Annular seal member
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United States of America Patent
Stats
-
Aug 26, 2014
Grant Date -
Nov 29, 2012
app pub date -
May 25, 2012
filing date -
May 25, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An annular seal member configured to seal a gap between a shaft hole and a shaft inserted into the shaft hole, the annular seal member comprises: an annular base part; an annular lip, which includes a lip edge that is configured to be contact with one of a hole face of a shaft hole and an outer periphery of a shaft, the one of which is a seal mating face; a first convex part, a second convex part and a passage recess, which is provided at a face of the base part facing the seal mating face; a concave part, which is formed at a position between the second convex part and the base end portion of the annular lip, and which has a circumferential size larger than a recess width of the passage recess.
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