Abstract: A fume extraction device for the downward extraction of cooking fumes comprises at least one inflow opening for the inflow of the cooking fumes, and at least one fan for suctioning the cooking fumes at the at least one inflow opening, such fan having a fan propeller that is mounted so as to be rotatable about a rotation axis, wherein the rotation axis is oriented so as to be inclined in relation to a horizontal plane and to a vertical direction.

Abstract: An apparatus for reducing undesired change in cooking valve configuration. An appliance may include one or more guard members. The one or more guard members may be adjacent one or more control knobs operably connected to one or more valves. The guard member may overlap one or more portions of the outer periphery of the control knob extending from the control panel in a variety of applications.

Abstract: The Spark Ignition Flamethrower may include a plastic or composite housing, a heat shield, fuel manifold, fuel pump, fuel nozzle, electrode, high voltage coil, and control module. The Spark Ignition Flamethrower ignites a fuel using a spark generated by the electrodes without the need for an initial flame. The electrodes may be supplied with high enough voltage to generate a plasma which results in an increased conductive area that increases the efficiency of lighting the fuel. The Spark Ignition Flamethrower may also be oriented in multiple configurations due to the adaptable fuel manifold which is capable of receiving fuel from various fuel sources.

Abstract: A light-splitting reflection high-concentration photovoltaic photothermal integrated cavity receiver includes a photothermal assembly and a photovoltaic assembly. The photothermal assembly includes a high-temperature heat storage system, a low-temperature heat storage system, a plurality of heat exchange tube bundles defining a reflective cavity, and an ultraviolet and visible light reflective film arranged on an inner surface of the reflective cavity. The plurality of heat exchange tube bundles are communicated to form a heat collection circuit, and the heat collection circuit has an input end connected with the low-temperature heat storage system, and an output end connected with the high-temperature heat storage system. The photovoltaic assembly is arranged at a focus of the reflective cavity, and includes a near-infrared reflective film, a high concentration photovoltaic integrated receiver and a concentration photovoltaic cooler stacked sequentially along an incident direction of light.

Abstract: In one embodiment, a burner for use in synthesis gas production includes multiple burner units each configured to deliver fuel and oxygen to a combustion chamber, each burner unit including an inner outlet pipe configured to deliver fuel and an outer outlet pipe configured to deliver oxygen, the outer outlet pipe concentrically surrounding the inner outlet pipe.

Abstract: A fireplace having a plurality of faux logs sequentially lit using a single ignitor and flame jumping between the faux logs. The ignitor ignites a first faux log, which after a time period ignites a neighboring second faux log. After another time period, the second faux log ignites a neighboring third faux log and so on. The sequentially lighting of the faux logs creates an aesthetically pleasing lighting sequence, and also a pleasing sequential lighting sound. The faux logs are individually supported by a respective conduit over media disposed on an ember bed and which individually supplies gas to the respective faux log.

Abstract: A safety switch for use in a gas combustor is disposed on a gas combustor having a rear opening, and a press button is arranged adjacent to the rear opening; the safety switch includes a locking member and a swing arm, the locking member has a main body sleeved with a longitudinal spring, and a locking hook protruded from a location towards a latching hook arranged above the swing arm, wherein a transversal spring is disposed between an extending sheet below the swing arm and the inner wall of the gas combustor; when the locking member is not pressed, the locking hook is abutted against the latching hook, a locking bolt protruded from a bottom end of the press button is abutted against the locking hook, so that the press button is unable to be pressed, thereby forming a locked status.

Abstract: A lighter includes (a) a lighter body for storing fuel; (b) a lighter head extending upwardly from the lighter body to an outlet of the head for directing flow of the fuel toward the outlet; (c) an integrated ignition system for selectively releasing and igniting the fuel to produce a flame projecting along a flame path from the outlet; and (d) a replaceable flame-coloring insert including an insert body removably mounted to the lighter head adjacent the outlet. The insert body treated with a flame colorant positioned in the flame path for coloring the flame when heated.

Abstract: Individual grates and a multi-grate system for a cooking range include construction of the tangs and nubs of each grate are aligned with each other in a manner providing a non-contiguous surface along a common plane. The common plane is provided by the uppermost surfaces of the tangs and nubs upon which the bottom of a cooking vessel (e.g., stock pot, skillet, saucepan, griddle, etc.) rests, with the relative position providing that a five-inch diameter bottom surface of the cooking vessel will contact the common plane sufficiently to substantially prevent tipping.

Abstract: A telescopic wood-fired pizza oven designed for portability and space efficiency. It consists of a bottom annular ring with an aperture for wood insertion, an inner ledge supporting a circular grill, and a top annular ring with L-shaped receivers to securely lock onto the bottom ring. The top annular ring defines an aperture for pizza insertion with a top door that opens vertically. The top ring also features handles for easy handling and a circular top with a central aperture for ventilation. A folding circular ceramic cooking platform is placed on the grill for optimal pizza cooking. This design allows the oven to collapse into a compact form, making it ideal for storage in recreational vehicles and for transportation to various outdoor settings. The invention provides an authentic wood-fired cooking experience in a portable, easy-to-store format.

Abstract: The invention relates to a furnace for performing an endothermic process, the furnace including a plurality of process tubes containing a catalyst for converting a gaseous feed, wherein the process tubes are arranged in rows within the furnace, each row of process tubes thereby defining a process tube row, a plurality of inner burners arranged in rows, each row of inner burners being arranged between and parallel to process tube rows, thereby defining an inner burner row, and a plurality of outer burners arranged in rows, each row of outer burners being arranged between and parallel to a process tube row and a furnace wall, thereby defining an outer burner row. A number of burners of an outer burner row is smaller than a number of burners of an inner burner row. The invention also relates to a process for operating a furnace for performing an endothermic process.

Abstract: An oven appliance or rack assembly may include a rack frame and a non-permeable cook plate. The rack frame may extend along a transverse direction between a front end and a rear end. The rack frame may define a permeable support surface. The non-permeable cook plate may be selectively disposed on the rack frame. The non-permeable cook plate may include a rear nose rotatably attached to the rack frame at the front end.

Abstract: Processes and systems for improvements on the efficiencies of convection ovens utilizing exhaust heat recuperation in the form of heat exchangers and premixed combustion systems, and a combination thereof. The heat exchangers and premixed combustion systems allow for increased efficiency of use of fuel and gaseous mixtures within convection oven cavities for improved heating capabilities and decreased efficiency losses.

Abstract: The present disclosure provides a method and a system for denitrogenation combustion and CO2 capture and utilization in a gas boiler.

Abstract: The invention relates to enclosed solar parabolic trough reflector systems for thermal heat generation that can ultimately be used in various applications. The system includes a modular dual arch building design with a transparent building envelope and a reflector assembly connected within the building through a bearing assembly. The system is particularly suited for solar heat collection in harsh environment.

Abstract: A hand-carryable apparatus to heat tar into a flowable state and dispense the tar includes: a pot with pivotable handle, a shroud with a handle, and a heat chamber, which may all be cylindrical. The shroud extends from a bottom portion of the pot. The heat chamber includes: a base wall, a plurality of baffles, and a cylindrical side wall that slidably receives a portion of the shroud in a clearance fit. An opening in the heat chamber side wall receives the flame end of a torch. Three or more baffles protrude upwardly from the base wall to distribute the heat provided by the torch: a first baffle positioned distally from the opening and oriented substantially perpendicular thereto; and second and third baffles positioned between the first baffle and the opening, and oriented at an acute angle to the first baffle, and symmetrically offset from the axis of the opening.

Abstract: A candlewick includes a flotation device, a wick, and a bracket configured to position a first portion of the wick above a waterline of the flotation device and to position a second portion of the wick below a waterline of the flotation device.

Abstract: A burner system, preferably including input plumbing, a combustion region, and an exhaust section. In some embodiments, the burner system can include, be attached to, be configured to couple with, and/or be otherwise associated with a thermionic energy converter (TEC). A method of burner system operation, preferably including operating the burner system in a combustion mode and optionally including operating a TEC.

Abstract: A forced airflow drying apparatus includes a body including a pair of air inlets to receive inlet air which is channeled to an upstream side of a filter unit, a pair of body airflow generators to generate a first forced airflow, each body airflow generator having a first end and a second end, where the first end of each body airflow generator is opened to a downstream side of the filter unit, a pair of thermoelectric devices configured to control a temperature of the first forced airflow, and a first air outlet, in communication with the second end of each body airflow generator, to receive the forced airflow from the body airflow generators and to expel the forced airflow out of the body.

Abstract: The invention relates to a burner cover insulation device for shielding a burner cover from a boiler burner, the device comprising a cover layer comprising a heat resistant inorganic fibrous material and having a first outer peripheral edge; a support layer providing mechanical strength to the device and having a second outer peripheral edge that at least extends to the outer peripheral edge of the cover layer; and a filling material forming an insulating layer between the cover layer and the support layer, wherein a through hole extends through the cover layer and the support layer. The invention furthermore relates to a method for manufacturing such a device.