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AssigneeAncosys GmbH
InventorsJuerg Stahl, Irene Popova, Christian Rueckl
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Device for metering powder, in particular in clean-rooms, which includes a vessel containing powder and a sealing head with a septum for the vessel, wherein the sealing head is connectable powder-tight with the vessel and the septum powder-tight with the sealing head and the device further includes a vessel holder, which serves to hold the sealing head of the vessel, and the vessel with its opening points downwards, so that the powder can flow out of the vessel, wherein a gap is provided between the sealing head and a holding bowl of the vessel holder, in which a gas flow between the holding bowl and the sealing head can be created. The invention also relates to a use of the device and a metered addition method.
Device for metering powder, which comprises a vessel containing powder and a sealing head with a septum for the vessel, and the vessel points downwards with its opening, so that the powder can flow out of the vessel, and the device further has a vessel holder, which serves to hold the sealing head of the vessel, wherein the vessel holder has a cannula for piercing the septum and a gas for fluidizing the downward-flowing powder is fed to the cannula, and further a metering system is provided, which is based on the filling of a volume in a connecting hose separable by valves, wherein the bulk density of the powder in the connecting hose is kept essentially constant by a gas flow varying with time during the fluidization.
Dependencies are inferred from the claim text.