Patent ID: 7037374

Claim:
A powder spraying system, comprising: first and second powder supplies; first and second powder pumps, said first powered pump operative to pump powder from said first powder supply through a first pump outlet, said second powder pump operative to pump powder from said second powder supply through a second pump outlet; first and second powder hoses, said first powder hose having a first powder hose outlet and being in communication with said first pump outlet, said second powder hose having a second powder hose outlet and being in communication with said second pump outlet; a powder spray booth; a powder spray gun operable to spray powder within said powder spray booth; said powder spray gun being connectable to a selected one of said first and second powder hose outlets; a source of pressurized air to operate said first and second pumps; and a pneumatic switch being operable to connect said source of pressurized air to a selected one of said powder pumps which corresponds to said selected one of said first and second powder hose outlets, said pneumatic switch having at least one pneumatic inlet connectable to said source of pressurized air and at least two pneumatic outlets with each of the outlets connectable to a respective one of said first and second pumps, said pneumatic switch being manually actuated to select which of said first and second pumps receives a pressurized air, said pneumatic switch being operated by a manually actuated member having at least first and second positions, said first pump being selected in said first position and said second pump being selected in said second position.