Level compensator having a vacuum pump therein
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United States of America Patent
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Mar 20, 2012
Grant Date -
Feb 11, 2010
app pub date -
Jan 29, 2008
filing date -
Mar 27, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a level compensator in a vacuum system including a fixing tube fixed to a structure, a hollow slider disposed in the fixing tube so as to move in a vertical direction, and a spring disposed between the fixing tube and the slider so as to elastically support the slider, in which a vacuum pump having an inflow port at one end, an outflow port at the other end, and an inhalation hole in a side wall thereof is mounted inside the slider. When compressed air guided to an upper opening in the slider passes between the inflow port and the outflow port and is discharged through a discharging port formed on the side wall of the slider, air is induced to the space inside the slider from the lower portion of the slider, and is discharged along with the compressed air.
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