OIL RETAINING AND LUBRICATING STRUCTURE OF A FAN
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United States of America Patent
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Issued Date -
Dec 21, 2006
app pub date -
May 26, 2006
filing date -
Jun 15, 2005
priority date (Note) -
Abandoned
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Abstract
An oil retaining and lubricating structure of an electric fan is disclosed to include a hub having a center barrel and a receiving chamber defined in the center barrel, a shaft rotatably mounted in the center barrel of the hub, an axle bearing mounted in the receiving chamber to support the shaft in the center barrel, and an elastic porous oil retainer mounted in the receiving chamber around the shaft and retaining lubricating oil for lubricating the shaft and the axle bearing upon rotation of the shaft with a fan blade assembly relative to the hub.
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