MECHANICAL SEAL ARRANGEMENT HAVING AN IMPROVED SECONDARY SEAL
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United States of America Patent
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Issued Date -
Dec 24, 2015
app pub date -
Nov 7, 2013
filing date -
Nov 15, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention refers to a mechanical seal arrangement, comprising: a rotatable seal ring (2), a stationary seal ring (3) and a secondary seal device (5), said secondary seal device (5) being made in one piece and comprising a secondary seal (51) and a ring element (52) of different materials, and the ring element (52) being arranged on the secondary seal (51) on a side directed to the stationary seal ring (3).
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