Rotation shaft seal
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United States of America Patent
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N/A
Issued Date -
Mar 20, 2008
app pub date -
Aug 6, 2007
filing date -
Sep 15, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotation shaft seal provided with a seal element having an axis-orthogonal wall portion at right angles with an axis, a curved middle portion which is continuing from an inner end of the axis-orthogonal wall portion and curving toward a high-pressure side, and a sealing lip portion continuing from an end of the middle portion. The seal element is provided with a thin wall portion on the middle portion. Further, a supporting member, having a receiving face to contact the thin wall portion from a low-pressure side and support the middle portion, is provided.
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