Patent ID: 7743946

Claim:
A switch over device for a product dispenser, comprising: a manifold including: a concentrate inlet communicating with a concentrate outlet adapted for communication with a concentrate inlet of a product valve, a first diluent inlet, a second diluent inlet, a diluent outlet adapted for communication with a diluent inlet of a product valve, an outlet chamber communicating with the diluent outlet, a first bore in communication with the first diluent inlet and the outlet chamber, and a second bore in communication with the second diluent inlet and the outlet chamber; a first stem assembly disposed within the first bore, wherein the first stem assembly in a first position seals the first bore to interrupt communication between the first diluent inlet and the diluent outlet and in a second position opens the first bore to permit communication between the first diluent inlet and the diluent outlet; and a second stem assembly disposed within the second bore, wherein the second stem assembly in a first position seals the second bore to interrupt communication between the second diluent inlet and the diluent outlet and in a second position opens the second bore to permit communication between the second diluent inlet and the diluent outlet, further wherein the second stem assembly must be in its first position for the first stem assembly to be moved into its second position and the first stem assembly must be in its first position for the second stem assembly to be moved into its second position.