Patent ID: 7377404

Claim:
A modular mixing assembly for use with a dispensing cartridge having a dispensing cartridge tip, the cartridge used to dispense a reactive chemical composition, the assembly comprising: a primary central body shaped to accept the dispensing cartridge, the primary central body having an upstream end and a downstream end, and having a pair of opposed primary central body passages that each extend from a primary central body inlet port to a primary central body exit port, the primary central body exit port being spaced to interconnect with corresponding dispensing cartridge inlet ports; a first modular valve block to channel flow of a fluid from a first external source to one of the primary central body inlet ports; a second modular valve block to channel flow of a fluid from a second external source to the other of the primary central body inlet ports; a secondary central body assembly attached to the downstream end of the primary central body, the secondary central body assembly having an upstream end and a downstream end, and having a passage that extends from a secondary central body assembly inlet port to a secondary central body assembly exit port; and a modular tip adapter mounted on the dispensing cartridge tip and affixed to the secondary central body assembly, the modular tip adapter having an exit port and an opening to receive the dispensing cartridge tip and having an adapter passage from an adapter passage inlet port to an adapter passage exit port within the adapter, the adapter having a primary adapter passage formed by an interior wall of the adapter and an exterior surface of the dispensing cartridge tip that extends from the adapter passage exit port to the adapter outlet port, the secondary central body assembly outlet port being located to interconnect with the adapter passage inlet port.