Pressurized bearing seal assembly
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United States of America Patent
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-
Apr 26, 1988
Grant Date -
N/A
app pub date -
Sep 5, 1986
filing date -
Sep 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressurized bearing seal which uses pressurized air (1) to expand a sealing member which surrounds a shaft supported by the bearing to create a seal between the shaft and bearing, and (2) for an air purge from the bearing along the shaft to prevent intake of foreign particles into the bearing along the shaft. A ring assembly, which is secured to the bearing, surrounds the expandable member and has a conduit formed therein for purging or bleeding pressurized air along the shaft to the atmosphere.
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