Grill for cooking pressed food in a microwave and impulse oven

Abstract

The present patent application discloses a grill for cooking pressed foods such as paninis in a microwave and impulse oven, belonging to the field of grills, grills and sandwich grills, more specifically for cooking panini snacks in an oven; more specifically, comprising a lower plate (2) and an upper grill (3) positioned parallel above the lower plate (2) and connected to it by four arms (4) that enable the upper grill (3) to move relatively upwards and downwards, wherein the lower plate has supports (14, 15) for its installation inside the cooking chamber (26) of the oven (24).

Description

Technical Field

[0001] This patent application relates to a grill for cooking pressed foods (such as panini) in microwave and shock ovens, and relates to the fields of grill pans, grills and sandwich grills, and more specifically for cooking panini snacks in an oven.

[0002] Panini is a type of sandwich, preferably made with Italian bread, and heat-pressed on a grill or sandwich grill to leave grill marks on the bread.

[0003] More precisely, this application includes a specially developed oven rack, preferably adapted to a specific oven model known in the prior art, designed to add another function to it without altering the original characteristics and functions of the oven, thereby enabling it to be factory-installed in a new oven or in an oven acquired prior to the development of this accessory. Furthermore, it is also compatible with any oven model permitted by the prior art.

[0004] Therefore, this is an accessory that allows the oven to operate in the traditional way, while also functioning as a device for cooking panini. Background Technology

[0005] To clearly illustrate the prior art, some patent documents relating to panini cooking equipment and general grills can be cited.

[0006] Patent document BR 22 2019 017573 5 U2, titled " Disposition introduced in Toaster The invention discloses a sandwich maker device comprising: a housing including: a base; a hinged top cover; a hinge connecting the base; and a handle (not shown) extending from the cover; the base and the cover having respective upper and lower regions opposite each other, on which respective upper and lower heating plates are mounted, and food to be heated is placed between them; the sandwich maker further includes a heating unit, the components of which are installed in the base and the cover, and a power cable with a plug at its end. In this device, the heating unit is an electromagnetic induction heating unit for heating a ferromagnetic heat exchange plate, which exchanges heat with the heating plate, and the heating plate then exchanges heat with the food to be heated.

[0007] Patent document MU 8300952-3 U2, titled " Disposition introduced in toaster With plate and deflector system for heat dissipation(A device introduced in a sandwich maker with a plate and deflector system for heat dissipation) discloses a device introduced in a sandwich maker-type household appliance, wherein specific devices such as heating plates, deflectors, radiators and other parts of its metal parts are used, and the casing or body of the sandwich maker is made of engineering plastics, thereby providing excellent operating performance, mechanical resistance and low manufacturing cost in the household appliance, thus reducing its overall weight.

[0008] U.S. Patent document 7,514,655B2, entitled "GRELHA DE PANNINI INCLINÁVEL" (Tilting Panini Cooking Grill), discloses an electric grill comprising a support structure housing an upper heating section and a lower heating section connected by a hinge. The hinge allows for a wide range of movement, enabling the upper heating section to face the lower heating section, to be vertical, or to be at a 180-degree angle. Furthermore, the upper and lower heating sections can be tilted to separate excess fat, oil, and liquid from the food being cooked. The electric grill disclosed herein may also include a digital display and a user input keyboard.

[0009] Patent document MU 8501389-7 U2, titled " Technical disposition introduced in Double grill (Technical Device Introduced in a Double Grill), discloses a device consisting of a perforated plate, corner brackets, hinges, cables, and a hook-type locking and closing system. Notably, the double grill has two parts connected by a set of hinges, one part having a bottom made of a perforated plate framed by corner brackets. It should be noted that on the edges opposite to the two extensions containing the hinges and supporting the double grill, there are two cables made of wood, polyethylene, PVC, or equivalent materials, located at their opposite ends. The second part also has a perforated plate bottom framed by corner brackets, the front of which includes the hook-type locking and closing system.

[0010] Weaknesses of existing technology Patent document BR 22 2019 017573 5 U2“ Disposition introduced in toaster (The device introduced in the sandwich maker), MU 8300952-3 U2 Disposition introduced in toaster with plate and deflector system for heat dissipation (The device introduced in a sandwich maker with a plate and deflector system for heat dissipation), and US7514655B2 Panini grill Inclinable The "(tiltable panini cooking grill)" discloses a general-purpose device for cooking panini-like snacks or sandwiches, which is equipped with its own heating device. Its main drawback is that the plates performing the pressing operation are not parallel when food is placed in an alternating manner, and it has no resemblance to the subject of this patent application.

[0011] Conversely, patent document MU 8501389-7 U2" Technical disposition introduced in a double grill The object shown in (the technical device introduced in the double grill) is designed for grilling and is not suitable for cooking panini-like snacks or for use in an enclosed cooking room; it bears no resemblance to the object presented in this patent application and merely reflects the general level of the prior art.

[0012] General Electric appliances used for cooking pressed foods (such as panini), and even ovens specifically designed for this purpose, have existed for some time. However, General Electric cannot provide the quality, consistency, and speed required by commercial establishments.

[0013] Ovens designed specifically for this cooking method limit the preparation of other types of food, as their primary focus is on cooking panini.

[0014] It should be noted that the grill marks left on the food are important for panini sandwiches, which is why a parallel, tilted grill was designed. This consideration is not present in existing grill designs. Summary of the Invention

[0015] Proposed solution The proposed solution involves developing a grill that is compatible with specific oven models known in the prior art, enabling it to cook panini while maintaining its original functionality.

[0016] The oven comprises a professional cooking appliance, a "ventilation-free" type, requiring no exhaust system, electrically powered, with microwave radiation and air impact as its heat source, and featuring a fairly deep horizontal rectangular prism structure, whose height is greater than its width when viewed from the front. It has a rectangular prism cooking chamber with a volume of approximately 13 liters and is equipped with a top-hinged front door.

[0017] Therefore, this patent application is disclosed with the aim of obtaining an accessory that is easy to configure and arrange to convert the oven into a hybrid cooking device, i.e., capable of cooking pressed foods without any other type of equipment, which can be operated in a conventional manner and, by incorporating the accessory described herein, will have the function of cooking panini. This applies to new ovens or equipment purchased before the development of this accessory.

[0018] As presented, the Panini cooking accessory offers end-user flexibility; that is, by using the Panini cooking accessory, the oven provides the option to cook such snacks. Thus, end-users do not need a separate oven or appliance specifically for this purpose; users can install the accessory themselves without any technical intervention, thereby saving resources and increasing the productivity of institutions and / or businesses.

[0019] This accessory is based on a mechanical design using aluminum and stainless steel parts specifically sized for this purpose. The manufacturing process utilizes laser cutting machines and machining systems, resulting in virtually no variations. After the mechanical parts are manufactured, the two main components (upper and lower plates) are coated with a non-stick coating for easy cooking and cleaning.

[0020] Therefore, it is understandable that the structure of the components under discussion is extremely simple and thus easy to manufacture; however, it achieves excellent practicality and functionality, and has an innovative design compared to known products.

[0021] It is important to emphasize that microwave systems can interfere with the oven's electronic components through the corresponding grill rack located inside the oven. Therefore, several studies have been conducted to minimize this interference. Among the optimal grill rack design options, a diagonal shape has been concluded to be the best fit for the device.

[0022] Conversely, the design features two parallel grills, the first fixed to the bottom of the device and the second movable at the top. During preparation, the upper grill presses against the food in a parallel manner, and its heat leaves a grill pattern, a characteristic feature of panini sandwiches.

[0023] These are key aspects of this document, as it is conceived through innovative design, resulting in a harmonious and practical whole with a distinctive and characteristic appearance. In addition to its construction, the product also excels in its versatility and ease of use. Attached Figure Description

[0024] To supplement this specification and to better understand the features of the invention, and according to its preferred practical embodiments, this specification is accompanied by a set of drawings, which are illustrated in an exemplary and non-limiting manner as follows: Figure 1 - A front perspective view of the cooking grill in the open position is shown.

[0025] Figure 2 - A bottom perspective view of the cooking grill in the open position is shown.

[0026] Figure 3 - This shows a rear perspective view of the cooking grill in the open position.

[0027] Figure 4 - A top view of the cooking grill in the open position is shown.

[0028] Figure 5 - This shows a right-side view of the cooking grill in the open position.

[0029] Figure 6 - A front perspective view of the cooking grill in the closed position is shown.

[0030] Figure 7 - This shows a right-side view of the cooking grill in the closed position.

[0031] Figure 8 - A top view of the cooking grill in the closed position is shown.

[0032] Figure 9 - An exploded perspective view of a cooking grill is shown.

[0033] Figure 10 - A right-side view of the hinged arm connecting the lower and upper plates is shown.

[0034] Figure 11 - A perspective view of the front support is shown.

[0035] Figure 12 - A perspective view of the rear support is shown.

[0036] Figure 13 - A perspective view showing details of the lower plate, reinforcing bars, and upper grill.

[0037] Figure 14 - A cross-sectional side view of the oven is shown, detailing the cooking chamber, in which the grill rack in the open position can be seen.

[0038] Figure 15 - A cross-sectional side view of the oven is shown, detailing the cooking chamber, in which the grill rack in the closed position can be seen.

[0039] Figure 16 - A cross-sectional top view of the oven is shown, detailing the cooking chamber, in which the grill rack in the open position can be seen.

[0040] Figure 17 - A cross-sectional top view of the oven is shown, detailing the cooking chamber, in which the grill rack in the closed position can be seen.

[0041] Figure 18 - A perspective view of a microwave oven without exhaust fan is shown, which has an impinged airflow and a cooking grill adapted therein.

[0042] Figure 19 - A schematic diagram of an oven with a grill is shown, which has undergone a voltage standing wave ratio test, showing the cooking chamber, including an outer steel wall (28) 304 and an inner aluminum wall (29); aluminum guides (30); a mica plate (31) located below the guides and a "Besthermo-F" type heat insulation plate (32) located above the cooking chamber.

[0043] Figure 20 - Details of the guide (30) are shown, in which guide "B" can be seen to the left of guide "A".

[0044] Figure 21 shows the frequency-voltage standing wave ratio (VSWR). Detailed Implementation

[0045] The subject of this patent discloses an oven rack (1) comprising a lower plate (2) of horizontal plane and an upper rack (3) of horizontal plane parallel above it.

[0046] The lower plate (2) has a smooth lower and upper surface with multiple recessed linear grooves that extend from the front to the rear and are positioned in parallel.

[0047] Conversely, the upper grill (3) consists of a flat rectangular plate equipped with multiple parallel linear openings positioned diagonally.

[0048] The upper grill (3) is connected to the lower plate (2) by four arms (4), which are placed in pairs and located on the side.

[0049] More specifically, the arm (4) is oblong, with a front shoulder (6) and a rear shoulder (5) located on the longer sides near the ends, as each end of the arm (4) has a circular hole (7) next to it. The shoulders (5, 6) have a parabolic triangular shape.

[0050] The arm (4) is attached to the side of the lower plate (2) and the upper grill (3) by screws (10) that pass through the hole (7) and are screwed into the corresponding holes (8, 9).

[0051] It can be observed that the area next to the screw head (10) is smooth, thus the arm (4) allows the upper grill (3) to move vertically in both directions to move away from or towards the lower plate (2) while always remaining parallel to it. When the front arm (4) rests on it, its downward movement is restricted by the front support; when the rear shoulder (5) rests on it, its upward movement is restricted by the pin (27). The pin (27) is screwed into a hole (8A) provided on the side of the lower plate (2).

[0052] To ensure the stability of the equipment during the movement of the upper grill (3), a reinforcing bar (11) is provided at a horizontal position between the rear arms (4). The end of the reinforcing bar (11) receives a screw (12) that passes through the corresponding arm (4) through a hole (13).

[0053] On the lower side of the lower plate (2), next to the side rolled edge, there are two opposing front supports (14) at the front and two opposing rear supports (15) at the rear. These supports are fixed to the lower plate (2) by screws (16).

[0054] The front support (14) has a rectangular prism with a semi-elliptical cavity (17) opening to the rear; and two opposing lugs (18) with round holes, flush with the top, one facing forward and the other facing backward.

[0055] The rear support (15) has a rectangular prism with a downward-facing semi-elliptical cavity (19); and two opposing lugs (20) with round holes, flush with the top, one facing forward and the other facing backward.

[0056] Finally, the upper grill (3) has a handle (21) in the shape of an inverted truncated cone, located next to and centered on the front rolled edge. The handle (21) allows the upper grill (3) to be moved relative to the grill manually or with the aid of a tool while the grill is being heated.

[0057] To install the grill rack (1) into the oven (24), simply install the transverse pin (25) set in the cooking chamber (26) into the cavities (17, 19) of the front support (14) and the rear support (15), respectively.

[0058] Different angles of opening were considered for the upper grill during the design process. However, tests related to voltage standing wave ratio (VSWR) led the inventors to choose the upper grill (3) with diagonal opening (23) because it exhibited better parameters.

[0059] The table below (T1) shows the “VSWR” values ​​of the grill (1) at 2.46 GHz obtained in the numerical test, and the graph is shown in Figure 21.

[0060] Table (T1) Angle VSWRA VSWRB 0º 6.52 4.13 90º 1.77 2.88 180º 4.25 5.20 270º 7.80 6.41 It is understood that when this invention is put into practice, certain details of the construction and form may be modified without departing from the basic principles expressly demonstrated in the claims, and the terminology used is for descriptive purposes and not for limiting purposes. Claims (as amended under Article 19 of the Treaty) 1. A grill for cooking pressed food in a microwave and shock oven, the grill being an oven grill (1) comprising two flat plates called "grills", a lower grill (2) and an upper grill (3), specifically for cooking a snack called panini, characterized in that grill marks are intentionally formed on both surfaces of the food, the grill marks being caused by localized heat transfer in the contact area, forming characteristic dark lines or patterns, the grill being designed for use in an oven with heat sources including microwave radiation and shock air, comprising the upper grill (3) having diagonal openings at a 45° angle. 2. The oven rack for cooking pressed food in a microwave and shock oven according to claim 1, the oven rack being an oven rack (1) comprising two flat plates called "grills", a lower grill rack (2) and an upper grill rack (3), specifically for cooking a snack called panini, characterized in that the device converts the oven into a hybrid cooking device capable of cooking the pressed food first. 3. The oven rack for cooking pressed food in a microwave and shock oven according to claim 1, the oven rack being an oven rack (1) comprising two flat plates called "grills", a lower grill rack (2) and an upper grill rack (3), specifically for cooking a snack called panini, characterized in that the upper part of the grill rack is arranged parallel to the lower part by a stabilizing rod placed on the back of the grill rack, the stabilizing rod comprising four arms (4) attached to the sides of the lower grill rack (2) and the upper grill rack (3) such that upward or downward movement is parallel to the base of the lower grill rack (2). 4. The oven rack for cooking pressed food in a microwave and shock oven according to claim 1, the oven rack being an oven rack (1) comprising two flat plates called "racks", a lower rack (2) and an upper rack (3) specifically for cooking a snack called panini, characterized in that the upper rack (3) has a handle (21) in the shape of an inverted truncated cone geometry, located on the front rolled edge and centered, thereby enabling the upper rack (3) to be moved manually or with a tool while the rack is heated. 5. A grill for cooking pressed food in a microwave and shock oven according to claim 1, the grill being the oven grill (1), comprising two flat plates called "grills", a lower grill (2) and an upper grill (3), specifically for cooking a snack called panini, characterized in that the upper grill (3) is interconnected with the lower plate (2) by the four arms (4), the four arms being opposite each other and located on the sides, the arms (4) being oblong, having a rear shoulder (5) and a front shoulder (6) located on the larger sides near the ends, because each end of the arms (4) has a round hole (7) next to it, wherein the shoulders (5, 6) have a parabolic triangular shape; the arms (4) are attached to the sides of the lower plate (2) and the upper grill (3) by screws (10), the screws being smooth in the area near the head, passing through the holes (7) and screwed into the corresponding holes (8, 9), wherein a horizontal reinforcing rod (11) is inserted between the rear arms (4), the end of which receives the screw. (12) The screw passes through the corresponding arm (4) through the hole (13); thus, near the forearm (4), a pin (27) is screwed into the hole (8A) provided on the side of the lower plate (2); because on the lower plate (2), near the side flange, there are two opposing front supports (14) at the front and two opposing rear supports (15) at the rear, which are attached to the lower plate (2) by screws (16); wherein the front support (14) has a rectangular prism with a rearward opening. The rear support (15) comprises a rectangular prism with a downward-opening semi-elliptical cavity (19); and two opposing lugs (20) with round holes, flush with the top, one facing forward and the other facing backward; the upper grill (3) has a handle (21) in the shape of an inverted truncated cone, located next to and centered on the front rolled edge.

Claims

1. A grill for cooking pressed food in a microwave and shock oven, the grill being an oven grill (1), comprising a lower plate (2) of a horizontal plane and an upper grill (3) of a parallel horizontal plane located above it, the lower plate (2) having a smooth lower surface and a smooth upper surface, the upper surface having a plurality of parallel recessed linear grooves (22) extending from the front to the rear, characterized in that, It is a pressure plate placed inside the oven for food preparation, designed to apply pressure to both the top and bottom sides of the food simultaneously, thereby creating obvious grill marks on the surface of the food during the food preparation process, without causing any interference to the electronic components of the oven.

2. The oven rack for cooking pressed food in a microwave and shock oven according to claim 1, the oven rack being an oven rack (1), comprising a lower plate (2) of a horizontal plane and an upper rack (3) of a horizontal plane parallel to it, the lower plate (2) having a smooth lower surface and a smooth upper surface, the upper surface having a plurality of parallel recessed linear grooves (22) extending from the front to the rear, characterized in that... The upper part of the pressure plate is arranged parallel to the lower part via a stabilizing rod placed at the rear of the grill.

3. The grill rack for cooking pressed food in a microwave and impact oven according to claim 1, characterized in that... The upper grill (3) is composed of a flat rectangular plate, which has multiple parallel linear openings (23) positioned diagonally.

4. The oven rack for cooking pressed food in a microwave and shock oven according to claim 1, the oven rack being an oven rack (1), comprising a lower plate (2) of a horizontal plane and an upper rack (3) of a horizontal plane parallel to it, the lower plate (2) having a smooth lower surface and a smooth upper surface, the upper surface having a plurality of parallel recessed linear grooves (22) extending from the front to the rear, characterized in that... The upper grill (3) is interconnected with the lower plate (2) via four arms (4), the four arms being opposite each other and located on the sides. The arms (4) are oblong, with rear shoulders (5) and front shoulders (6) located on the larger sides near the ends, as each end of the arms (4) has a round hole (7) next to it. The shoulders (5, 6) have a parabolic triangular shape. The arms (4) are attached to the sides of the lower plate (2) and the upper grill (3) by screws (10). The screws are smooth in the area near the head, pass through the holes (7) and are screwed into the corresponding holes (8, 9). A horizontal reinforcing rod (11) is inserted between the rear arms (4), the end of which receives a screw (12). The screw passes through the corresponding arm (4) through the hole (13). A pin (27) is screwed into the lower arm (4) near the front arm (4). The lower plate (2) has holes (8A) on its side; because on the lower plate (2), near the side rolled edge, there are two opposing front supports (14) at the front and two opposing rear supports (15) at the rear, which are attached to the lower plate (2) by screws (16); wherein the front support (14) has a rectangular prism with a semi-elliptical cavity (17) opening to the rear; and two opposing lugs (18) with round holes, flush with the top, one facing forward and the other facing backward; the rear support (15) has a rectangular prism with a semi-elliptical cavity (19) opening downward; and two opposing lugs (20) with round holes, flush with the top, one facing forward and the other facing backward; finally, the upper grill (3) has a handle (21) with an inverted truncated cone geometry, located next to and centered on the front rolled edge.

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