Abstract: An inhaler for delivery of a medicament by inhalation includes an inhaler body for receiving a canister having a dispensing valve. A drive mechanism is provided for driving the canister from a rest position in which the valve is closed to an actuating position in which the valve is open. A resetting mechanism is provided for resetting the drive mechanism. A return mechanism is provided for returning the canister from the actuating position to the rest position, wherein the return mechanism comprises a damping system that is configured to enable the canister to automatically return from the actuating position to the rest position within a predetermined time period. A method of operation of an inhaler is also disclosed.

Abstract: An inhaler for delivery of a medicament by inhalation is disclosed. The inhaler comprises the following components. An inhaler body for receiving a canister having a dispensing valve. A drive mechanism comprising a biasing means such as a spring and a moving component such as a yoke, the drive mechanism for driving the canister, when received in the inhaler body, from a rest position in which the valve is closed to at least an actuating position in which the valve is open. The drive mechanism drives the canister when the biasing means is released from a loaded configuration to move the moving component from a first position to a second position. A resetting mechanism, for example a mouthpiece cap arrangement for pushing upwardly on the yoke, for resetting the drive mechanism by moving the moving component from the second position to the first position and reloading the biasing means to the loaded configuration.