Diaphragm vacuum pump
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United States of America Patent
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Jul 29, 2014
Grant Date -
Mar 22, 2012
app pub date -
Sep 15, 2011
filing date -
Sep 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A diaphragm vacuum pump has an electrically operated drive unit and a vacuum diaphragm, which separates a pump chamber into a drive-side part and a drive-remote part and which can be deflected by means of a movable part of the drive unit. The drive unit is an electromagnetic drive unit and the vacuum diaphragm is deflected in the direction of a linear movement generated electromagnetically in the drive unit. Preferably, a ventilation valve is also actuated the movable part. The vacuum pump is relatively small and compact and operates quietly. The vacuum pump is suitable in particular for “hands-free” applications of breastpumps.
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