US Patent 9854839 Electronic vaping device and method

An electronic smoking article includes a liquid supply including liquid material, a heater operable to heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol, a wick in communication with the liquid material and in communication with the heater such that the wick delivers the liquid material to the heater, and at least one air inlet operable to establish a predetermined resistance to draw under a prescribed test of said smoking article.