Inhaler device counter
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United States of America Patent
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-
Oct 26, 2010
Grant Date -
Mar 18, 2010
app pub date -
Sep 8, 2009
filing date -
Apr 14, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Inhaler counter (20) comprising a counter housing (390), a rocker arm (200) with a pawl (210), the rocker arm being pivotally supported by the housing and arranged to perform a rocker movement in response to a linear actuation motion, a return spring (220) for resetting the rocker arm, a ratchet wheel (230) engagable with the pawl to convert the movement of the rocker arm into an incremental rotational motion of an axle arrangement (240) advancing a display means (60), the axle arrangement further comprising a back rotation prevention means (280) in the form of a spring loaded friction brake and a worm gear, the display means comprising rotatable indicator means (120) with teeth that engage the worm-gear and a stationary scale.
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