Electrostatic spray device

Details Electrostatic spray device Electrostatic spray device

2005-03-15

2005-03-15

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Electrostatic type

C239S690100, C239S691000, C239S708000, C239S332000

Reexamination Certificate

active

06866212

ABSTRACT:
An electrostatic spraying device being configured and disposed to electrostatically charge and dispense a liquid composition from a supply to a point of dispersal, wherein the device comprises:a reservoir configured to contain the supply of liquid composition;a nozzle to disperse the liquid composition, the nozzle being disposed at the point of dispersal;a channel disposed between the reservoir and the nozzle, wherein the channel permits the electrostatic charging of the liquid composition upon the liquid composition moving within the channel;a high voltage power supply electrically connected to the power source; anda high voltage electrode electrically connected to the high voltage power supply, wherein a portion of the high voltage electrode is disposed between the reservoir and the nozzle, and wherein the high voltage electrode electrostatically charges the liquid composition within the channel at a charging location,wherein the nozzle pathway comprises an outlet path disposed adjacent to the nozzle, the outlet path having a diameter of from about 0.1 mm to about 1 mm and being a point or having a length of from about 0 mm to about 5 mm, and a main path disposed between the outlet path and the charging location, the main path having a diameter greater than the outlet path to about 5 mm and being straight or outwardly tapered towards the charging location at an angle of from about 0 to about 10 degrees.

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patent: WO 0112335 (2001-02-01), None
patent: WO 0112336 (2001-02-01), None
patent: WO 02055212 (2002-07-01), None

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