Patent ID: 8439226

Claim:
A dispensing valve for dispensing liquid from a cartridge having a barrel defining a volume containing the liquid and a coupling element for coupling the cartridge with the dispensing valve, comprising: a valve body adapted to receive at least a portion of the cartridge therein; a valve member disposed in said valve body and including a liquid flow passage inside said valve member and adapted for fluid communication with the cartridge, and said valve member including a coupling element adapted to mate with the coupling element on the cartridge for coupling the cartridge with said valve member; and a valve seat element disposed in said valve body, said valve seat element including a liquid chamber inside said valve seat element and in communication with a liquid outlet and said liquid flow passage, and said valve seat element mounted for reciprocating movement between a closed position engaged with said valve member to prevent liquid from exiting said liquid chamber through said liquid outlet and an open position disengaged from said valve member to allow liquid to flow from the cartridge through said liquid flow passage, and then through said liquid chamber and through said liquid outlet.