Discharge device with discharge stroke which reduces volume of media and dosage chambers
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United States of America Patent
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Jan 8, 2013
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N/A
app pub date -
Apr 2, 2010
filing date -
Apr 2, 2009
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Expired
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Abstract
A discharge device for liquid media having housing sections movable relative to one another along a total stroke between a non-actuated rest position and an actuated end position and together forming a manual actuating device. A media reservoir stores the medium prior to discharge, and a conveying device includes a discharge opening and a dosage chamber. The actuating and conveying devices are operatively coupled such that during a first partial stroke of the discharge actuation starting from the rest position the media reservoir and the dosage chamber are in communicating connection and during a second partial stroke of the discharge actuation following the first partial stroke the media reservoir and the dosage chamber are separated, the volume of the dosage chamber and the media reservoir being reduced by the second partial stroke of the discharge actuation.
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