Method, a device and a system for metering of powder
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United States of America Patent
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Jul 22, 2014
Grant Date -
Oct 20, 2011
app pub date -
Dec 19, 2008
filing date -
Dec 19, 2008
priority date (Note) -
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Abstract
A method, device and system for metering powder material from a powder material source by a metering device connected to the source. The device is charged from the source with a batch of powder material in a charging configuration. The batch is discharged from the device in a discharging configuration. The source is connected with a metering piston space in the charging configuration via a first channel of a fixed metering channel hub. The volume of the space is controlled between a metering piston and a hub peripheral surface by controlling the piston position in the space, to charge the volume with material by gravity. The metering space is turned around the hub, to the charging configuration. The volume filled with material is enclosed until reaching the discharging configuration. The metering piston space is connected with a discharge opening via a second channel of the hub for discharging the material.
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