Ring seal including a core surrounded by a metal jacket
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United States of America Patent
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-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Oct 31, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ring seal contains a core made from an elastic organic polymer and a metal jacket having a U-shaped sectional shape, which jacket surrounds the core to prevent transfer of a substance generated from the core into the sealed space. The seal of the present invention does not release a foreign material into the sealed space, nor does it require a great force for clamping. Accordingly, it is useful as a vacuum seal that achieves miniaturization and reduced weight of a vacuum apparatus. In particular, by making the sectional shape of the metal jacket a U shape, the core can be easily detached and attached for fitting after forming the jacket, and the inside of the jacket can be washed easily.
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