Levitation magnetic actuator
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United States of America Patent
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Nov 16, 2010
Grant Date -
Jul 6, 2006
app pub date -
Jul 15, 2004
filing date -
Jul 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This is a magnetic actuator including a mobile magnetic portion (20), a fixed magnetic portion (10) provided with at least two attraction areas (11, 12) for the mobile magnetic portion (20), and means (30) for triggering the displacement of the mobile magnetic portion (20), the mobile magnetic portion (20) being in levitation when it is not in contact with an attraction area (11, 12). The mobile magnetic portion (20) includes a magnet-based part (200) with reduced magnet weight, this part (200) having an overall volume, and a mass which is less than the one it would have if its overall volume was totally occupied by the magnet.
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