Hydraulic damper
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United States of America Patent
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May 3, 1994
Grant Date -
N/A
app pub date -
Jun 10, 1992
filing date -
Jun 11, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulic damper is disclosed which has a contraction phase one-way passage way which allows a flow of damping fluid in contraction phase, an extension phase one-way passage way which allows a flow of damping fluid in extension phase, and a valve element in the form of a hollow control rod. The valve element has a neutral position in which both of the contraction phase and extension phase one-way passage ways are open, a first displaced position in which the extension phase one-way passage way is restricted with the contraction phase one-way passage way left open, and a second displaced position in which the contraction phase one-way passage way is restricted with said extension phase one-way passage way left open.
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