Seal device
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United States of America Patent
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Nov 20, 2007
Grant Date -
May 26, 2005
app pub date -
Nov 19, 2004
filing date -
Nov 20, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A seal device that includes a seal portion protruding from a resilient body member in a common direction with a seal lip member. The seal portion being shorter in length and having a thickness that is thinner than the lip seal member. A gap is defined between an action diameter surface of the seal lip member and one of either a retainer portion or a ring member, wherein the seal portion contacts the other one of the retainer portion or ring member. A pressure receiving groove is defined between the seal lip member and the seal portion, and is in communication with the gap.
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