Piston pump device
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United States of America Patent
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Jul 22, 2014
Grant Date -
Dec 8, 2011
app pub date -
Mar 24, 2011
filing date -
Jun 3, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A piston pump device has a support unit, a pump cylinder, and a pump piston arranged in the pump cylinder. The pump cylinder has a longitudinal center axis, and a cylinder bottom arranged perpendicular to the longitudinal center axis. The pump piston is movable relative to the cylinder bottom, and the pump cylinder is secured on the support unit by a securing unit. The securing unit has a leaf spring, which permits a pivoting movement of the longitudinal center axis of the pump cylinder relative to the support unit. The piston pump device is wear-resistant and runs quietly. When used as a suction pump, the piston pump device additionally permits a controllable air flow until the pump comes to a stop.
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