Non-contacting labyrinth seal assembly
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jul 30, 2015
app pub date -
Jan 29, 2014
filing date -
Jan 29, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A labyrinth seal assembly is provided for forming a seal between a shaft and housing. The seal assembly includes a stationary element configured to be coupled to the housing and having an annular shape defining a space through which the shaft extends; a rotary element disposed within the space and coupled to the shaft so as to rotate therewith, the rotary element having an outer surface that extends in an axial direction and having a groove formed therein, the rotary element being disposed between the stationary element and the shaft; and a valve element mounted within the groove and disposed between the stationary element and the rotary element when assembled to form the seal. The valve element is formed from an elastomeric material.
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