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1. WO1992015339 - ELECTROSTATIC VAPOR-AEROSOL GENERATOR

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[ EN ]

1. Apparatus for generating electrostatically charged aerosols and vapors comprising:
a porous, capillary unit of elongated configuration having a vapor dispensing end;
an electrode in contact with said capillary unit;
electrical contact means on said electrode for connecting said electrode to a source of high voltage, direct current (DC) power; and
means for supplying liquid to said capillary unit, whereby liquid passes through said porous capillary unit in proximity to said electrode and is electrostatically charged and dispensed as vapor or aerosol from said dispensing end of said capillary unit.

2. Apparatus as defined in claim 1 wherein:
said porous, capillary unit is comprised of a plurality of fiber' filaments arranged in a tubular configuration.

3. Apparatus as defined in claim 2 wherein:
said fiber filaments are braided into capillament bundles, the extremities of which at said dispensing end of said capillary unit are open and unbraided to provide freely extending, filament tip extremities.

4. Apparatus as defined in claim 2 wherein:
said capillary unit further comprises a central, elongated core made up of a plurality of semi- conductive capillaments through which liquid may pass, with said central core being positioned inside of said tubular configuration of fiber filaments in electrically conductive relation with said electrode.

5. Apparatus as defined in claim 4 wherein:
said capillaments each comprise a bundle of fibers in which a wire conductor is embedded.

6. Apparatus as defined in claim 5 wherein:
said electrode is elongated and extends at least partially into said core substantially centrally thereof.

7. Apparatus as defined in claim 2 wherein:
said capillary unit is contained within an outer, liquid impervious vessel which holds a supply of liquid and comprises said means for supplying liquid to said capillary unit.

8. Apparatus as defined in claim 7 wherein:
said fiber filaments terminate at their lower ends in end segments which extend into the liquid within the vessel.

9. Apparatus as defined in claim 7 and further including an electrically insulating holder having an upwardly opening recess within which said vessel is removably received for vapor dispensing operation, said holder having electrical connector means therein for connecting said electrical contact means OR said electrode to a power supply wire.

10. Apparatus as defined in claim 4 wherein:
said capillary unit is contained and protected in an outer, liquid impervious tubular member.

11. Apparatus as defined in claim 2, and further including:
a tubular passage within which said capillary unit is positioned;
said means for supplying liquid comprises a liquid supply line connected to said capillary unit; and means for delivering a pressurized stream of air into said tubular passage for flow over said capillary unit and removal of vapors emitted from said capillary unit.

12. Apparatus as defined in claim 11 wherein:
said means for delivering a pressurized stream of air comprises a blower housing connected to one end of said tubular passage, with the opposite end of said tubular passage being connected to a duct of a building air handling system, whereby the space within the building may be conditioned to enhance air quality by supplying an aromatic essence, deodorant, disinfectant, fumigant, fungicide, insecticide or bactericide substance as said liquid.

13. Apparatus as defined in claim 11 wherein:
said capillary unit is comprised of a plurality of fiber filaments arranged in a tubular configuration, and a central, elongated core made up of a plurality of semi-conductive capillaments through which liquid may pass, with said core being positioned inside of said tubular configuration of fiber filaments in electrically conductive relation with said electrode.

14. Apparatus as defined in claim 13 wherein: said capillaments each comprise a bundle of fibers in which a wire conductor is embedded.

15. Apparatus for generating electrostatically charged vapors and aerosols for release into a room comprising:
a porous, capillary unit of elongated configuration having a vapor dispensing end terminating in a plurality of filaments;
an electrode in contact with said capillary. unit;
electrical contact means on said electrode for connecting said electrode to a source of high voltage, direct current (DC) power;
means for supplying liquid to said capillary unit, whereby liquid passes through said capillary unit in proximity to said electrode and is electrostatically charged and dispensed as a vapor or aerosol from said dispensing end of said capillary unit, said liquid supplying means comprising an outer, liquid impervious vessel which holds a supply of liquid; and
an electrically insulating holder having an upwardly opening recess within which said vessel is removably received for vapor dispensing operation.

16. Apparatus as defined in claim 15 wherein: said capillary unit is comprised of a plurality of fiber filaments arranged in a tubular configuration.

17. Apparatus as defined in claim 16 wherein:
said capillary unit further comprises a central, elongated core made up of a plurality of semi- conductive capillaments through which liquid may pass, said central core being positioned inside of said tubular configuration of fiber filaments in electrically conductive relation with said electrode.

18. A method of generating air quality enhancing vapors or aerosols and dispensing them into the air handling system of a building comprising:
placing a vapor emitter having a vapor dispensing end in air flow communication with the air handling system of a building, said vapor emitter comprising;
liquid passage means;
means for supplying liquid to said liquid passage
means;
means for imparting an electrostatic charge to
liquid in said emitter; and
air flow passage means in fluid flow
juxtaposition to said liquid passage means;

directing a pressurized flow of liquid to said liquid passage means from said means for supplying liquid, said liquid being selected from the group of air quality enhancing substances comprising aromatic essences, deodorants, disinfectants, fumigants, fungicides, insecticides, and bactericides;
applying an electrostatic charge to liquid in said emitter and thereby generating vapors or aerosols; and
passing a stream of pressurized air through said air flow passage means and thereby picking up said electrostatically charged vapors in said air stream; and thence directing said stream of pressurized air into said air handling system.