Abstract: A powder dispenser includes: a dispenser housing having including a hopper for holding a powder; an outlet tube; a slider slidably mounted with respect to the dispenser housing between a feed position and a dispense position, the slider including a holding member for receiving powder supplied through a dispensing opening of the hopper in the feed position, the holding member having pores which permit gas passage therethrough but which prevent powder passage therethrough, and a vacuum passage for removing gas trapped by the powder in the holding member, through the holding member wall; an angled bore for supplying a pressurized gas at an angle to the hopper to provide a swirling effect; and a gas supply bore in the dispenser housing for supplying a pressurized gas to the receptacle portion in the dispense position to force the powder from the receptacle portion to the outlet tube.

Abstract: A powder dispenser includes: a dispenser housing having including a hopper for holding a powder; an outlet tube; a slider slidably mounted with respect to the dispenser housing between a feed position and a dispense position, the slider including a holding member for receiving powder supplied through a dispensing opening of the hopper in the feed position, the holding member having pores which permit gas passage therethrough but which prevent powder passage therethrough, and a vacuum passage for removing gas trapped by the powder in the holding member, through the holding member wall; an angled bore for supplying a pressurized gas at an angle to the hopper to provide a swirling effect; and a gas supply bore in the dispenser housing for supplying a pressurized gas to the receptacle portion in the dispense position to force the powder from the receptacle portion to the outlet tube.