FORCE-EQUALIZATION STATIONARY-COIL ACTUATOR FOR FLUID MOVERS
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United States of America Patent
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Issued Date -
Sep 5, 2013
app pub date -
Oct 7, 2011
filing date -
Oct 8, 2010
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Abstract
A fluid mover includes a first dynamic armature attached to a flexible member and a second dynamic armature attached to a second flexible member. The fluid mover also includes a housing and first and second flexible members being attached to the housing so as to form a fluid chamber volume bounded by the housing and first and second flexible members. A stationary current carrying coil positioned between first and second armatures. The current carried by the coil generates a magnetic force acting on the armatures and wherein coil and armatures are positioned and configured so as to ensure that the instantaneous magnetic force experienced by the two armatures will always be identical regardless of the relative positions of the armatures and regardless of the time varying properties of the current.
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