Abstract: A minimal-amount powder metering device (1) for pharmaceutical or chemical applications, for metering powder volumes of less than 1 cm3, comprising a metering chamber (3) which is delimited by a surrounding wall (9) and which can be connected to a vacuum source (28) for suctioning powder in order to fill the metering chamber (3) with powder to be metered, filter means for retaining powder in the metering chamber (3) during a suctioning process being associated with the metering chamber (3), including the filter means are formed by the surrounding wall (9) and including at least one suction opening (12, 13) which serves to retain the powder in the metering chamber (3) and through which a vacuum can be applied to the metering chamber (3) is formed in the surrounding wall (9).

Abstract: A minimal-amount powder metering device (1) for pharmaceutical or chemical applications, for metering powder volumes of less than 1 cm3, comprising a metering chamber (3) which is delimited by a surrounding wall (9) and which can be connected to a vacuum source (28) for suctioning powder in order to fill the metering chamber (3) with powder to be metered, filter means for retaining powder in the metering chamber (3) during a suctioning process being associated with the metering chamber (3), including the filter means are formed by the surrounding wall (9) and including at least one suction opening (12, 13) which serves to retain the powder in the metering chamber (3) and through which a vacuum can be applied to the metering chamber (3) is formed in the surrounding wall (9).

Abstract: A powder metering apparatus (1) having a metering chamber (2) which defines a powder metering volume (3) and can be emptied through an outlet opening (11), wherein, in order to draw in powder (9) from a powder supply line (10) through a diaphragm (5) which bounds the metering chamber (2), a negative pressure (8) can be applied to the metering chamber (2). The diaphragm (5) is arranged such that the latter can be adjusted relative to the outlet opening (11) in order to set the powder metering volume (3) and/or to empty the metering chamber (2).

Abstract: A powder metering apparatus (1) comprising a metering chamber (2) which defines a powder metering volume (3) and can be emptied through an outlet opening (11), wherein, in order to draw in powder (9) from a powder supply line (10) through a diaphragm (5) which bounds the metering chamber (2), a negative pressure (8) can be applied to the metering chamber (2). The diaphragm (5) is arranged such that the latter can be adjusted relative to the outlet opening (11) in order to set the powder metering volume (3) and/or to empty the metering chamber (2).