Patent ID: 6959843

Claim:
A supply device comprising: a tank configured to store a powdered coating agent therein; a supply tube configured to extend vertically to guide the powdered coating agent from the tank to a mold; first and second valves disposed in the supply tube and positionable to permit and to impede a flow of powdered coating agent through the supply tube; a pressurized fluid inlet configured to deliver a pressurized fluid to the powdered coating agent between the first and second valves; a measuring device disposed between the tank and the supply tube, the measuring device configured to receive a fixed amount of powdered coating agent from the tank and to deliver the fixed amount of powdered coating agent to the supply tube, the measuring device comprising a piston configured to be horizontally movable within a cylinder, and the piston defining a void configured to receive and to deliver the fixed amount of powdered coating agent; and a second pressurized fluid inlet disposed in the cylinder and configured to deliver pressurized fluid to the powdered coating agent in the void of the piston.