Vacuum unit and method for producing a filter for a vacuum unit
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United States of America Patent
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Issued Date -
Dec 14, 2006
app pub date -
Jun 6, 2006
filing date -
Jun 10, 2005
priority date (Note) -
Abandoned
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Abstract
A main body section is provided with a filter for removing dust or the like contained in a pressure fluid, and a silencer for reducing an exhaust sound produced when pressure fluid is discharged from an ejector, which functions as a vacuum-generating mechanism. The filter is formed with a substantially elongated circular cross section having a pair of circular arc sections. Further, the filter is formed in a two-layered structure, composed of an inner layer and an outer layer, obtained by winding fiber materials having different material qualities respectively.
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