PUMP DEVICE
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United States of America Patent
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N/A
Issued Date -
Jan 31, 2013
app pub date -
Jul 24, 2012
filing date -
Jul 25, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pump device may include a stator provided with a stator core having a ring-shaped part on a center side and a drive coil wound around the stator core, and a partition wall disposed configured to separate a pump chamber from the stator. The partition wall is provided with a protruded part in a bottomed tube-like shape which is protruded on an inner side of the ring-shaped part and an outer peripheral face of a tube shaped part structuring the protruded part is formed with a plurality of protruding parts protruding to an outer side in a radial direction. The stator core is fixed to the protruded part in a state that the plurality of the protruding parts is press-fitted to the ring-shaped part.
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