1 · Autonomous apparatus for cooking food, and corresponding method

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- Number: US 2019/0167038 A1
- Document ID: US20190167038A1
- Status: Published application
- Kind: A1
- Application number: 16/323,510
- Filed: 2017-08-02
- Published: 2019-06-06
- Earliest claimed: 2016-08-05
- Assignees: De' Longhi Appliances S.R.L. Con Unico Socio
- Applicants: De' Longhi Appliances S.R.L. Con Unico Socio
- Inventors: Giuseppe De' Longhi; Gianpaolo Trevisan
- Web page: https://patentgrep.com/patent/US20190167038A1

## CPC

- A47J 37/0641: {with forced air circulation, e.g. air fryers}
- A47J 37/0842: {with electronic timers}
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES

## Abstract

Autonomous apparatus for cooking food comprising a support body (12), an openable lid (14), an internal container (16) which can be extracted/inserted with respect to said support body (12) and open at the top, at least one heating device (18) and at least one element (20) to generate a flow of air toward the inside of said container.

## Claims

### Claim 1

Autonomous apparatus for cooking food comprising a support body (12), an openable lid (14), an internal container (16) which can be extracted/inserted with respect to said support body (12) and open at the top, at least one heating device (18) and at least one element (20) to generate a flow of air toward the inside of said container (16), said at least one air flow generator element (20) being connected to a return exit (28) cooperating, when said lid (14) is in the closed position on said container (16), with a peripheral edge (24a) of said container (16) to remove said flow of air from said container (16) and to channel it toward said at least one heating device (18) by means of an annular pipe (30), characterized in that said annular pipe (30) has two ends symmetrically connected to said at least one air flow generator element (20).

### Claim 2 (depends on 1)

Autonomous apparatus as in claim 1, characterized in that said annular pipe (30) has a plurality of fissures (32) disposed along it and in correspondence with an upper edge (13) of said support body (12).

### Claim 3 (depends on 1, 2)

Autonomous apparatus as in claim 1 or 2, characterized in that it comprises a sending aperture (34) with a substantially hollow toroidal shape cooperating with a peripheral edge (24a) of the container (16).

### Claim 4 (depends on 3)

Autonomous apparatus as in claim 3, characterized in that said sending aperture (34) has a circumferential slit (36) configured to allow said flow of air to exit from the cavity of said sending aperture (34) and to position itself with said lid (14) at least partly closed in said container (16).

### Claim 5 (depends on 3, 4)

Autonomous apparatus as in claim 3 or 4, characterized in that said sending aperture (34) develops on a lower circumference with respect to said circumferential edge (24a) to determine the discharge of said flow of air from said container (16) toward said return exit (28).

### Claim 6

Autonomous apparatus as in any claim hereinbefore, characterized in that said container (16) is rotatable around an axis of rotation by means of a drive member (46).

### Claim 7

Autonomous apparatus as in any claim hereinbefore, characterized in that it comprises a mixing device (48) provided with at least one mixing blade rotating with respect to said container (16).

### Claim 8

Method to return a flow of air inside an autonomous apparatus (10) for cooking food comprising a support body (12), an openable lid (14), an internal container (16) which can be extracted/inserted with respect to said support body (12) and open at the top, at least one heating device (18) and at least one element (20) to generate a flow of air toward the inside of said container (16), characterized in that it provides to:
heat a flow of air by means of said at least one heating device (18);
remove said flow of used air from said container (16) through a return exit (28) cooperating, when said lid (14) is in the closed position on said container (16), with a peripheral edge (24a) of said container (16);
channel said flow of air toward said at least one heating device (18) by means of an annular pipe (30) in order to define a closed circuit travel of said flow of air, wherein said the annular pipe (30) has two ends, symmetrically connected to said at least one air flow generator element (20).