A coil for a personal vaporizer includes a cup. The heating element for the cup is disposed outside of the cup interior volume and selectably heats the outside surface of the cup through resistance heating. The quartz glass composing the cup conducts heat from the heating element to a concentrate within the cup to boil the concentrate. The cup may be contained within a housing. The housing may retain the cup and may hold the heating element in direct physical contact with the cup.

A heater comprises an inlet for a medium to be heated, an outlet for the medium, and at least two cassettes. Each cassette comprising a first plate comprising a first main surface and a second plate comprising a second main surface. The first and second plates are attached to each other and enclose a respective flow channel for the medium. The cassettes are arranged beside each other with a space between the cassettes for an electric heating element. The electric heating element abuts the first main surface of one of the cassettes and the second main surface of the adjacent cassette. The heater comprises two distance members extending between the one cassette and the adjacent cassette. The distance members define the space.

A device (100, 200, 1100, 2100) converts electricity into heat. A first flat winding support (110, 130, 210a, 210b, 230a, 230b, 310a, 310b, 330a, 330b, 510, 610, 630, 710, 1110, 1130, 2110, 2130) including electrically insulating material, has a first electric heating element (140, 150, 240a, 240b, 250a, 250b, 340a, 340b, 350a, 350b, 540, 640, 650, 740, 750) wound thereon. The first flat winding support with wound first electric heating element is inserted into a housing (190, 290, 1190, 2190) electrically insulated against the housing. A second flat winding support, including electrically insulating material, has a second electric heating element (140, 150, 240a, 240b, 250a, 250b, 340a, 340b, 350a, 350b, 540, 640, 650, 740, 750), which is galvanically separated from the first electric heating element, wound thereon. The second flat winding support with wound second electric heating element is inserted into the housing electrically insulated against the housing.

An anti-icing system for an aircraft surface is disclosed. In various embodiments, the anti-icing system includes, a plurality of conductive heating elements distributed about and in contact with the surface and a signal source configured to activate and deactivate an alternating current supplied to each one of the plurality of conductive heating elements in an ordered pattern.

An electrical heating device for mobile applications, includes a substrate and a heat-conducting layer formed on the substrate. The heat-conducting layer has at least one heat-conducting track that is arranged on the substrate, and the heat-conducting track is structured such that a multiplicity of track sections, separated from one another by insulating gaps, is formed. The heat-conducting track has at least one deflection section at which the heat-conducting track is deflected and which is arranged between a first and a second track section, wherein the first and the second track section have a smaller curvature in comparison with the deflection section. The heat-conducting track in the first track section or in the deflection section branches into at least two branch tracks separated from one another by one or more branch insulating gaps. The branch tracks meet up again in the second track section or in the deflection section.

The application relates to food preparation apparatus with an electrical heating device comprising at least two electrical PTC thermistors for heating a food in a food preparation space, wherein the electrical PTC thermistors are electrically connected in parallel. The parallel-connected PTC thermistors are electrically connected to each other by one or more electrical bridges. Using designs in accordance with the present application, local heating during the preparation of a food may be avoided.

Provided is a heater that is excellent in heat equalizing property even when being narrow in a sweep direction. Also provided are a fixing device, an image-forming device, and a heating device each including such a heater. A heater is configured to heat an object to be heated in such a manner that at least one of the object to be heated and the heater is swept with the heater disposed opposite the object to be heated. The heater includes a base having a rectangular shape and a plurality of heating cells each independently receiving power supply, the heating cells being disposed on the base and arranged in a longitudinal direction of the base. Each of the heating cells includes a plurality of lateral wires extending in substantially parallel with the longitudinal direction of the base and a plurality of oblique wires tilted relative to the lateral wires.

An isothermal cooking plate assembly is formed from a first plate of high thermal conductivity material having a back surface and an oppositely disposed top cooking surface. One or more heater circuit assemblies are disposed on the first plate back surface for forming a composite having a back surface. A controller is in electrical connection with the heater circuit assemblies for controlling temperature of the first plate of high thermal conductivity material. The first plate can be Aluminum Type 1100 or Aluminum Type 6061. The first plate can be a laminate formed from a clad bottom metal layer and clad top cooking surface metal layer, where the clad layers formed from the same material and having about the same thickness. The clad material can be austenitic stainless steel. A second plate of low thermal conductivity material can be attached to the composite back surface of first plate.

An elongate metallic heater element is provided for an aerosol-generating device, the heater element extending between proximal and distal ends, the proximal end configured for mounting to the device for electrical communication with the device, the heater element including either or both of: a plurality of surface notches formed on a surface of the heater element, and a plurality of sub-surface cavities defined beneath the surface of the heater element, at least some of the plurality of surface notches and the sub-surface cavities of the heater element are provided in an inner region of the heater element extending between the proximal end and 33% of a length of the heater element relative to the proximal end, and in which at least 40% by volume of all of the plurality of surface notches and the sub-surface cavities of the heater element are provided in the inner region.

A heat treatment device includes: a heating plate configured to support and heat a substrate on which a resist film is formed; a chamber configured to cover a processing space above the heating plate; a gas supply configured to supply a gas into the chamber along a gas flow path connected to an inside of the chamber, the gas flow path beginning from an outer periphery of the heating plate and extending along an upper surface of the heating toward an end portion on an outer periphery of the substrate; and an exhaust port configured to evacuate inside of the chamber through exhaust holes that are formed above the processing space and open downwards.