Electrospraying/electrospinning array utilizing a replacement array of individual tip flow restriction
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United States of America Patent
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Sep 25, 2012
Grant Date -
Mar 25, 2010
app pub date -
Nov 30, 2009
filing date -
Dec 5, 2006
priority date (Note) -
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Abstract
An electrohydrodynamic spraying or spinning deposition system, which includes a common source of pressurized liquid within a manifold, and an array of 2 or more spraying tips, each tip being fed from the common source of pressurized liquid to create a liquid flow path. An individual flow impedance device is disposed within each tip's individual liquid flow path from the pressurized liquid source into each spraying tip. The individual flow impedance devices are disposed within a replaceable sheet, which can be easily cleaned or changed to accommodate the instance liquid viscosity and composition. A high voltage source is applied to create a high voltage potential applied between the tip array and a deposition surface.
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