Abstract: A device is described for indicating the number of doses dispensed from an aerosol container (2, 102) having an outlet valve member (4, 104) movable relative to the body of the container to dispense its contents in measured doses. Relative movement between the aerosol container body and the outlet member are detected by a ratchet wheel (14, 114) and ratchet driving member (11A, 111) which move with the body and outlet member respectively or vice versa. The ratchet wheel may in turn drive an indicating member in the form of a linear rack (20, 119, 120) or rotatable wheel (116).

Abstract: A device is provided for dispensing a mixture of propellant and product (e.g. medicament) from a pressurized aerosol container (3). The device has a housing (1) receiving the container (3), a cover (7) and an actuator lever (10) all pivotally connected to one another. The axes of pivoting are so arranged that moving the cover (7) from a closed position to an open position puts the device in a "primed" condition in which squeezing the housing (1) and actuator lever (10) together displaces the container (3) with respect to the housing (1) and thereby opens the outlet valve (4) of the container (3) to dispense mixture from the container.