Patent ID: 7748567

Claim:
A fluid cartridge for use with a hand-held applicator including an extendable plunger, wherein the cartridge is formed to store and dispense two fluids, comprising: an outer cartridge wall having an inner diameter, proximal and distal ends, and a first outlet at the distal end; an end cap having a neck that seats in the hand-held applicator, the end cap including a connecting collar that connects to the outer cartridge wall at the proximal end and defines an open end, the neck having a reduced inner diameter relative to the inner diameter of the outer cartridge wall; a delivery tube disposed within the outer cartridge wall and defining a second outlet at the distal end; a first piston disposed between the outer cartridge wall and the delivery tube forming a first fluid chamber; a second piston disposed within the outer cartridge wall between the first piston and the open end of the end cap; a piston extension projecting in a proximal direction from the second piston and disposed within the neck, the piston extension adapted to engage the extendable plunger when the extendable plunger enters the neck; a fixed wall disposed between the first piston and the second piston, wherein the fixed wall and the second piston define a second fluid chamber; and a transmission structure disposed between the second piston and the first piston.