A generator for producing droplets of liquid by subjecting a confined body of such liquid to varying pressures at a given frequency and causing such liquid to issue from a discharge orifice first as a continuous stream and thereafter to break up into a succession of separate droplets. A particular use...http://www.google.es/patents/US4005435?utm_source=gb-gplus-sharePatente US4005435 - Liquid jet droplet generator
