Juul Labs, Inc.

Joshua A Kurzman

James Monsees

Adam Bowen

William W Alston

Paul R Vieira

Ian Garcia-Doty

Bradley J Ingebrethsen

Jacob R Davis

Timothy J Watson

Joseph S Wilinski, Jr

Andrew J Pappas

An apparatus includes a housing including a power source; a reservoir including an inlet, an outlet, and configured to contain vaporizable material and couple to the housing; and a PTCR heating element configured to electrically couple to the power source and heat the vaporizable material to form an aerosol. The PTCR heating element includes an electrical resistivity that varies based on temperature. The electrical resistivity includes an electrical resistivity transition zone including an increase in electrical resistivity over a temperature range such that, when the PTCR heating element is heated to a first temperature within the transition zone, current flow from the power source is reduced to a level that limits further temperature increases of the PTCR heating element. Related apparatus, systems, techniques, and articles are also described.

Vaporizer including positive temperature coefficient of resistivity (PTCR) heating element

Various embodiments of a vaporization device are described that include one or more features, such as for generating a combined inhalable aerosol. In some embodiments, the vaporization device can include one or more heaters that are configured to heat one or more vaporizable materials. Various embodiments of heating elements and heating systems for use in vaporization devices are also described.

Vaporizer device with more than one heating element

A vaporizer device includes a housing including an air inlet, a heating element within the housing and a heat exchanger. The heating element includes a nonlinear positive temperature coefficient of resistance material. The heat exchanger is thermally coupled to the heating element and arranged to receive airflow from the air inlet. The heat exchanger is configured to transfer heat between the heating element and the airflow to produce a heated airflow. The heated airflow exiting the heat exchanger is configured to vaporize a vaporizable material. Related apparatus, systems, techniques and articles are also described.

Vaporizer including positive temperature coefficient of resistivity heater

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San Francisco, CA, United States of America

Joshua A Kurzman