This disclosure refers to a method for confectioning resistors that each comprise a PTC ceramic plate and metallic electrode layers covering opposite faces of the ceramic plate, said method comprising the following steps: measuring an electrical resistance of a resistor to be confectioned by applying an electrical potential to one of electrode layers such that an electric current flows from one of the electrode layers through the ceramic plate to the electrode layer on the opposite face of the ceramic plate, comparing the measured resistance to a target resistance, and removing, if the measured resistance is lower than the target resistance, a section of at least one of the electrode layers. This disclosure also refers to such a resistor and a heating device comprising such resistors.

This disclosure refers to a method for confectioning resistors that each comprise a PTC ceramic plate and metallic electrode layers covering opposite faces of the ceramic plate, said method comprising the following steps: measuring an electrical resistance of a resistor to be confectioned by applying an electrical potential to one of electrode layers such that an electric current flows from one of the electrode layers through the ceramic plate to the electrode layer on the opposite face of the ceramic plate, comparing the measured resistance to a target resistance, and removing, if the measured resistance is lower than the target resistance, a section of at least one of the electrode layers. This disclosure also refers to such a resistor and a heating device comprising such resistors.

An aerosol-generating system may comprise a releasably connectable capsule and vaporizing unit. The capsule may comprise a reservoir for containing an aerosol-generating substrate, an opening in fluidic communication with the reservoir, and a valve configured to control a flow of the aerosol-generating substrate from the reservoir through the opening. The valve may comprise one or more resilient closing members biased towards a closed position. The vaporizing unit may comprise a transfer element and a heating element disposed in a housing. The heating element is configured to heat the aerosol-generating substrate in the transfer element. The vaporizing unit may also comprise an elongate element configured to engage with the valve to deflect the one or more resilient closing members from the closed position to an open position so as place the transfer element in fluidic connection with the reservoir when the capsule is connected to the vaporizing unit.

An aerosol-generating system may comprise a releasably connectable capsule and vaporizing unit. The capsule may comprise a reservoir for containing an aerosol-generating substrate, an opening in fluidic communication with the reservoir, and a valve configured to control a flow of the aerosol-generating substrate from the reservoir through the opening. The valve may comprise one or more resilient closing members biased towards a closed position. The vaporizing unit may comprise a transfer element and a heating element disposed in a housing. The heating element is configured to heat the aerosol-generating substrate in the transfer element. The vaporizing unit may also comprise an elongate element configured to engage with the valve to deflect the one or more resilient closing members from the closed position to an open position so as place the transfer element in fluidic connection with the reservoir when the capsule is connected to the vaporizing unit.

A heated probe is provided that cooks food from the inside-out in order to help reduce cooking times. The probe may be used within an oven, or it may be used as a standalone cooking source. The probe may include heat control, such that foods may be cooked at a low temperature for extended periods of time without drying out the food. Such heat control may help keep proteins tender to produce a result similar to proteins cooked in a sous vide style.

A heated probe is provided that cooks food from the inside-out in order to help reduce cooking times. The probe may be used within an oven, or it may be used as a standalone cooking source. The probe may include heat control, such that foods may be cooked at a low temperature for extended periods of time without drying out the food. Such heat control may help keep proteins tender to produce a result similar to proteins cooked in a sous vide style.

A PTC heating assembly has a plurality of PTC elements and electric strip conductors between which the PTC elements are provided and which are electrically conductively connected to the PTC elements The PTC heating assembly also includes a frame which forms at least one receptacle for the PTC elements and which is provided between the strip conductors. For adjusting the heating power of the PTC heating assembly, at least two strip conductors on at least one side of the PTC elements are electrically conductively connected to PTC elements which deviate from one another.

An extract vaporizer has been disclosed. The vaporizer includes an adjustable-volume reservoir adapted to contain extract. The adjustable-volume reservoir is generally cylindrical. The vaporizer further includes a vaporization chamber. The reservoir and vaporization chamber are connected by a port. The vaporizer further includes a heating element proximal to the vaporization chamber. The vaporizer further includes a conduit adapted to ventilate the vaporization chamber.

An extract vaporizer has been disclosed. The vaporizer includes an adjustable-volume reservoir adapted to contain extract. The adjustable-volume reservoir is generally cylindrical. The vaporizer further includes a vaporization chamber. The reservoir and vaporization chamber are connected by a port. The vaporizer further includes a heating element proximal to the vaporization chamber. The vaporizer further includes a conduit adapted to ventilate the vaporization chamber.

A heater system is provided. The system includes a resistive element with a temperature coefficient of resistance (TCR) of at least about 1,000 ppm such that the resistive element functions as a heater and as a temperature sensor and the resistive element is a material having greater than about 95% nickel. The system also includes a heater control module including a two-wire controller with a power control module that is configured to periodically compare a measured resistance value of the resistive element against a reference temperature to adjust for resistance drift over time during operation such that a temperature drift of the resistive element is less than about 1% over a temperature range of about 500° C.-1,000° C.