Electrostatic spraying device
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
May 5, 1997
filing date -
Sep 7, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrostatic spraying device for spraying liquids comprises a hollow capillary structure having a convoluted inner surface, one end of which contacts a reservoir of an electrostatically sprayable liquid preferably having a viscosity from 1 to 20.times.10.sup.-6 m.sup.2 /s and a volume resistivity from 2.5.times.10.sup.6 to 5.times.10.sup.8 ohm cm, the other end of which terminates in an atomization tip, and means for applying high voltage to the liquid in order to cause the liquid at the atomization tip to break up into a plurality of electrostatically charged droplets. Cartridges for use in the electrostatic spraying device are also described.
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