Self-energizing seal
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United States of America Patent
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Jul 28, 2015
Grant Date -
Jan 16, 2014
app pub date -
Aug 8, 2012
filing date -
Jul 10, 2012
priority date (Note) -
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Abstract
A self-energizing seal includes a housing and a plurality of annular seal ring segments movable relative to the housing. The annular seal ring segments include a circumferential slot and a plurality of holes defining a flow passage into the circumferential slot. A plurality of self-energizing ring segments are disposed in the circumferential slot. The annular seal ring segments and the self-energizing ring segments establish a seal with the exterior of a pipe and permit movement of the pipe in a direction orthogonal to the axis of the pipe.
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