Breathing for single acting hydraulic cylinders
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United States of America Patent
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Jun 9, 2009
Grant Date -
Sep 27, 2007
app pub date -
Mar 15, 2007
filing date -
Mar 27, 2006
priority date (Note) -
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Abstract
A single acting hydraulic cylinder apparatus includes a mechanism operated by a single acting hydraulic cylinder, the mechanism including a hollow member. A breathing chamber is provided by sealing at least a portion of the hollow member such that outside air is prevented from entering the breathing chamber. A pressurized port of the hydraulic cylinder is adapted for connection to a pressurized hydraulic fluid source, and an un-pressurized breathing port of the hydraulic cylinder is connected to the breathing chamber such that air can flow between the breathing port and the breathing chamber.
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