Patent attributes
A portable device for checking wind direction discharges a visible, and optionally scented, vapor (e.g., smoke) stream into the atmosphere in a well-defined reference direction. In some embodiments, the device includes a power source, a vessel having an internal plenum chamber storing a volume of air, a reservoir containing a vaporizable agent e.g., smoke producing fluid), a vaporizing element (e.g., resistance heating device) associated with the vaporizable agent, and a switch. The vessel is deformable to generate an airflow. The switch temporarily connects the power source to the vaporizing element, thereby energizing the vaporizing element to generate vapor. The airflow also carries the vapor into the atmosphere as a visible vapor stream flowing in the reference direction. The reservoir and vaporizing element may be carried in a cartridge (e.g., custom E-Cig component) removably mounted on the device.