Abstract: A collapsible, articulated actuator for the aerosol delivery of a medicament comprised comprises an elliptical expansion chamber hingedly and slideably attached to an aerosol cannister-receiving portion in a manner which permits the cannister-receiving portion to be telescoped into the expansion chamber for storage. In use, the cannister-receiving portion is pulled out of the expansion chamber and rotated until it locks into position at an angle ranging between about 102.degree. and 110.degree. with the expansion chamber. The angle between the two portions of the actuator, the volume of the expansion chamber, and the degree of elliptical eccentricity of the expansion chamber are optimized for maximum delivery of an aerosolized medicament to the deep lungs of a patient.

Abstract: Disclosed is a single piece integrally formed safety closure for a container including a body portion designed for fluid tight engagement with the neck and finish of a container and a depending portion including a passageway which extends into the container. A valve is integrally formed in the side wall of the closure and opens upon insertion of a dropper-dispenser. The valve closes upon removal of the dropper, thereby preventing spillage or inadvertent removal of the contents of the container.