Dispenser for substances in powder or granular form
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United States of America Patent
Stats
-
Jan 23, 2001
Grant Date -
N/A
app pub date -
Nov 12, 1998
filing date -
Nov 12, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The dispenser enables a multiplicity of doses of a substance in powder or granular form contained in a reservoir to be dispensed in succession. To form a dose a shaft must be rotated relative to a part of the dispenser, the shaft having to be substantially vertical while the dose is being formed. Between the shaft and said part of the dispenser there is provided a joint which prevents relative rotation if the shaft is not substantially vertical, or which although allowing relative rotation enables a signal to be emitted which can be sensed by the user. In particular the dispenser can be a multi-dose inhaler for medicaments.
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