Powder reservoir for a dental abrasive sprayer
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United States of America Patent
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Apr 26, 2005
Grant Date -
Sep 26, 2002
app pub date -
Mar 21, 2002
filing date -
Mar 23, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A powder reservoir for a dental abrasive blasting apparatus is provided with a discharge valve having a closure body that comprises associated driving means for moving a closure body with a pulsed frequency alternately between a closing position and an opening position of an associated discharge opening of the powder reservoir for discharging the powder into a mixing chamber which is passed by a supply line for compressed air for supplying a handpiece with a mixture of compressed air and abrasive powder particles.
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