Electrostatic spraying device

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 5/025 (2006.01) A61L 9/14 (2006.01)

Patent

CA 2168436

An electrostatic spraying device is provided with a container (16) for the liquid to be sprayed and a capillary structure (22) extending into the container. To maintain a substantially constant liquid level at the location where liquid is drawn into the capillary structure, the container is partitioned into two chambers one (68) of which is isolated from atmosphere and the other (66) of which is in communication with atmosphere. The capillary structure (22) extends through one chamber and the arrangement is such that the liquid level at the location where the capillary structure communicates with the liquid is maintained substantially constant over a wide range of variation of the liquid level within the other chamber. The upper end of du capillary structure may be provided with an oblique end face (50; 70, 72) to facilitate dispersal of the spray into the surroundings.

Un dispositif de pulvérisation électrostatique est doté d'un réservoir (16) contenant le liquide à pulvériser, ainsi que d'une structure capillaire (22) s'étendant à l'intérieur dudit réservoir. Afin de maintenir un niveau de liquide sensiblement constant à l'emplacement où le liquide est aspiré dans la structure capillaire, le réservoir est séparé en deux chambres, l'une (68) isolée de l'atmosphère de l'autre (66) en communication avec l'atmosphère. La structure capillaire (22) s'étend dans une des chambres et elle est disposée de telle manière que le niveau du liquide, à l'endroit où elle communique avec celui-ci, est maintenu sensiblement constant sur une large gamme de variations du niveau du liquide à l'intérieur de l'autre chambre. L'extrémité supérieure de la structure capillaire peut être dotée d'une face d'extrémité oblique (50; 70, 72) afin de faciliter la dispersion des fines gouttelettes dans l'espace environnant.

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