Patent ID: 8292619

Claim:
A delivery system for controlled dispensing of a substance, the system comprising: a cartridge having at least two compartments for storing material components, each of the at least two compartments having an outlet at a front end, wherein the system is adapted to mix the components to form a substance; a plunger having at least two pistons for sealing the respective compartments and advancing material components in the at least two compartments; a mixer for receiving the material components from the at least two compartments and for mixing the material components; a sleeve which is movable over the exterior surface of the cartridge; a reservoir for receiving the mixed substance from the mixer, wherein the reservoir is formed by an interior surface of the sleeve and an exterior surface of the cartridge, wherein a cavity is formed within the reservoir; a lever and a geared connection rod for providing controlled dispensing of the substance; and a self-opening closure system which seals the front ends of the at least two compartments and opens when the plunger is advanced; wherein the lever is attached to the sleeve, and a pawl engages with the lever so that upon each push of the lever, the cartridge is caused to move forward toward the cavity thereby providing controlled dispensation of the substance.