Abstract: A device for dispensing a free-flowing particulate substance comprises a chamber having a normally open inlet and a normally closed outlet. The substance is dispensed by substantially simultaneously opening the outlet of the chamber and closing the inlet of the chamber. A wall of the chamber may be moveable to set positions relative to the remaining stationary walls of the chamber to vary the volume of the chamber and thereby dispense various desired quantities of substance.

Abstract: A toothpaste dispenser comprises a tubular body portion and a cylindrical base portion, the bottom of the base portion having a threaded aperture. A threaded shaft threadably engages the aperture. A tube which contains toothpaste has a base portion and a dispensing opening. A disc is positioned in the tube near the base and may be axially advanced to force toothpaste out the opening of the tube. Means is provided for releasably connecting the tube to the base portion so that the tube is permitted to rotate relative to the base portion of the dispenser. Upon rotation of the tube the threaded shaft which engages the disc is axially advanced along the tube to dispense the toothpaste at a controlled rate.