Abstract: A cartridge for a vaporizer can include an elongated reservoir body and a plurality of longitudinally spaced heating modules configured to heat corresponding portions or zones of the reservoir body for vaporizing a vaporizable substance disposed therein. The plurality of heating modules can be individually controlled or controllable for optimizing user control over a vaporizer operation. The reservoir body can be disposed in or through openings in the heating modules with a gap there between and the heating modules can be configured to heat the reservoir body from a plurality of directions.

Abstract: A device for storing oil or another vaporizable substance can include a porous body adapted to absorb a volume of liquid and to retain the volume of liquid for vaporization. A porous body can include a matrix of pores adapted to take up and retain oil by capillary action. A method of vaporizing oil can include storing the oil in a porous body and heating the body.

Abstract: A device for storing oil or another vaporizable substance can include a porous body adapted to absorb a volume of liquid and to retain the volume of liquid for vaporization. A porous body can include a matrix of pores adapted to take up and retain oil by capillary action. A method of vaporizing oil can include storing the oil in a porous body and heating the porous body.

Abstract: A vaporizer can include a reservoir for holding oil, a chamber for holding vapor, a feeder for feeding oil from the reservoir to the chamber, and a heater for heating oil. A feeder can be configured to feed oil from the reservoir to the chamber by capillary action. A vaporizer can include a plug sealingly coupled to the reservoir and configured to slide relative to at least a portion of the reservoir. A heater can include at least one of a laser, a resistance heater, a wire, a coil, a wire at least partially disposed in a housing, and a combination thereof. A vaporizer can include a controller and can be configured to heat a to heater to a first temperature for a first time period, reduce the temperature of the heater, and maintain the heater at a second temperature for a second time period.

Abstract: A vaporizer can include a body, an air inlet for airflow into the body, an air outlet for airflow out of the body and a chamber disposed fluidically between the inlet and the outlet. The chamber can be configured to hold a porous body having fluid disposed therein. The porous body can be removable. A vaporizer can include a heater disposed in the chamber for heating and removably holding the porous body. The heater can be fluidically insulated and can be structurally supported by one or more electrical conductors.

Abstract: A vaporizer can include a body, an air inlet for airflow into the body, an air outlet for airflow out of the body and a chamber disposed fluidically between the inlet and the outlet. The chamber can be configured to hold a porous body having fluid disposed therein. The porous body can be removable. A vaporizer can include a heater disposed in the chamber for heating and removably holding the porous body. The heater can be fluidically insulated and can be structurally supported by one or more electrical conductors.

Abstract: A vaporizer can include a reservoir for holding oil, a chamber for holding vapor, a feeder for feeding oil from the reservoir to the chamber, and a heater for heating oil. A feeder can be configured to feed oil from the reservoir to the chamber by capillary action. A vaporizer can include a plug sealingly coupled to the reservoir and configured to slide relative to at least a portion of the reservoir. A heater can include at least one of a laser, a resistance heater, a wire, a coil, a wire at least partially disposed in a housing, and a combination thereof. A vaporizer can include a controller and can be configured to heat a heater to a first temperature for a first time period, reduce the temperature of the heater, and maintain the heater at a second temperature for a second time period.

Abstract: A vaporizer can include a reservoir for holding oil, a chamber for holding vapor, a feeder for feeding oil from the reservoir to the chamber, and a heater for heating oil. A feeder can be configured to feed oil from the reservoir to the chamber by capillary action. A vaporizer can include a plug sealingly coupled to the reservoir and configured to slide relative to at least a portion of the reservoir. A heater can include at least one of a laser, a resistance heater, a wire, a coil, a wire at least partially disposed in a housing, and a combination thereof. A vaporizer can include a controller and can be configured to heat a to heater to a first temperature for a first time period, reduce the temperature of the heater, and maintain the heater at a second temperature for a second time period.

Abstract: A device for storing oil or another vaporizable substance can include a porous body adapted to absorb a volume of liquid and to retain the volume of liquid for vaporization. A porous body can include a matrix of pores adapted to take up and retain oil by capillary action. A method of vaporizing oil can include storing the oil in a porous body and heating the body.

Abstract: A vaporizer can include a reservoir for holding oil, a chamber for holding vapor, a feeder for feeding oil from the reservoir to the chamber, and a heater for heating oil. A feeder can be configured to feed oil from the reservoir to the chamber by capillary action. A vaporizer can include a plug sealingly coupled to the reservoir and configured to slide relative to at least a portion of the reservoir. A heater can include at least one of a laser, a resistance heater, a wire, a coil, a wire at least partially disposed in a housing, and a combination thereof. A vaporizer can include a controller and can be configured to heat a heater to a first temperature for a first time period, reduce the temperature of the heater, and maintain the heater at a second temperature for a second time period.

Abstract: Embodiments of the present disclosure are directed towards a hood enclosure assembly for cook-top downdraft ventilation and associated systems, techniques, and configurations. In one embodiment, an apparatus includes one or more structural elements for placement on one or both of the cooking surface or a surface adjacent to the cooking surface that is substantially parallel with the cooking surface, the one or more structural elements being configured to form a cavity to house a vent of a downdraft ventilation system. Other embodiments may be described and/or claimed.

Abstract: An exercise device comprising a core element which may be generally spherical and interchangeable shells or covers which are mounted in an overlying relationship with the core to vary the total weight. The covers may have a two-part hinged construction or be segmented with the segments of each cover being interlocking. In one embodiment, the covers are sized to allow each cover to be mounted or nested one upon another in order to vary the weight. The cover may include two spherical panels having at least an outer wall element. Weight blocks, which can be mounted to the outer wall element or placed in a space between the outer wall element and an inner wall element, allow the mass of the cover to be adjusted. The exercise device may have attachment means to attach it to a bar unit, such as a barbell, or may be used as a free-standing exercise ball.