Drive mechanism for an indicating device
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United States of America Patent
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-
Dec 27, 2011
Grant Date -
Nov 5, 2009
app pub date -
May 4, 2009
filing date -
May 5, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An indicating device includes a drive member and a driven member. The driven member is non-rotatably immobilized by the successive engagement of a convex surface on the drive member with a plurality of concave surfaces on the driven member. The driven member further includes a plurality of protrusions that are successively received in a recess of the drive member as an engagement member engages the driven member and rotates the driven member. The driven member has dispensing indicia. In another aspect, an indicating device includes an indicator member having dispensing indicia. A stop member is selectively engaged with successive ones of a plurality of stop surfaces on the indicator member such that the indicator member is non-rotatable. Methods for indicating the amount of substance that have been dispensed from or remain in a container are also provided.
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