Concentric seal rings
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United States of America Patent
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-
Jan 20, 1987
Grant Date -
N/A
app pub date -
Dec 19, 1985
filing date -
Dec 19, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plurality of concentric sealing rings on the face of a static sealing surface provides a positive seal when used with Teflon film or like materials that have a tendency to cold flow under pressure into recesses created by the concentric sealing rings.
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