Abstract: An electronic cigarette has a mouthpiece portion and a power supply portion. The mouthpiece portion has an atomizer seating to receive an atomizer. An atomizer lock is located in the atomizer seating and is moveable between an open position and a locked position. An ejection mechanism with a biased ejection surface is moveable within the atomizer seating and is biased toward an extended position. The ejection mechanism is moved to a retracted position when an atomizer is introduced to the atomizer seating; the atomizer lock grips the atomizer to hold it in a fixed position. The atomizer is ejected from the atomizer seat when the atomizer lock is opened.

Abstract: An electronic cigarette includes a main body and a replaceable cartridge that can be disassembled from the main body. The main body includes a laser. The cartridge includes a liquid store and an absorber configured to be heated by radiation emitted by the laser in order to vaporise a vaporisable medium. An enabling device is also provided to enable propagation of radiation from the laser to the absorber when the cartridge is assembled to the main body and to inhibit propagation of radiation from the laser to the absorber when the cartridge is disassembled from the main body.

Abstract: An electronic cigarette has a mouthpiece portion and a power supply portion. The mouthpiece portion has an atomizer seating to receive an atomizer. An atomizer lock is located in the atomizer seating and is moveable between an open position and a locked position. An ejection mechanism with a biased ejection surface is moveable within the atomizer seating and is biased toward an extended position. The ejection mechanism is moved to a retracted position when an atomizer is introduced to the atomizer seating; the atomizer lock grips the atomizer to hold it in a fixed position. The atomizer is ejected from the atomizer seat when the atomizer lock is opened.

Abstract: An electronic cigarette includes a mouthpiece portion having a refillable liquid store having a sealable opening, a valve closing member and an atomizer receiving section. The valve closing member is configured to seal the opening and control a flow of liquid from the liquid store to the atomizer receiving section. The flow of liquid to an atomizer is enabled when an atomizer is present in the atomizer receiving section. The atomizer is connectable to an inner sleeve at the atomizer seating in a power supply portion. The atomizer is moveable toward the valve closing member such that the valve closing member is urged toward the open position, and away from the valve closing member such that the valve closing member cannot be urged toward the open position, by axially moving the inner sleeve in relation to an outer sleeve with an actuator.

Abstract: A liquid refill system includes a liquid reservoir portion of an electronic cigarette and a refilling bottle. The refillable reservoir portion has a refillable liquid store, an axially moveable valve closing member and a first biasing member. The refillable liquid store has an opening in a bottom portion and the axially moveable valve closing member is moveable between an open position and a closed position. The first biasing member is configured to bias the axially moveable valve closing member towards the closed position to seal the liquid opening. The axially moveable valve closing member is moved into the open position when the refillable reservoir portion is engaged with the refilling bottle. The refilling bottle has a liquid tank 92 and a liquid transfer arrangement configured to transfer liquid from the liquid tank to the refillable liquid store in the in the electronic cigarette.

Abstract: An electronic cigarette and a mouthpiece portion of an electronic cigarette are provided. The mouthpiece portion has a liquid store, an atomizer-receiving portion, a vapour outlet and a vapour flow tube. The liquid store has a liquid opening in a bottom portion thereof; the mouthpiece portion has an axially moveable closing member which is movable between an open position and a closed position. The axially moveable closing member is biased towards the closed position to seal the liquid opening. The closing member is urged towards the open position when an atomizer is present in the atomizer receiving portion.

Abstract: An electronic cigarette includes a laser and a light guide. A reservoir is provided for storing a vaporisable liquid. An absorber is provided to absorb light emitted by the laser and to generate heat. An optical interface is provided at a second end face of the light guide, and a flow path is provided for vaporisable liquid to flow from the reservoir towards the optical interface at the second end face and the absorber. The optical interface selectively reflects or refracts light emitted by the laser such that light emitted by the laser is coupled towards the absorber when liquid is present at the optical interface and light emitted by the laser is coupled away from the absorber when liquid is not present at the optical interface.

Abstract: An electronic cigarette includes a main body and a replaceable cartridge that can be disassembled from the main body. The main body includes a laser. The cartridge includes a liquid store and an absorber configured to be heated by radiation emitted by the laser in order to vaporise a vaporisable medium. An enabling device is also provided to enable propagation of radiation from the laser to the absorber when the cartridge is assembled to the main body and to inhibit propagation of radiation from the laser to the absorber when the cartridge is disassembled from the main body.

Abstract: An electronic cigarette includes a laser and a replaceable atomiser. A reservoir is provided for storing a vaporisable liquid. The replaceable atomiser includes a light guide, an absorber and a vaporisation chamber. A liquid inlet in the atomiser provides a flow path for liquid in the reservoir to flow towards the absorber and the vaporisation chamber. The light guide is configured to couple light from the laser towards the absorber which can generate heat by absorbing the emitted light and this can cause vaporisation of the vaporisable liquid. When the light guide becomes dirty or contaminated it can be replaced simply by replacing the atomiser.