US Patent 10383370 Electronic cigarette having reusable base with heating element

An electronic cigarette comprising a base part and a cartridge configured to be assembled thereto, said base part comprising a battery and at least one heating element connected to the battery, and said cartridge comprising: a substance chamber configured for containing therein a substance to be smoked, said substance chamber comprising a substance outlet; a vaporization chamber in communication with the substance outlet for receiving said substance therein; and at least one heat transfer unit configured, at least when the cartridge is assembled to the base part, for being heated by the heating element of the base part and for heating the substance being provided via said substance outlet for its vaporization in the vaporization chamber.