Multiple component dispensing cartridge and method with side-by-side fluid chambers

摘要

A fluid cartridge (12) for storing and dispensing first (80) and second fluids (82) includes a first tubular cartridge wall (30) and a second tubular cartridge wall (32) in side-by-side relation. First (52) and second pistons (54) are coupled for movement by a coupling portion (56) and are respectively disposed within the first and second tubular cartridge walls to define first (84) and second (86) side-by-side fluid chambers. A fixed wall is disposed between the first and second fluid chambers. A force is applied to the first piston along the first central longitudinal axis (92) of the first tubular cartridge wall and moves both the first and second pistons along and within the first and second fluid chambers as the coupling portion between the first and second pistons travels within an opening in the fixed wall. The opening may be a preformed slot (150) or may be formed by a cutting element (70) attached with the pistons as the pistons move during the dispensing operation.