Global Patent Index - EP 1095704 A1

EP 1095704 A1 2001-05-02 - Electrostatic liquid spraying device

Title (en)

Electrostatic liquid spraying device

Title (de)

Elektrostatische Flüssigkeitssprühvorrichtung

Title (fr)

Dispositif de pulvérisation électrostatique de liquide

Publication

EP 1095704 A1 (FR)

Application

EP 99440297 A

Priority

EP 99440297 A

Abstract (en)

The electrostatic aerosol forming machine has a wick (4) to disperse micro-droplets and fed by capillary action. The wick is in contact with an electrode (7) under high voltage. The wick is made of a material with high electrical resistance to maintain a low current flow, and is placed in a chamber (1). The lower end of the wick is held in a bowl (5) extending through the wall of the chamber.

Abstract (fr)

Dispositif de pulvérisation électrostatique de liquide comportant une mèche (4) pour l'émission de micro gouttes d'allure cylindrique, dont une partie est plongée dans ledit liquide, et dotée d'une extrémité d'émission externe en forme de pointe, alimentée en liquide par capillarité, ladite mèche (4) étant en contact avec une électrode (7) soumise à une haute tension permettant ladite pulvérisation par effet de pointe, caractérisé en ce que la mèche (4), disposée verticalement dans une chambre de réception (1) réalisée en matériau isolant, est alimentée en continu en liquide à émettre, ladite mèche (4), réalisée en un matériau capillaire absorbant ayant une résistance électrique prévue pour maintenir le courant a un niveau de sécurité permettant un contact sans risque, trempant sur sensiblement la moitié inférieure da sa longueur dans le liquide et étant contenue sur sensiblement sa moitié supérieure dans une buse (5) traversant la paroi de la chambre de réception (1), à l'extérieur de laquelle ladite buse (5) s'évase autour de l'extrémité pointue de la mèche (6), la longueur totale de la mèche (4) étant telle que les forces de capillarité sont maintenues constantes, une électrode (7) immergée dans le liquide remplissant la chambre de réception (1) étant en contact avec ladite mèche (4) au voisinage de son extrémité inférieure. <IMAGE>

IPC 1-7 (main, further and additional classification)

B05B 5/025; B05B 5/16

IPC 8 full level (invention and additional information)

B05B 5/025 (2006.01); B05B 5/16 (2006.01)

CPC (invention and additional information)

B05B 5/1608 (2013.01); B05B 5/0255 (2013.01); B05B 5/1691 (2013.01)

Citation (applicant)

None

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1095704 A1 20010502; EP 1095704 B1 20041006; AT 278473 T 20041015; DE 69920914 D1 20041111; DE 69920914 T2 20051013; ES 2230822 T3 20050501

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