AN INHALER
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United States of America Patent
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Issued Date -
Mar 3, 2016
app pub date -
Mar 25, 2014
filing date -
Mar 26, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An inhaler comprising a reservoir of inhalable composition, an outlet valve to control the flow of composition from the reservoir, the valve outlet orifice having a maximum dimension h, measured in the direction of opening when fully opened; an expansion chamber downstream of the valve having a length L and diameter D measured half way along the expansion chamber; and an exit orifice at the downstream end of the expansion chamber, the orifice having a length l and a diameter d; wherein 0.1
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