Heater for smoking substitute system

EP4670529A3Pending Publication Date: 2026-04-08IMPERIAL TOBACCO LTD
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2020-03-13
Publication Date
2026-04-08

AI Technical Summary

Technical Problem

There is a need for improved design of smoking substitute systems, particularly heat not burn (HT) systems, to enhance user experience and improve function by reducing residue deposition on the heater, which can lead to cleaner systems and better performance.

Method used

A heater for HT systems is designed with a silica coating on its external surface to minimize residue deposition, featuring a ceramic core, heating track, and a tapered distal tip, which is conical and covered by the silica coating, ensuring a smooth and uniform surface for easier insertion and removal of consumables.

Benefits of technology

The silica coating reduces residue buildup, leading to a cleaner system with less downtime for cleaning, improved performance, and extended heater life, enhancing the overall user experience.

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Abstract

A heater for a heat not burn device, comprising a rod portion with a heating track located thereon and a coating formed from silica. The coating forms an external surface of a portion of the heater for heating tobacco in a consumable for engagement with the device. By providing a heater for a heat not burn device comprising a coating formed from silica, deposition of residues on the heater can be avoided or minimized. Reduction in deposition of residue may result in cleaner system requiring less downtime for cleaning, reduction in burnt odour from the device, thus improving overall user experience with the heat not burn device. Further, reduction in deposition of residues on the heater may also provide for improvement in performance and / or life of the heater by protecting the heating element.
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Citation Information

Patent Citations

  • Flavor generating article

    EP0503767A1

  • Low-temperature non-burning smoking set heating element and processing and manufacturing method thereof

    CN109288133A

  • Induction Vaporizer and Method

    US20180192701A1

  • Electrical smoking article and method for making same

    US5505214A

  • Aerosol generating system with non-circular inductor coil

    WO2019030301A1