Biomass fuel furnace

Abstract

The utility model provides a kind of biomass fuel furnace, adopt the substantially closed new air flow design structure, this structure is used to guide the continuous airflow through combustion system, enhance airflow and produce natural suction effect, make combustion more sufficient and cool slower, to create balanced slow cooking effect.

Description

Technical Field

[0001] This application relates to cooking equipment, particularly biomass fuel stoves. Background Technology

[0002] Traditional biomass fuel stoves typically use a combination of a metal body and ceramic insulation materials to improve heat retention and fuel efficiency. These designs usually include the following features: ceramic wool or refractory bricks are commonly used as insulation materials to reduce heat loss and improve combustion efficiency; the closest traditional biomass fuel stoves have ceramic lining insulation materials.

[0003] Traditional stoves typically have a fixed air inlet at the bottom of the combustion chamber to aid combustion. Some designs have a secondary air inlet near the top of the combustion chamber to improve airflow.

[0004] Most traditional stoves lose heat through the furnace body, resulting in high external surface temperatures. This can reduce user safety and cause material degradation over time. Furthermore, traditional designs rely on unstructured, passive airflow, which can lead to inconsistent combustion efficiency and heat distribution.

[0005] Typical examples of such stoves include insulated biomass stoves with passive ventilation systems, such as the Kenya Ceramic Jiko (KCJ) or other ceramic-lined stoves designed to improve stove design.

[0006] In summary, traditional biomass fuel stoves often face problems such as high external surface temperatures, inefficient airflow leading to uneven combustion, and reliance on ceramic insulation materials, which degrade over time. These issues reduce the stove's durability, increase the risk of burns, and limit overall efficiency.

[0007] Current biomass fuel stoves use ceramic walls to protect the sides of the stove from overheating, thus preventing burns to users who touch the outside. This, in turn, reduces the durability of the combustion zone material and increases health risks to users due to the corrosive effect of the ceramic material.

[0008] Other biomass fuel stoves use more steel supports in their stove structure to achieve the same end result, which increases the cost of the stove, but still cannot achieve the end result efficiently. Utility Model Content

[0009] The purpose of this invention is to provide an improved biomass fuel stove to address at least one of the shortcomings of conventional stoves in terms of heat management, combustion efficiency, and user safety.

[0010] To achieve the above objectives, some embodiments of this application provide a biomass fuel stove comprising: a main body including a shell having a lower opening supported and sealed by a supporting base plate; an inner cylinder disposed within the shell; a burner assembly disposed within the inner cylinder; a bridging assembly disposed below the burner assembly, providing an air intake passage from a side opening of the shell to the bottom of the burner assembly; and an ash collection assembly movably mounted on the bridging assembly, the ash collection assembly being configured to be movable such that the air intake passage varies between fully open and fully closed.

[0011] In some embodiments, the bridging assembly includes a heat shield that is tightly engaged with the lower portion of the burner assembly to communicate with the combustion chamber, and a bridge member that radially engages in the housing and the inner cylinder through a first lateral opening in the housing and a second lateral opening in the inner cylinder; the bridge member is attached, secured, or connected to the sidewall of the housing by welding or non-welding.

[0012] In some embodiments, the cable tray consists of a top plate, a bottom plate, and a sidewall located between the top plate and the bottom plate.

[0013] In some embodiments, the inner surface of the side wall of the cable tray is provided with a dust collection tray guide rail, and the dust collection assembly cooperates with and is guided by the dust collection tray guide rail.

[0014] In some embodiments, the ash collection tray guide rail is provided with a locking mechanism, and the ash collection component cooperates with the locking mechanism to lock the position of the ash collection component.

[0015] In some embodiments, a furnace top assembly is further included, disposed at the upper opening of the housing, aligned with and engaging with the side wall of the housing, the furnace top assembly having one or more pot supports at its upper end; the upper part of the combustion chamber engages with the opening of the furnace top assembly.

[0016] In some embodiments, the burner assembly is fixedly connected to the inner cylinder by welding or non-welding, the burner assembly including a fuel cartridge and a grate; the fuel cartridge includes a lower portion, the grate is engaged with the lower portion of the fuel cartridge, and the grate partially penetrates the sidewall of the fuel cartridge.

[0017] In some embodiments, the upper part of the fuel cartridge has an outwardly turned edge that overlaps with the upper edge of the inner cylinder.

[0018] In some embodiments, the bridging component and / or the ash collection component and / or the supporting base plate are integrally molded components.

[0019] In some embodiments, the ash collection assembly includes an ash tray that engages with the cable tray and is aligned with the lower opening of the heat insulation cover, and a door panel disposed at the end of the ash tray and capable of closing the first lateral opening after the ash tray engages with the cable tray from the side opening. The door panel is also provided with a handle.

[0020] Furthermore, to achieve the above objectives, this application proposes a biomass fuel furnace with an improved air intake passage: it includes a shell having an upper opening and a lower opening; a support base plate shaped to match the lower opening to support the shell and close the lower opening; an inner cylinder disposed within the shell; a burner assembly including a combustion chamber disposed inside the inner cylinder; and a bridging assembly tightly engaged below the burner assembly; the bridging assembly providing an air supply passage from a first lateral opening of the shell through a second lateral opening of the inner cylinder to the lower part of the burner assembly.

[0021] In some embodiments, the air supply passage is airtight.

[0022] In some embodiments, the bridging assembly includes a heat shield that is tightly engaged with the lower part of the burner assembly to communicate with the combustion chamber, and a bridge member that radially engages with the outer shell and the inner cylinder through a first lateral opening of the outer shell and a second lateral opening of the inner cylinder, the top opening of the top plate of the bridge member tightly engaging with the lower opening of the heat shield, the bridge member having a side opening in the radial direction as an airflow inlet; and an ash collection assembly including an ash tray that engages with the bridge member and is aligned with the lower opening of the heat shield, and a door panel disposed at the end of the ash tray and capable of closing the first lateral opening after the ash tray engages with the bridge member through the side opening.

[0023] Some embodiments of this application provide a novel, fully enclosed airflow channel design that guides a continuous airflow through the combustion chamber, improving oxygen supply and generating a natural draft effect. As a result, the stove burns hotter and more efficiently while maintaining a balanced slow-cooking effect, thereby reducing fuel consumption and improving cooking performance.

[0024] In some embodiments, angular slots are provided on the housing for ventilation. These slots reduce the outer surface temperature of the stove housing by optimizing airflow as a cooling system for the housing, making it safer for the user and extending the service life of the housing structural materials.

[0025] In some embodiments, the inner cylinder is made of steel and serves as a steel stillage for optimizing the stove's materials. Traditional biomass stoves use excessive amounts of stainless steel or other materials to achieve high performance, while our biomass stove design incorporates a steel stillage structure, significantly reducing the overall amount of stainless steel used in the stove while maintaining or exceeding the performance of existing high-efficiency stoves. This not only reduces manufacturing costs but also makes the stove lighter, more sustainable, and more cost-effective.

[0026] In some embodiments, the heat shield is made of stainless steel, a design that replaces ceramic cotton insulation material which poses a health risk to users, enabling the biomass fuel furnace of this application to maintain structural durability while ensuring effective heat retention and reflection.

[0027] User Safety Experience: By implementing a newly designed natural cooling system and airflow regulation, this invention effectively reduces the external temperature of the stove. Therefore, it enhances user safety by reducing the risk of burns during operation, while the use of steel as the outer body improves durability, ensuring the stove can withstand longer use compared to traditional charcoal and coal-fired stoves.

[0028] User Cooking Experience: By utilizing a controlled air intake system and efficient combustion design, this stove optimizes heat and fuel efficiency, ensuring more heat is transferred to the cookware. Therefore, it significantly reduces overall fuel consumption by over 70% compared to conventional stoves. Furthermore, at low power settings, the stove efficiently utilizes residual heat for slow cooking and simmering, enhancing the overall cooking experience and improving food quality. Attached Figure Description

[0029] Exemplary embodiments are illustrated with reference to the accompanying drawings. The embodiments and drawings disclosed herein should be considered illustrative rather than restrictive.

[0030] Figure 1 This is an exploded view of a biomass fuel furnace according to an embodiment of the present invention, showing the various internal components of the biomass fuel furnace.

[0031] Figure 2 This is a perspective view of the biomass fuel furnace on the right side according to an embodiment of the present utility model.

[0032] Figure 3 This is a side view of the combustion assembly and heat insulation cover of a biomass fuel furnace according to an embodiment of the present invention.

[0033] Figure 4 This is an exploded view of the combustion components and heat insulation cover of a biomass fuel furnace according to an embodiment of the present invention.

[0034] Figure 5This is a perspective view of the outer shell of a biomass fuel furnace according to an embodiment of the present utility model.

[0035] Figure 6 This is a schematic diagram illustrating the principle of air movement in the combustion assembly of a biomass fuel furnace according to an embodiment of the present invention via a bridging assembly.

[0036] Figure 7 This is an assembly diagram of a portion of the bridging assembly of a biomass fuel furnace according to an embodiment of the present invention.

[0037] Figure 8 This is an exploded view of a portion of the bridging assembly of a biomass fuel furnace according to an embodiment of the present invention. Detailed Implementation

[0038] The structure and beneficial effects of this application will be described in detail below with reference to the accompanying drawings.

[0039] Figure 1 This is an exploded view of the structure of a biomass fuel furnace according to an embodiment of this application. Figure 2 The assembly diagram is shown. The biomass fuel stove of this application can use biomass fuel, such as charcoal / pellets, as fuel. Figure 1 , Figure 2 As shown, a biomass fuel furnace 100 according to one embodiment of this application includes a cylindrical outer shell 6, the cylindrical outer shell 6 having an upper opening 61 and a lower opening, a support base plate 9 whose shape matches the lower opening to support the outer shell 6 and close the lower opening, for example, the support base plate 9 is fixedly connected to the lower end face of the outer shell 6; an inner cylinder 8 disposed within the outer shell 6; a burner assembly 120 disposed inside the inner cylinder 8; a bridging assembly 130 tightly engaged below the burner assembly 120; the bridging assembly includes a heat insulation cover 18 tightly engaged with the lower part of the burner assembly 120 to communicate with the combustion chamber, and a bridging member that radially engages with the outer shell 6 and the inner cylinder 8 through a first lateral opening 63 of the outer shell 6 and a second lateral opening 81 of the inner cylinder 8, such as... Figure 7 , Figure 8 As shown, the cable tray can be composed of a top plate 15, an arc-shaped sidewall 14 extending from one side to the other, and a bottom plate 13. The cable tray is tightly engaged with the lower opening 183 of the heat insulation cover 18 through the top plate opening 151 of its top plate 15. The cable tray has a side opening 141 in the radial direction as an airflow inlet. The cable tray also includes an ash collection assembly, which includes an ash tray 12 that fits into the cable tray and is aligned with the lower opening 183 of the heat insulation cover 18, and a door panel 11 disposed at the end of the ash tray 12 that can close the first lateral opening 63 after the ash tray 12 fits into the cable tray through the side opening 141. A handle 10 may also be provided on the door panel 11.

[0040] The tight fit can be an airtight fit, for example, by using dimensional design to allow for a smooth transition between components, or by providing seals such as sealing rings to ensure a tight fit between components. However, in some embodiments, an airtight fit is not required; it can be a fit that maintains airtightness as much as possible or minimizes air leakage.

[0041] Therefore, this application, which is more enclosed than traditional designs, provides an air supply channel from the housing to the combustion assembly, using the bridging component as an air extraction device. This air supply channel allows air to reach the burner assembly 120 from the side opening of the bridging component, through the top plate opening 151, the lower opening of the heat shield 18, and the upper opening, thereby optimizing the air supply efficiency. Figure 6 As shown.

[0042] The above design ensures airflow to the burner assembly 120 of the stove and minimizes leakage in the airflow channels. Air flows continuously from the airflow inlet of the bridging assembly to the combustion chamber, which achieves maximum combustion of biomass fuel in the combustion chamber and maintains high firepower and thermal efficiency.

[0043] In some embodiments, a cooktop assembly 110 is further included, disposed on the upper opening 61 of the housing 6. The cooktop assembly includes a ring 2 and one or more pot supports 1 disposed on the upper surface of the ring, wherein the outer edge region of the ring 2 engages with the upper portion of the housing 6. In some embodiments, the ring 2 may be configured and sized such that its inner edge region is positioned and tightly engaged with the upper portion of the burner assembly 120, while its outer edge region is positioned and tightly engaged with the upper portion of the housing 6, thereby closing the area between the housing 6 and the inner cylinder 8 by the ring 2 and the support base plate 9, allowing air to be supplied only from the air intake passage provided by the bridging assembly.

[0044] In some embodiments, a handle 17 may also be symmetrically fixed to the housing 6, and a pressure cap 7 may be fixed to the handle 17.

[0045] In some embodiments, such as Figure 4As shown, the burner assembly 120 can be integrally fixed inside the inner cylinder 6. The burner assembly 120 can consist of a fuel cylinder 3 and a grate 5 fitted to the bottom of the fuel cylinder 3. The fuel cylinder has a bottomless structure, filled with biomass fuel through an opening at the top. The fuel cylinder 3 and the bottom grate 5 define a combustion chamber where the biomass fuel can burn. The grate 5 can also serve as a component for integrally fixing the burner assembly 120 to the inner cylinder 6; for example, the outer periphery of the grate 5 can be fixed to the inner wall of the inner cylinder. The grate 5, as shown, is a grid structure, which can be a single integral component or a grid composed of intersecting rods. For example, each rod passes through a hole at the bottom of the fuel cylinder 3 to fit into the bottom of the fuel cylinder 3, and multiple intersecting rods form a grid. The grid can support the biomass fuel and allow ash to fall. It should be understood that the burner assembly 120 can also take other forms, such as the grate 5 integrally fitted to the bottom of the fuel cylinder 3. The fuel tank 3 can also be a structure with a bottom plate, for example, the bottom plate of the fuel tank has multiple holes, such as an array of circular holes, to allow air to enter and allow the ash after the biomass fuel is burned to fall.

[0046] The heat shield 18 may be an inverted truncated cone configuration, including a conical sidewall 182, an upper opening 181, and a lower opening 183. The upper edge of its sidewall 182 is tightly fitted to the burner assembly 120, for example, coupled to the grate 5 or fuel cartridge 3 via a coupling member 4. The coupling member 4 is, for example, an arc-shaped mounting plate, the lower part of which is fixed to the upper edge of the heat shield 18. The upper part of the mounting plate may provide a coupling configuration such as holes to couple to the portion of the grate 5 extending from the fuel cartridge 3, or to the outer wall of the fuel cartridge 3. The inverted truncated cone configuration allows the heat shield 18 to diffuse air from the bridge component into the burner assembly 120.

[0047] In order to tightly engage the heat shield 18, the top surface of the cable tray includes a top plate opening 151, which may have a configuration that matches the heat shield 18. The configuration and size of the cable tray are determined so that after fitting into the outer shell 6 and the inner cylinder, the top plate opening 151 tightly engages with the lower opening of the heat shield 18.

[0048] The ash tray 12 can be guided into the cable tray component. For this purpose, in some embodiments, the two side walls 14 of the cable tray component can each be provided with an ash tray guide rail 16. The ash tray guide rail 16 may include a protrusion 161 to ensure that the ash tray 12 slides into or out of the cable tray component as close as possible to the top surface of the cable tray component. The configuration and size of the ash tray 12 can be determined such that, as it engages with the cable tray component, the opening 151 of the top plate of the cable tray component is gradually closed by the ash tray.

[0049] Similarly, in some embodiments, the two side walls 14 of the cable tray component can each be provided with a dust collection tray guide rail 16. The dust collection tray guide rail 16 may include a protrusion 161 to ensure that the dust collection tray 12 slides into or out of the cable tray component as close as possible to the bottom surface of the cable tray component. The configuration and size of the dust collection tray 12 can be determined so that it fully fits into the cable tray component and aligns with the top plate opening 151 of the cable tray component. The above design allows for adjustment of the air inlet size.

[0050] A locking mechanism can also be provided between the ash collection tray guide rail 16 and the ash tray 12, such as spaced protrusions on the ash collection tray guide rail 16 and recesses on the bottom surface of the ash tray 12. This locking mechanism allows the ash collection tray guide rail 16 and the ash tray 12 to be positioned relative to the bridging assembly, thereby enabling relatively precise graded control of the opening size from the side opening 141 of the bridging assembly, and thus precise control of the firepower. When unlocked and fully locked into the stove assembly, the gas flow into the combustion chamber is minimized, resulting in low power output. This novel structural design allows for precise adjustment of the firepower.

[0051] The biomass fuel stove of this embodiment operates as follows: Biomass fuel is loaded into the combustion chamber and ignited. The heat generated by combustion is transferred to the cookware above primarily through convection, radiation, and conduction. Airflow enters the burner assembly 120 via the bridging assembly 130; specifically, the airflow is guided to the combustion chamber through the first side opening 63 on the outer casing 6. It is then guided by the closed bridging member and converges upwards through the top plate opening 151 to the heat shield 18. The converged airflow from the top plate opening 151 expands as it passes through the heat shield 18, and the air then burns with the fuel in the burner assembly 120 in the combustion chamber, generating heat energy for cooking. High power and low power, i.e., the firepower level, are controlled by adjusting the airflow reaching the combustion chamber. For high power, the ash collection assembly 140 is locked entirely in the open position on the outer casing 6, thereby ensuring that the top plate opening 151 is not obstructed, allowing maximum airflow. For low power, the ash pan 12 is fully engaged into the bridging assembly 130, thereby minimizing the airflow to the combustion chamber to achieve low power. Multiple intermediate power levels can also be obtained by adjusting the position of the ash pan relative to the bridge components.

[0052] The cross-section of the outer shell 6 is not limited and can be circular, elliptical, or polygonal.

[0053] like Figure 5 As shown, the outer casing 6 may also include straight or angled vents, for example formed by cutting, forming or other manufacturing processes, to form an auxiliary ventilation path to cool the exterior of the furnace and balance the temperature of the materials in the combustion zone.

[0054] Specifically, the upper part of the sidewall of the outer casing 6 may be provided with a set of first angle slots 64, and the lower part with a set of second angle slots 65 as ventilation openings. The ventilation openings on the sidewall of the outer casing 6 allow airflow into the annular region between the inner cylinder 6 and the outer casing 8, increasing the rate of heat transfer from the outer casing 6 to the surrounding environment, thereby cooling the outer casing 6 and maintaining a lower temperature. Thus, when a user accidentally touches the sidewall, these ventilation openings ensure that the surface temperature of the sidewall is maintained at a relatively low temperature, thereby enhancing user safety. These ventilation openings also allow airflow to contact the inner cylinder 8, helping to maintain a lower surface temperature of the inner cylinder 8, thereby extending its durability. Furthermore, these ventilation openings enhance the overall aesthetic appeal of the stove, making it a unique selling point for customers and thus more visually attractive. In some embodiments, the design of the auxiliary ventilation path can be modified according to local climatic conditions (e.g., changing the number, angle, and / or size of the first and second angle slots) to optimize airflow and combustion efficiency.

[0055] In some embodiments, the inner cylinder can be a steel inner cylinder, with the steel inner cylinder 8 serving as a steel stillage for optimizing the stove's materials. Traditional biomass fuel stoves use excessive amounts of stainless steel or other materials to achieve high performance, while the biomass fuel stove design of this application introduces a steel stillage structure, significantly reducing the overall amount of stainless steel used in the stove, while maintaining or exceeding the performance of existing high-efficiency stoves. This not only reduces manufacturing costs but also makes the stove lighter, more sustainable, and more cost-effective. The cross-section of the inner cylinder can be circular, polygonal, elliptical, etc., without limitation.

[0056] In some embodiments, the heat shield 18 may be made of different materials to meet various cooking applications or thermal performance requirements. In some embodiments, the heat shield 18 is made of stainless steel, a design that replaces ceramic cotton insulation material which poses a health risk to users, allowing the biomass fuel stove of this application to maintain structural durability while ensuring effective heat retention and reflection.

[0057] In some embodiments, an automatic airflow management device may be introduced to drive the ash collection assembly, thereby automatically adjusting the gas flow settings of the stove according to cooking needs and temperature readings. In some embodiments, the automatic airflow management device may also provide different airflow configurations depending on the specific fuel used.

[0058] In some embodiments, the adjustable burner assembly 120 is structurally designed to handle fuels of different types, sizes, and combustion characteristics.

[0059] In some embodiments, a fuel feeding mechanism may also be provided that allows users to choose to manually load or use an automatic feeder to load biomass fuel into the burner assembly 120.

[0060] In contrast, most biomass fuel stoves use ceramic materials for insulation, and they may also use double insulation covers made of galvalume or stainless steel. The biomass fuel stove in the embodiments of this application, however, uses an inner cylinder 6 as a single insulation cover.

[0061] Traditional biomass fuel stoves have a completely enclosed metal body with no ventilation openings, which allows the stove body to reach high temperatures, posing a danger to users. Our biomass fuel stove design incorporates mechanically designed angled ventilation openings, optimizing airflow for external cooling and thermal balance, thereby improving user safety and durability.

[0062] Airflow management: Traditional stoves use an open airflow structure, while this design uses a partially or completely closed airflow structure to guide a continuous airflow, thereby improving combustion efficiency.

[0063] Combustion efficiency: The structured airflow in this design generates a natural suction effect, resulting in more efficient combustion and controlled slow cooking, whereas traditional stoves rely on less controlled airflow.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biomass fuel stove (100), characterized in that, include: A main body includes a housing (6) with a lower opening, which is supported and sealed by a supporting base plate (9); The inner cylinder (8) is disposed inside the outer shell (6); The burner assembly (120) is disposed within the inner cylinder (8); A bridging assembly (130) disposed below the burner assembly (120) provides an air intake passage from a side opening of the housing (6) to the bottom of the burner assembly (120); as well as An ash collection assembly (140) is movably mounted on the bridging assembly (130), the ash collection assembly (140) being configured to be movable so that the air intake passage can be varied between fully open and fully closed.

2. The biomass fuel stove according to claim 1, characterized in that: The bridging assembly (130) includes a heat shield (18) that engages tightly with the lower part of the burner assembly (120) to communicate with the combustion chamber, and a bridge member that radially engages with the outer shell (6) through a first lateral opening (63) and a second lateral opening of the inner cylinder (8) in the outer shell (6) and the inner cylinder (8); the bridge member is attached, fixed or connected to the side wall of the outer shell (6) by welding or non-welding.

3. The biomass fuel furnace according to claim 2, characterized in that: The bridge frame consists of a top plate (15), a bottom plate, and a side wall located between the top plate and the bottom plate.

4. The biomass fuel stove according to claim 3, characterized in that: The inner surface of the side wall of the bridge component is provided with a dust collection tray guide rail (16), and the dust collection assembly (140) cooperates with and is guided by the dust collection tray guide rail.

5. The biomass fuel stove according to claim 4, characterized in that: The ash collection tray guide rail is equipped with a locking mechanism. The ash collection component (140) cooperates with the locking mechanism so that the position of the ash collection component (140) is locked by the locking mechanism.

6. The biomass fuel stove according to claim 1, characterized in that: It also includes a furnace top assembly (110) disposed at the upper opening of the outer casing (6), aligned with and engaging with the side wall of the outer casing (6), the furnace top assembly (110) having one or more pot supports at its upper end; the upper part of the combustion chamber engaging with the opening of the furnace top assembly (110).

7. The biomass fuel stove according to claim 1, characterized in that: The burner assembly (120) is fixedly connected to the inner cylinder (8) by welding or non-welding. The burner assembly (120) includes a fuel cylinder (3) and a grate (5). The fuel cylinder (3) includes a lower part, and the grate is engaged with the lower part of the fuel cylinder (3). The grate (5) partially penetrates the side wall of the fuel cylinder (3).

8. The biomass fuel stove according to claim 7, characterized in that: The upper part of the fuel cylinder (3) has an outwardly turned edge that overlaps with the upper edge of the inner cylinder (8).

9. The biomass fuel stove according to claim 2, characterized in that: The bridging component (130) and / or the ash collection component (140) and / or the supporting base plate (9) are integrally formed components.

10. The biomass fuel stove according to claim 9, characterized in that: The ash collection assembly (140) includes an ash tray (12) that fits into the cable tray and is aligned with the lower opening (183) of the heat insulation cover (18) and a door panel (11) disposed at the end of the ash tray (12) and capable of closing the first lateral opening (63) after the ash tray (12) fits into the cable tray from the side opening (141). The door panel (11) is also provided with a handle (10).

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