ECCENTRIC SCREW PUMP
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United States of America Patent
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Issued Date -
Mar 4, 2010
app pub date -
Aug 26, 2009
filing date -
Aug 27, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to an eccentric screw pump (1) comprising an eccentric screw (5) and an elastic element (4) surrounding the latter as well as a drive device, wherein the eccentric screw (5) or the elastic element (4) surrounding the latter comprises a magnetic/magnetisable part (8) so that force transmission between the drive device and the eccentric screw (5) or the elastic element (4) is exclusively effected via magnetic field forces and wherein a magnetic/magnetisable part (8) of the eccentric screw (5) or the elastic element (4) required for the drive is not in contact with the fluid to be delivered, more preferably protected from direct contact with the fluid with a plastic covering.
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