Method and apparatus for preventing fluid leakage from a gear case
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United States of America Patent
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Jul 18, 1989
Grant Date -
N/A
app pub date -
May 20, 1988
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is disclosed for preventing leakage of a fluid such as a lubricant from a gear case. In this method and apparatus, the ambient pressure inside the gear case is maintained slightly lower than the air pressure outside the gear case. By maintaining this pressure differential, air flows from outside the gear case into the gear case through any openings from which lubricant would otherwise leak. Leakage of the lubricant through such openings in the gear case is thereby prevented.
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