Abstract: A vaporizer device includes various modular components. The vaporizer device includes a first subassembly. The first subassembly includes a cartridge connector that secures a vaporizer cartridge to the vaporizer device and includes at least two receptacle contacts that electrically communicate with the vaporizer cartridge. The vaporizer device includes a second subassembly. The second subassembly includes a skeleton defining a rigid tray that retains at least a power source. The vaporizer device also includes a third subassembly. The third subassembly includes a plurality of charging contacts that supply power to the power source, and an end cap that encloses an end of the vaporizer device.

Abstract: A variable resistance device for use in training a swimmer includes an L-shaped scoop member, a belt and a surface area varying mechanism. The L-shaped scoop member is formed out of a relatively non-reflexible sheet of plastic material and has a support portion and resistance portion. The support portion is substantially a truncated triangle with a top edge and a bottom edge. The resistance portion is substantially a rectangle with a flat surface area, a first edge and a second edge which is contiguous with the bottom edge of the support portion. The resistance portion has a rectangular slot of a first cross-section. The belt is detachably coupled to the swimmer's torso and is hingedly coupled to the support portion of the L-shaped scoop member adjacent to the top edge thereof. The L-shaped scoop member is pivotally coupled to the belt in order not to interfere with the swimmer's stroke. The surface area varying mechanism includes a sliding member, two mounts and a securing mechanism.