An induction heater is proposed for melting paraffin deposits formed in borehole columns filled with borehole liquid. The heater includes an inductor joined essentially with a control module enclosing electronic components. The inductor includes a non-metallic protective cover enclosing particularly an induction coil heating up a heating rod with a tip that melts paraffin deposits. The protective cover provides free propagation of HF-magnetic field created by the coil, which also heats up the column's walls melting paraffin thereon. An internal cavity is formed particularly by surfaces of the protective cover, tip, induction coil, etc., and communicates with an elastic compensator. The cavity is filled with liquid filler allowing the inductor to withstand high pressure of the borehole liquid. Surplus of the filler formed in the cavity due to volumetric temperature expansion flows essentially into the compensator. Embodiments envisage regulating the heater's temperature, and operating the inductor at a resonance frequency.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be removably coupled with the device, the device including a device housing comprising a cavity configured to receive at least a portion of the cartridge when the device housing is engaged with the device housing, an inductor coil disposed around or adjacent to the cavity, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; and the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid permeable susceptor element configured to allow the aerosol-forming substrate, in liquid phase, to permeate therethrough.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be removably coupled with the device, the device including a device housing comprising a cavity configured to receive at least a portion of the cartridge when the device housing is engaged with the device housing, an inductor coil disposed around or adjacent to the cavity, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; and the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid permeable susceptor element configured to allow the aerosol-forming substrate, in liquid phase, to permeate therethrough.

A cartridge for an electrically heatable aerosol-generating system is provided, the system including an aerosol-generating device, the cartridge configured to be used with the device, the device including a device housing defining a cavity to receive the cartridge, an inductor coil around or adjacent to the cavity, and a power supply connected to the coil and to provide a high-frequency oscillating current; the cartridge including: a cartridge housing to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface, at least part of which is formed by a fluid permeable susceptor element that is electrically isolated from any other electrically conductive components; a first capillary material in the cartridge housing in contact with the susceptor element; and a second capillary material in the cartridge housing in contact with the first material, the first material having a higher thermal decomposition temperature than the second material.

A cartridge for an electrically heatable aerosol-generating system is provided, the system including an aerosol-generating device, the cartridge configured to be used with the device, the device including a device housing defining a cavity to receive the cartridge, an inductor coil around or adjacent to the cavity, and a power supply connected to the coil and to provide a high-frequency oscillating current; the cartridge including: a cartridge housing to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface, at least part of which is formed by a fluid permeable susceptor element that is electrically isolated from any other electrically conductive components; a first capillary material in the cartridge housing in contact with the susceptor element; and a second capillary material in the cartridge housing in contact with the first material, the first material having a higher thermal decomposition temperature than the second material.

A system for providing endodontic material includes an application device and a docking station for the application device. The application device includes a cartridge having a chamber structure containing endodontic material, with the chamber structure capable of being heated by magnetic induction. The application device also includes a handle assembly configured to hold the cartridge. The docking station includes a slot configured to contain the application device with a part of the application device positioned in the slot. The docking station is provided with an induction heating coil positioned adjacent to the slot, with the induction heating slot being configured to heat the cartridge of the application device.

A system for providing endodontic material includes an application device and a docking station for the application device. The application device includes a cartridge having a chamber structure containing endodontic material, with the chamber structure capable of being heated by magnetic induction. The application device also includes a handle assembly configured to hold the cartridge. The docking station includes a slot configured to contain the application device with a part of the application device positioned in the slot. The docking station is provided with an induction heating coil positioned adjacent to the slot, with the induction heating slot being configured to heat the cartridge of the application device.

Provided is an aerosol generating device for heating a cigarette to generate aerosol, the aerosol generating device includes an inner wall configured to form an accommodating space for accommodating at least a portion of the cigarette; a coil provided outside the inner wall, surrounding at least a portion of the accommodating space, and configured to generate an induced magnetic field; a heating body provided in the accommodating space and comprising a ferromagnetic substance that generates heat by the induced magnetic field; and a supporting portion configured to support the heating body and integrally molded with the heating body, wherein the inner wall supports the supporting portion and is integrally molded with the supporting portion.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be removably coupled with the device, the device including a device housing comprising a cavity configured to receive at least a portion of the cartridge when the device housing is engaged with the device housing, an inductor coil disposed around or adjacent to the cavity, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; and the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid permeable susceptor element configured to allow the aerosol-forming substrate, in liquid phase, to permeate therethrough.

An electrically heated aerosol-generating system is provided, including an aerosol-generating device and a cartridge configured to be removably coupled with the device, the device including a device housing comprising a cavity configured to receive at least a portion of the cartridge when the device housing is engaged with the device housing, an inductor coil disposed around or adjacent to the cavity, and a power supply connected to the inductor coil and configured to provide a high frequency oscillating current to the inductor coil; and the cartridge including a cartridge housing configured to engage the device housing and containing an aerosol-forming substrate, the cartridge housing having an external surface surrounding the aerosol-forming substrate, at least a portion of the external surface being formed by a fluid permeable susceptor element configured to allow the aerosol-forming substrate, in liquid phase, to permeate therethrough.