BUFFER RING
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Mar 26, 2013
filing date -
May 16, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A buffer ring includes an annular body portion 11 that makes close contact with a side wall face 131b of an annular groove 131; an inner peripheral lip 12 that extends toward a sealed fluid side O from an inner peripheral end portion of the body portion 11; and an outer peripheral lip 13 that extends toward the sealed fluid side O from an outer peripheral end portion of the body portion 11 and having an outer peripheral end portion making close contact with a groove bottom face 131a of the annular groove 131, the outer peripheral lip 13 being lower in stiffness than the inner peripheral lip 12, wherein a plurality of protrusions 14 that make close contact with the groove bottom face 131a of the annular groove 131 are provided on an outer peripheral face of the body portion 11 at intervals in a circumferential direction.
First Claim
Other Claims data not available
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F15B Class
- 20.35 % this patent is cited more than
- 10 Age