Common head having an offset partition for use with multi-component dispensing tools and a tubular liner arranged for locating within the common head

A dual component cartridge assembly including a common head, the dual component cartridge assembly including a first cartridge tube having a larger cross-section for containing and discharging a first single component, and a second cartridge tube having a smaller cross-section for containing and discharging a second single component reactive with the first single component, wherein each of the first and second cartridge tubes includes a rigid wall and a plunger slidably seated therein, the cartridge assembly arranged to be retained within a material containment unit of a dispensing device, said common head comprising:

• a. a single rigid-walled tube arranged for receiving the first and second single components from said first and second cartridge tubes, a length for passage of the first and second single components therethrough, and a discharge end;
• and,
• b. an offset partition provided to enable separate passage of said first and second single components through said common head, wherein said offset partition is of uniform thickness and is curved along its length to form a convex surface and a concave surface, said partition situated in an offset position within said single rigid-walled tube to define a larger pathway having a larger cross-sectional size for passage of the first single component therethrough, said convex surface forming a portion of the larger pathway, and a smaller pathway having a smaller cross-sectional size for passage of the second single component therethrough, said concave surface forming a portion of the smaller pathway, said single rigid-walled tube discharging the first and second single components in a predetermined fixed ratio.