WO2021007625A1

WO2021007625A1 - Quick smokeless meat roasting device

Info

Publication number: WO2021007625A1
Application number: PCT/BA2020/000004
Authority: WO
Inventors: Safedin ZELlĆ
Original assignee: Zellc Safedin
Priority date: 2019-07-17
Filing date: 2020-07-17
Publication date: 2021-01-21

Abstract

The Quick Smokeless Meat Roasting Device is based on the concept of grilling meat only instead of infrared energy produced by the live coal, infrared energy produced by infrared electric heaters is used which is focused on the meat surface with special mirrors so that the intensity of thermal radiation can be as high as possible and so that the rays can penetrate as deeply as possible into the inner layers of the meat with the mirrors and heaters being placed on the upper side of the appliance so that meat fats cannot drip on them and then burn and make smoke, while this position of the mirror allows the mirrors to clean themselves under the influence of water vapor released during the roasting of the meat and that the pieces of meat rotate on square movable shafts so that a certain mass of meat can receive the greatest amount of energy, ie heat, without burning the meat or roasting faster than it loses its juices so that when roasting, melted meat fat is free and falls into a container under the meat, which is in the shadow of the pieces of meat, so that no infrared rays fall on them, which allows them to heat up a little, not burn and not produce smoke.

Description

QUICK SMOKELESS MEAT ROASTING DEVICE

The technical field to which the invention relates

This electrical device refers to the field of culinary aids.

The technical problem

One of the most demanding processes in cooking is roasting meat. By roasting meat, we mean heat treatment of meat without the presence of water and water vapor. The biggest challenge when roasting meat is that all microorganisms must be completely destroyed by heat, while the meat loses as little of its natural liquid as possible in order to be juicy and tasty.

It is also important to in some way isolate meat fats that dissolve under the influence of temperature so that they don’t ignite and decompose into various chemicals that have unpleasant taste and are bad for our health.

Also, during the decomposition and burning of these fats, a large amount of smoke is created, which is very uncomfortable, especially indoors.

It would also be great that tasty and healthy roasted meat meals can be prepared quickly and efficiently without smoke and with minimal electricity consumption.

The state of the art

There are currently three basic concepts for roasting meat. One concept is to roast meat with hot air which is used in all ovens either electric or those heated by gas or wood.

The problem with this concept of roasting meat is that it is slow. Because of this, the juices in the meat evaporate long before the meat is roasted, so the meat becomes dried, hard and tasteless.

Another concept of roasting meat is by using a pan or some other heated surface.

Here the temperature is transferred to the meat by convection, ie by direct contact of the meat with the hot surface. The problem with this method is that the surface of the meat is in direct contact with the hot surface. Because of this the high temperature is transferred to the outer layer of meat while the inner layers of meat start to heat up much later so you have unevenly roasted meat in burnt and decomposed meat fats.

The third concept of roasting meat is using a charcoal grill or wood on a grill or skewer.

By barbeque we mean the lattice surface on which the meat is placed above the live coal, while by the skewer we mean the meat that rotates on some shaft above the live coal. The advantage of this method is that the heat energy is transferred to the meat by infrared radiation that penetrates deep into the inside of the meat so that it is roasted evenly. This way it takes less time to roast the meat, which again allows to retain more of its juices, which as a result makes it more delicious. The disadvantage of this concept of roasting meat, on one hand, is that it is very difficult to control the whole process, and large amounts of smoke on the other hand, which makes it completely impossible to apply indoors, inside the houses and apartments.

Stating the essence of the invention

The Smokeless Meat Roasting Device is based on the concept of grilling meat above live coal, only instead of infrared energy produced by the live coal, infrared energy is being produced by infrared electric heaters. The energy from the heaters is focused on the meat surface with special mirrors so that the intensity of thermal radiation can be as high as possible. This also makes it possible for the rays to penetrate deeply into the inner layers of the meat. Mirrors and heaters are placed on the top of the device so that meat fats cannot drip on them and burn and create smoke. This mirror positioning allows the mirrors to clean themselves due to the water vapor that is released during meat roasting. Also, pieces of meat are rotated on square moving shafts so that a certain mass of meat can receive the largest amount of energy, ie heat, without the meat burning or roasting faster than losing its juices. In this case the temperature on the surface of the meat can be over 400 °C without the meat burning. Such high temperature enables efficient destruction of all microorganisms in the meat in a short time.

The melted meat fats fall freely into the container under the meat, which is in the shade of the meat pieces. This way no infrared rays fall on them, which allows them to heat up very little, not burn and not produce smoke. These fats are edible and delicious without any carbonated ingredients and can be used as additions to various types of dishes and sauces. This way, it can roast half a kilogram of meat with an input electrical power of 2.5 kw in three minutes. In standard electric kitchen ovens, it takes several times more time and energy to roast the same amount of meat. This is very important because of the energy savings. The infrared fast meat roasting device has several ways in which meat can be roasted quickly and efficiently. One way is to put the pieces of meat on two square rotating shafts in the shape of skewers.

These skewers are rotating with the help of the rotating mechanism. It is also possible to roast ground meat on this rotating mechanism on special rectangular rotating tin plates to which the ground meat is glued with the help of eggs and flour added to the ground meat.

Larger meat pieces, steaks, hamburgers, kebabs, etc. can be roasted in a wire container that can be rotated by hand by 180 degrees. This wire container is also suitable for roasting fish, mushrooms, etc.

This device also has a container for roasting vegetables without the need to add oil or any fat. This container is placed in the same sockets on the device on which the wire pan is placed.

The smokeless meat roasting device is designed in such a way that it takes up as little space as possible in the kitchen and is far more compact than similar meat roasting devices. It is practical to use and easy to maintain.

Brief description of the drawings

Fig 1. - Exterior view of the Smokeless High-speed Roasting Device.

1- Skewer handle (can be placed on one or the other rotating mechanism)

2- Rotating mechanism for skewers

3- Openings for cooling and steam

4- Electric switch for heater 1

5- Electric switch for heater 2

- Electric motor switch

7- Time electrical switch

- Electronic dimmer for regulating electric power in heaters

- Drawer for dripped meat fats and housing for wire pan

10- Skewer handle thread 11- Front lid

12- Back lid

Fig 2. -Exterior view of the Smokeless High-speed Roasting Device with extended drawer for dripping fat and view of the wire pan

1 - Wire pan

2- Wire pan shaft

3- Hole for the hand rotating tool

Fig 3. - Rotating the wire bowl using a hand rotating tool

1- Hexagonal shaft

2- Hand rotating tool for the wire pan

Fig 4. - Rotating mechanism for skewers

1- Skewer handle

2- Front bearing of rotating mechanism

3- Front bearing housing

4- Rotating skewer shaft

5- Rotating mechanism

Fig 5. - Rotating mechanism for ground meat

1 - Rectangular rotating shaft for stuffed meat

Fig 6. - View of the Quick Smokeless Meat Roasting Device with open drawer and vegetable roasting pan 1- Support shaft

2- Vegetable roasting pan

3- Vegetable roasting pan holder

4- Wire pan and vegetable roasting pan holder

Fig 7. - View of the infrared heaters, mirrors and rotating mechanism

1- Mirror

2- Square rotating shaft

3- Rotating bearing

4- Inner shaft of rotating bearing

5- Infrared heater

6- Mirror holder

7- Heater contact surface

8- Heater contact surface

9- Rotating mechanism pulley

10- Motor

11- Conical coupling shaft

12- Rotating bearing

Fig 8. - Main structural girders and mirrors

1- Front structural girder

2- Electrical contacts of infrared heaters

3- Mirror

4- Mirror

5- Mirror girder 6- Conical coupling

7- Rear structural girder

8- The Base

Fig 9. - View of the cross section of the thermal insulation material

1- Outer insulation metal sheet

2- Inner insulation metal sheet

3- Ceramic thermal insulation material

4- Rear thermoplastic insulation frame

5- Front thermoplastic insulating frame

Fig 10. - View of the cross section of the thermal insulation material from the upper side of the device

1- Ceramic thermal insulation material

Fig 1 1. - View of the wire container for roasting meat

1- Hexagonal hole

2- Wire pan shaft

3- Wire hinges

4- Curved friction rod

Fig 12. - View of the open wire container

1 - Wire container shaft

2- Wire hinges

3- Wire container holder 4- Curved friction rod

Fig 13. - Ratio between mirror heaters and meat volume

1- Mirror

2- Infrared heater

3- Meat volume

Detailed description of the invention

Quick Smokeless Meat Roasting Device is square shaped with straight sides where on the front there is a front lid Fig.1-11 with two circular openings in which rotating mechanisms are placed Fig.1-2.

On one of the rotating mechanisms, there is a handle that is used to remove and place the skewer mechanism Fig. 1-1.

The handle can be detached and set aside when the device is not in use, so the device takes up less space in the kitchen. The rotating skewer mechanism has a large pitch thread Fig.1-10. for quick and easy insertion of the handle into the device.

On the upper side of the device there are openings for water vapor Fig.1-3. which is released when roasting meat.

On the back of the device there is a back lid Fig.1.12. on which the control panel is located. It has two electrical switches for turning on and off infrared heaters Fig.1-4-5, then a motor switch Fig.1.6., a timer Fig.1-7, and an electronic dimmer for regulating the electric power of the heaters Fig.1-8.

The control panel is placed on the back of the device because it is less likely to get dirty in this position.

On the left side there is a drawer Fig.9 which serves both as a container for collecting fat dripping from the meat and as a holder in which there is a wire container Fig.2-1. The wire container is placed in the drawer in such a way that the shaft of the wire container Fig.2.2 is placed in the holder of the wire container Fig.6-4. The wire container can be rotated 180 degrees using a hand rotating tool Fig.3-2. The possibility of rotating the wire container allows the meat that is roasted in the wire container to be roasted evenly on all sides. When roasting meat, it is necessary to turn the wire pan 180 degrees once in the time span of two minutes from the beginning of roasting.

The duration of roasting meat in the wire container is slightly longer than when roasting on the rotating mechanism and lasts between 3, 4 and 5 minutes. The wire container consists of two parts that can fold. The lid of the wire container can rotate around the hinges made by bending pieces of wire Fig.12-2. When closing, the lid passes over the curved friction rods Fig.11.4, which prevents it from opening when the wire container rotates 180 degrees.

A container for roasting vegetables Fig.6-2. can also be placed inside the drawer Fig.1-9

The rotating mechanism for skewers Fig.4 is for smaller pieces of meat with a maximum diameter of 4 cm. The pieces of meat are put on the skewer and placed in the focus of the mirror Fig.8-3. In doing so, the square rotating shaft Fig.4. at the rear, rests on a conical coupling Fig.8-6. and starts the engine Fig.7-10. at 1 rpm. Conical coupling Fig.8- 6. is conical in shape to make it easier to center the square rotating shaft when placing. A rectangular hole passes through the conical coupling into which the square rotating shaft rests so that it is possible to rotate the square rotating shaft without slipping. The motor drives two square rotating shafts simultaneously via two pulleys Fig.7-9 and two conical couplings. The conical coupling is with the shaft of the conical coupling Fig.7-11. attached to the inner ring of the rotating bearing Fig.7-12. The square rotating shaft is attached to the inner shaft of the rotating bearing Fig.7-4.

In addition to the square rotating shaft Fig.4-4, the device also has a special metal rectangular rotating shaft Fig.5-1. This component of the rotating mechanism is used for roasting ground meat. Ground meat, to which eggs and flour are added, is simply glued around this rectangular surface.

Structural girders Fig.8-1-7. consist of three layers, an inner and outer metal layer and a thermal insulation layer between them Fig.9.1-2-3. The thermal insulation layer reduces heat transfer to the rear lid due to the sensitivity of the electronic components of the control panel to high temperature but also to all external surfaces of the device due to the user's sense of security that the outside of the device is not hot Fig.10-1.

The sources of thermal radiation are two electric infrared heaters Fig.7-5, which are attached to the structural girders Fig.8-1-7. The electric control panel Fig.1-4-5-6-7-8 can control the switching on, switching off, power, and operating time of the heater. The heaters are located at the focal point of the mirror Fig.7-1.

The mirrors are located on the top of the device. The mirrors are constructed as in Fig.13. so that they maximally reflect and direct the heat rays to the volume of the meat Fig.13-3 which rotates on the square rotating axis Fig.4-4. On the other hand, the construction of these mirrors enables the maximum direction of heat rays on the wire container when you want to roast meat in that way.

Claims

Patent claims

1. Quick Smokeless Meat Roasting Device characterized in that it is constructed in the form of a square with straight sides Fig.1 , where the front side has a front lid Fig.1-1 1 with two circular openings in which the rotating mechanisms Fig.1-2 for roasting meat are located in the shape of a skewer while on the side there is a pull-out drawer Fig.1-9 which serves as a container for collecting dissolved fats and in which a wire container Fig.2-1 for roasting meat is located while on the upper side of the device there are electric infrared heaters Fig.13-2 in the focus of metal mirrors Fig.13-1 designed on the one hand for maximum reflection of heat rays on the meat volume Fig.13-3 and on the other hand designed for self-cleaning with steam released during meat roasting.

2. Quick Smokeless Meat Roasting Device according to Claim 1 , characterized in that it has a rotating mechanism for skewers Fig.4. which serves to wind small pieces of meat with a maximum diameter of 4 cm and so they can be placed in the focus of the mirror Fig.3 where the square rotating shaft Fig.4-4. at the rear rests on a conical coupling Fig.8- 6. and starts the motor Fig.7-10. where the conical coupling is Fig.8-6. conical shape to make it easier to center the square rotating shaft when inserting the skewer into the device and where a rectangular hole passes through the conical coupling into which the square rotating shaft rests so that the square rotating shaft rotates without slipping and where the motor simultaneously over two pulleys Fig.7-9. and two conical couplings drives two square rotating skewer shafts.

3. Quick Smokeless Meat Roasting Device according to claim 1 , characterized in that its upper sides have water vapor openings Fig.1-3. which is released during roasting of meat while on the back of the device there is a back lid Fig.1-12. on which there is an electric control panel and on which there are two electric switches for switching on and off infrared heaters Fig.1-4-5, then a motor switch Fig.1.6., a timer Fig.1-7, and electronic dimmer for regulating electric power on heaters Fig.1-8. while on its front side there is a front lid Fig 1- 11. with circular openings for the rotating mechanism for skewers Fig.1-2.

4. Quick Smokeless Meat Roasting Device according to Claim 1 , characterized in that on its left side there is a drawer Fig.1-9. which serves as a container for dripping meat juices and also as a holder in which the wire container Fig.2-1. is placed in such a way that the shaft of the wire container Fig.2-2 is placed in the holder of the wire container Fig.6-4, the wire container can be rotated manually by 180 degrees using a hand rotating tool Fig.3- 2. and the possibility of rotating the wire pan allows the meat to be roasted in the wire container evenly on all sides.

5. Quick Smokeless Meat Roasting Device according to Claim 1 , characterized in that the wire container consists of two folding parts where the lid of the wire pan can rotate around hinges made by bending pieces of wire Fig.12-2. so that when closing, the lid passes over curved friction rods Fig.11-4 which prevents it from opening when the wire container is rotated 180 degrees.

6. Quick Smokeless Meat Roasting Device according to Claim 1 , characterized in that in addition to the square rotating shaft of Fig.4-4. the device also has a special metal rectangular rotating shaft of Fig.5-1. which is used for roasting ground meat to which eggs and flour are added so that it can be glued around this rectangular surface.

7. Quick Smokeless Meat Roasting Device according to Claim 1 , characterized in that a container for roasting vegetables can also be placed in the drawer of Fig.1.9.

8. Quick Smokeless Meat Roasting Device according to claim 1 , characterized in that the structural girders Fig.8-1-7. consist of three layers, inner and outer metal layer and thermal insulation layer between them Fig.9.1-2-3 where the thermal insulation layer serves to reduce heat transfer to the rear lid space due to the sensitivity of electronic components of the control panel to high temperature but also to all external surfaces of the device Fig.10-1 due to the user's sense of security that the outside of the device is not hot.

9. Quick Smokeless Meat Roasting Device according to claim 1 , characterized in that the mirrors are located on the upper side of the device and are constructed as in Fig.13. so as to maximally reflect and direct heat rays to the meat volume Fig.13-3. that is on the rotating shaft Fig.4-4.

10. Quick Smokeless Meat Roasting Device according to claim 1 , characterized in having a handle Fig.1-1 which can be removed and placed as required to increase the compactness of the device and which is attached to the rotating skewer mechanism Fig.1 - 2 via a thread with a large threaded step.

11. Quick Smokeless Meat Roasting Device according to claim 1 , characterized in that the mirrors Fig.8-7-8 and the infrared heaters are carried by the front and rear structural girders Fig.8-1-7, which are again connected by the base Fig.8-8.