AIR CYLINDER
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United States of America Patent
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Issued Date -
Jun 28, 2012
app pub date -
Mar 9, 2010
filing date -
Sep 9, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An air cylinder that can prevent foreign substances from intruding inside in an environment where fine foreign substances such as dust are scattered. The air cylinder includes, in a through hole of a rod cover, an annular lubricator impregnated with a lubricant so as to supply the lubricant to the rod and a liquid-absorptive annular dust wiper not containing a lubricant and provided for preventing fine foreign substances such as powder stuck to the rod from intruding inside. The lubricator and the dust wiper are disposed air-tightly and slidably in contact with the rod, and the dust wiper is located closer to a leading end of the rod than the lubricator.
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