PUMPING DEVICE
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United States of America Patent
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Issued Date -
Jul 23, 2015
app pub date -
Aug 6, 2013
filing date -
Aug 7, 2012
priority date (Note) -
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Abstract
A pumping device may include a drive device coupled to a feed element via a hydrostatic coupling. The hydrostatic coupling may be configured to control a torque transmission between the drive device and the feed element. The hydrostatic coupling may include a suction side connected to a pressure side via a coupling-fluid-carrying channel. A valve device may be arranged in the coupling-fluid-carrying channel.
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