Dosator apparatus for filling a capsule with dry powder
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United States of America Patent
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May 9, 2017
Issued Date -
N/A
app pub date -
May 8, 2015
filing date -
Nov 9, 2012
priority date (Note) -
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Abstract
The invention relates to a dosator which comprises a tapered elongate cavity; a stationary plunger disposed within the cavity; a removable mesh screen disposed between the stationary plunger and the bottom of the dosator; a dosator chamber defined between the mesh screen and the bottom of the dosator for receiving powder from a powder source and holding the powder until it is expelled into the capsule; at least one vacuum pump operably linked to the dosator and capable of drawing dry powder into the dosator chamber from a powder source, compacting the powder into a slug of powder having a predetermined bulk density; and at least one source of positive pressure operably linked to the dosator and capable of providing positive pressure to expel the powder slug from the dosator and methods of filling capsules.
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