Abstract: An apparatus is provided including a first cartridge with a first central passageway and a first reservoir with a first product. The first product heated within the first cartridge forms a first quantity of vapor. The apparatus further includes a second cartridge having a second central passageway axially aligned with the first central passageway when the second cartridge is connected to the first cartridge and a second reservoir having a second product. The second product heated within the second cartridge forms a second quantity of vapor that passes through the second central passageway. The apparatus also includes a mouthpiece connected to the first cartridge and configured to deliver a combination of the first and second quantities of vapor from the first central passageway to a user.

Abstract: An apparatus is provided including a first cartridge with a first central passageway and a first reservoir with a first product. The first product heated within the first cartridge forms a first quantity of vapor. The apparatus further includes a second cartridge having a second central passageway axially aligned with the first central passageway when the second cartridge is connected to the first cartridge and a second reservoir having a second product. The second product heated within the second cartridge forms a second quantity of vapor that passes through the second central passageway. The apparatus also includes a mouthpiece connected to the first cartridge and configured to deliver a combination of the first and second quantities of vapor from the first central passageway to a user.

Abstract: An apparatus is provided including a first cartridge with a first central passageway and a first reservoir with a first product. The first product heated within the first cartridge forms a first quantity of vapor. The apparatus further includes a second cartridge having a second central passageway axially aligned with the first central passageway when the second cartridge is connected to the first cartridge and a second reservoir having a second product. The second product heated within the second cartridge forms a second quantity of vapor that passes through the second central passageway. The apparatus also includes a mouthpiece connected to the first cartridge and configured to deliver a combination of the first and second quantities of vapor from the first central passageway to a user.

Abstract: An electronic smoking device cartridge arrangement is provided. The device includes an upper joint joinable to an upper cartridge, a central passageway configured to fit with and provide gasses to the upper cartridge, a reservoir comprising a product, and a heating element, wherein heating the product forms a quantity of smoke that passes to and through the central passageway toward the upper cartridge. In one embodiment, product is also heated in the upper cartridge and the combined smoke or gas is provided to a mouthpiece to a user.

Abstract: An electronic smoking device cartridge arrangement is provided. The device includes an upper joint joinable to an upper cartridge, a central passageway configured to fit with and provide gasses to the upper cartridge, a reservoir comprising a product, and a heating element, wherein heating the product forms a quantity of smoke that passes to and through the central passageway toward the upper cartridge. In one embodiment, product is also heated in the upper cartridge and the combined smoke or gas is provided to a mouthpiece to a user.