PISTON ASSEMBLY FOR A FLUID TRANSLATING DEVICE
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United States of America Patent
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Issued Date -
Jun 6, 2013
app pub date -
Dec 1, 2011
filing date -
Dec 1, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A piston assembly for use in the cylinder block of a fluid translating device such as a hydraulic pump or motor. The piston assembly has an inner core having a working end, a driven end and an axial stem. An outer sleeve is positioned about an axial stem of the inner core of the piston assembly. The outer sleeve is composed of a material, which is made from a material being lighter weight than steel, and secured to the axial stem. A slipper includes a piston receiving portion for pivotally receiving the driven end of the piston assembly. The piston assembly and slipper include a lubrication passage providing a path for pressurized fluid.
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