Apparatus for controlled delivery of powdered solid materials
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United States of America Patent
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Jun 13, 2000
Grant Date -
N/A
app pub date -
Jun 19, 1998
filing date -
Jun 19, 1998
priority date (Note) -
Expired
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Abstract
Apparatus and methods for accurate delivery of relatively small quantities of powdered solid materials. Preferred apparatus comprise: a primary chamber having a lateral surface extending between a first open end and a second open end; a rotating member that is positioned within the primary chamber and extends from a first position within the primary chamber to a second position within the primary chamber; a motor coupled with the rotating member and adapted to effect rotation thereof; a feed chamber having a lateral surface extending between a first open end and a second open end; and an air flow chamber coupled with the primary chamber and having a lateral surface extending between a first open end and a second open end.
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