Abstract: A dispenser has a housing, and a variable-volume storage chamber formed within the housing and defining a substantially fluid-tight seal between the chamber and exterior of the housing for storing a substance to be dispensed. A piston is mounted within the housing, and a one-way valve is mounted within the housing and coupled in fluid communication with the variable-volume storage chamber.

Abstract: Apparatus for filling containers having stoppers that are penetrable for filling the containers with a substance, and thermally resealable for thermally sealing the resulting hole. A container support supports at least one such container in a substantially fixed position during filling and resealing. A manifold drivingly mounted over the container support comprises (1) a cartridge including a filling needle for penetrating the resealable stopper and introducing a substance therethrough into the container, a mount for mounting the cartridge on the manifold, and a removable cover releasably coupled to the mount for covering the filling needle during transportation, installation and/or removal of the cartridge from the manifold. The manifold includes a thermal source for heating a penetrated region of the stopper and, sealing the hole.