A device for collecting dust using highly charged hyperfine liquid droplets formed through an electro-hydrodynamic atomization process is disclosed. In the dust collecting device of this invention, a high voltage is applied to capillaries, set within a dust guide duct and having nozzles at their tips....http://www.google.es/patents/US6471753?utm_source=gb-gplus-sharePatente US6471753 - Device for collecting dust using highly charged hyperfine liquid droplets
Device for collecting dust using highly charged hyperfine liquid droplets