US Patent 11744964 Electronic aerosol provision system and vaporizer therefor

A sub-assembly for an electronic vapor provision system includes a source of liquid for vaporization; and a vaporizer for vaporizing a portion of the liquid for inhalation by a user, the vaporizer including a wick component; and an electrical heating element embedded in the wick component. The wick component includes a sheet of a porous electrically-insulating material and is arranged to wick liquid from the source of liquid to a surface of the wick component adjacent to the embedded electrical heating element for vaporization.