Media isolation seal system
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United States of America Patent
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N/A
Issued Date -
Oct 24, 2002
app pub date -
Mar 26, 2002
filing date -
Mar 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A media isolation seal system for sealing between a housing and a shaft to prevent passage of pressurized abrasive media includes a floating seal disposed between the housing and the shaft for contact the pressurized abrasive media and preventing passage other media thereby. A rear seal disposed between the housing and the shaft at a spaced apart distance from the floating seal as provided along with a lubricating fluid disposed between the floating seal and the rear seal for transferring pressure to the rear seal and enabling the floating seal to have a zero differential there across.
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