Abstract: A magnetization device includes an outer casing, a base, a rotatable hood, an object-carrying seat, and a drive mechanism. The rotatable hood includes a receiving space. The rotatable hood has a circumferential wall that includes a pair of magnets mounted thereto, with one N pole and one S pole of the magnets being pointing toward the receiving space of the rotatable hood to induce magnetic lines of force and a magnetic field therebetween. The object-carrying seat is disposed in the receiving space of the rotatable hood to support a magnetized object. The drive mechanism drives the rotatable hood to rotate around and outside the magnetized object, such that the magnetized object is kept stationary and the magnets, and thus the magnetic lines of force and the magnetic field, are driven by the rotatable hood to rotate around the magnetized object.

Abstract: A wick-burning and ventilation and flow-guide structure includes a wick tray, a heat isolation cover, and a wick. The heat isolation cover has support sections that are extended to form protrusion sections insertable into and mounted in mounting holes of the wick tray for secured combination and easy separation. The wick tray and the heat isolation cover provide a dual-layered heat isolation effect and also achieve an effect of heat dissipation. The wick is made of a metallic or ceramic material and has a surface over which a flame-blocking heat-isolating sleeve is fit to prevent downward spreading of flaming. A wind-shielding hood is provided on the fuel container to define therebetween a flow-guide opening for smooth ingress of air, preventing flaming from jumping.

Abstract: A magnetization device includes an outer casing, a base, a rotatable hood, an object-carrying seat, and a drive mechanism. The rotatable hood includes a receiving space. The rotatable hood has a circumferential wall that includes a pair of magnets mounted thereto, with one N pole and one S pole of the magnets being pointing toward the receiving space of the rotatable hood to induce magnetic lines of force and a magnetic field therebetween. The object-carrying seat is disposed in the receiving space of the rotatable hood to support a magnetized object. The drive mechanism drives the rotatable hood to rotate around and outside the magnetized object, such that the magnetized object is kept stationary and the magnets, and thus the magnetic lines of force and the magnetic field, are driven by the rotatable hood to rotate around the magnetized object.

Abstract: A wick-burning and ventilation and flow-guide structure includes a wick tray, a heat isolation cover, and a wick. The heat isolation cover has support sections that are extended to form protrusion sections insertable into and mounted in mounting holes of the wick tray for secured combination and easy separation. The wick tray and the heat isolation cover provide a dual-layered heat isolation effect and also achieve an effect of heat dissipation. The wick is made of a metallic or ceramic material and has a surface over which a flame-blocking heat-isolating sleeve is fit to prevent downward spreading of flaming. A wind-shielding hood is provided on the fuel container to define therebetween a flow-guide opening for smooth ingress of air, preventing flaming from jumping.

Abstract: A compound eco-friendly stove includes a main body, a baking tray support, a baking tray, a butterfly style burner assembly, a grill grate, a grease guide plate, a grease pan, and a lift handle. The main body is provided, on a top, with a first cover and a second cover, which define therebetween an airflow passage. The baking tray support supports the baking tray thereon and is formed with multiple through holes at two sides of the baking tray. The butterfly style burner assembly, the grill grate, the grease guide plate, and the grease pan are disposed sequentially under the baking tray support. An upper compartment oven is formed between the baking tray support and the first and second covers and a lower compartment grill is formed between the butterfly style burner assembly and the grill grate.

Abstract: A compound eco-friendly stove includes a main body, a baking tray support, a baking tray, a butterfly style burner assembly, a grill grate, a grease guide plate, a grease pan, and a lift handle. The main body is provided, on a top, with a first cover and a second cover, which define therebetween an airflow passage. The baking tray support supports the baking tray thereon and is formed with multiple through holes at two sides of the baking tray. The butterfly style burner assembly, the grill grate, the grease guide plate, and the grease pan are disposed sequentially under the baking tray support. An upper compartment oven is formed between the baking tray support and the first and second covers and a lower compartment grill is formed between the butterfly style burner assembly and the grill grate.

Abstract: A heater structure includes a heater body including a burner connected to a valve switch. A pilot fire assembly is covered by a protective cover that has ventilation holes. A switch unit includes an ignition switch, a shut-down switch, an ignition operator, and a shut-down operator. The ignition operator and the shut-down operator are structured to provide a swingable arrangement. The ignition operator may be operated to contact and press the fuel gas valve rod and the ignition switch to open the valve switch for supply fuel gas to the burner and to activate an ignition circuit to cause successive shootings of an ignition pin of the pilot fire assembly to set a flame on the burner. The shut-down operator is operated to contact and press the shut-down switch, so as to cut off a signal of the thermocouple and thus cut off the supply of the fuel gas.

Abstract: A heater structure includes a heater body including a burner connected to a valve switch. A pilot fire assembly is covered by a protective cover that has ventilation holes. A switch unit includes an ignition switch, a shut-down switch, an ignition operator, and a shut-down operator. The ignition operator and the shut-down operator are structured to provide a swingable arrangement. The ignition operator may be operated to contact and press the fuel gas valve rod and the ignition switch to open the valve switch for supply fuel gas to the burner and to activate an ignition circuit to cause successive shootings of an ignition pin of the pilot fire assembly to set a flame on the burner. The shut-down operator is operated to contact and press the shut-down switch, so as to cut off a signal of the thermocouple and thus cut off the supply of the fuel gas.

Abstract: Disclosed is a temperature homogenization, protection, and grease guide structure of a barbecue grill, including at least one burner, a grate, and a grease guide and temperature barrier board. The burner includes a heat generation section and is arranged in an inclined, upward-facing manner in a barbecue grill. The grate is arranged in a top opening of the barbecue grill. The grate includes ribs that are provided with at least one temperature homogenization protection section, which is located above and corresponds to the heat generation section. The grease guide and temperature barrier board is configured in an M-shape and is arranged below the burner.

Abstract: Disclosed is a temperature homogenization and protection structure of a barbecue grill, including at least one burner and at least one grate. The burner is arranged in the barbecue grill and is provided, on a top side thereof, with a protector board. The protector board includes a plurality of through openings. The grate is arranged in a top opening of the barbecue grill and the grate includes a plurality of ribs. The ribs are provided with at least one temperature homogenization protection section and at least one temperature homogenization sections. The temperature homogenization protection section corresponds in position to the burner and the protector board.

Abstract: Disclosed is a temperature homogenization, protection, and grease guide structure of a barbecue grill, including at least one burner, a grate, and a grease guide and temperature barrier board. The burner includes a heat generation section and is arranged in an inclined, upward-facing manner in a barbecue grill. The grate is arranged in a top opening of the barbecue grill. The grate includes ribs that are provided with at least one temperature homogenization protection section, which is located above and corresponds to the heat generation section. The grease guide and temperature barrier board is configured in an M-shape and is arranged below the burner.

Abstract: A double-screened gas heater includes an outer screen, an inner screen, and a gas burner. The outer screen is of a vertically erected hollow configuration ahs includes a plurality of through holes formed therein. The inner screen is of a vertically erected hollow configuration and is disposed inside the outer screen. The inner screen includes a plurality of through apertures formed therein. The gas burner is arranged in a bottom of the inner screen and includes a plurality of burner ports. The burner ports are arranged in side the inner screen. The outer screen and the inner screen collectively form an inner/outer double screen arrangement, which allows for projection of the thermal energy to the surroundings in the form of heated air and thermal radiation so as to achieve an optimum effect of heating and warming. The outer screen provides protection of users against burns by high temperature.

Abstract: A quick removal fitting includes a female coupling part, a male coupling part, and a retention clip. The female coupling part includes a flange. The male coupling part (which can be for example a water pipe) has an end forming a divergent opening and includes a protrusion ring mounted thereto and a movable ring movably arranged thereon. The retention clip is made of an elastic material and is selectively set to clamp, in a removable manner, the flange of the female coupling part and the movable ring together. The retention clip that is set to removably clamp the female coupling part and the male coupling part together at a connection therebetween helps simplify assembly/disassembly and replacement. The movable ring that is movably arranged on the male coupling part helps eliminate a mounting operation involving welding.

Abstract: Disclosed is a heat exchanger tube for transferring heat due to combustion of a combustor toward an exterior, the heat exchanger tube comprising: an insertion body which is configured by folding up three or more sectors made of aluminum through extrusion molding; and an accommodation body which is configured to accommodate the insertion body so that an inner circumferential surface can be in contact with an outer circumferential surface of the insertion body, thereby maximizing a surface area and improving an efficiency of transferring heat.

Abstract: An overfill prevention device which includes a first tubular member, a cylindrical piston fitted within the first tubular member, a second tubular member having a cylindrical recess open, a plug arranged within the second tubular member, a float rod having a cam plate, a float connected with a lower end of the float rod, a valve body having a lower end engaged with the first tubular member, a pinion pivotally connected to the second tubular member by the pin, a toothed rack meshed with the pinion and engaged with the second tubular member, a control rod having an upper end extending into the valve body and a lower end secured to the toothed rack, a first magnet mounted at the upper end of the control rod, and a gauge mounted on the valve body and provided with a second permanent magnet and a needle operatively connected with the second magnet.

Abstract: Disclosed is a heat exchanger tube having a flattened pipe having two non-flattened ends connected with a first opening and a second opening. A plurality of first half-slacking narrows and a plurality of second half-slacking narrows are arranged in an interlaced zigzag pattern such that a winding flow channel is formed inside the flattened pipe to increase heat exchange efficiency. In a preferred embodiment, each of the first half-slacking narrow and the second half-slacking narrow consists of a pair of adjacent indentations formed on the two opposing flattened surfaces of the flattened pipe respectively to achieve a unit body structure of the flattened pipe.

Abstract: A water heater with enhanced thermal efficiency includes a heat exchange tank, a water tank that houses the heat exchange tank and shields and isolates the heat exchange tank with a surrounding curtain of water flowing therethrough, a burner, and a blower. The burners is connected to a combustible gas outlet opening of the blower and extends from a central base of the heat exchange tank up into the heat exchange tank to form a combustion chamber within an internal cavity of the heat exchange tank. A plurality of radially arranged flame tubes extends downward from a top corner of the internal cavity and is enclosed by the water flowing inside the water tank. The flame tubes are extended to communicate an exhaust gas discharge tube set circumferentially of and separated from the base for discharging gas. Water inlet and outlet are respectively provided to the water tank.

Abstract: Disclosed is a cooking grid that is positionable on a top opening of a grill. The grid includes a frame, a plurality of bars, and a shield section. The bars and the shield section are arranged inside the frame, and the bars form therebetween a plurality of openings. The shield section is arranged to correspond in position to a burner unit set up inside the grill, whereby when the cooking grid receives foodstuffs positioned thereon for grilling, the shield section provides a shielding function that prevents liquid substances of grease and juice of the grilled foodstuffs and sauce applied to the foods from dropping on the burner unit to cause flaming and smoke, and thermal energy emitting from the burner unit is directly applied to the cooking grid to thereby provide functions of health, environmental protection, and energy conservation.

Abstract: A smoke-free grilling method includes (1) arranging a heating unit inside a grill in such a way that the heating unit is not shielded by any shade located above; (2) combining a grilling grid with a shielding section and arranging the grid on a top opening of the grill; and (3) setting the shielding section to correspond in position to the heating unit arranged inside the grill, whereby when the grid receives foodstuff positioned thereon for grilling, the shield section provides a function of shielding so that liquid substances, such as grease and juice of the grilled foodstuffs and sauce applied to the foodstuffs, are prevented from dropping onto the heating unit to cause flaming or smoke, and true smoke-free grilling is achieved and functions of health, environmental protection, and energy conservation are also achieved.

Abstract: A smoke-free roaster includes a roaster body having a bottom to which a grease collection tray is mounted, a roasting grating mounted on a top of the roaster body, and a heating structure mounted inside the roaster body. The roasting grating includes grating bars, between which solid sloping plates are formed and gently inclined downward from front and rear side edges in a direction along the grating bars toward a central portion of the roaster body and the heating structure comprises reflector assemblies, which includes heating modules respectively mounted below the sloping plates and respectively receive therein carbon fiber heating tubes that irradiate and thus heat the roasting grating and comprise electrical terminals forming power supply connection modules. The sloping plates increase the surface area on the two opposite sides of the roaster body for heat transfer and heat accumulation thereby raising roasting temperature on the two side portions.