Shutter having magnet-driven drive ring
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United States of America Patent
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Jul 22, 2014
Grant Date -
Jan 30, 2014
app pub date -
Oct 1, 2013
filing date -
Jan 26, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A shutter assembly includes a drive ring having a permanent magnet disposed thereon. The shutter assembly also includes a solenoid defining a gap between first and second magnetic poles thereof, the drive ring being disposed coplanar with the solenoid and being rotatable in response to a magnetic field created between the first and second magnetic poles. The shutter assembly also includes a plurality of shutter blades configured to transition between an open position and a closed position in response to rotation of the drive ring. The shutter assembly further includes a base plate separating the plurality of shutter blades from at least one of the drive ring and the solenoid.
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