The patterning and blending system according to this invention superimposes two or more lateral channels distributing diverse liquids over a multitude of crosswise oriented feeder chambers with the option to block the flow connection completely or to connect each feeder chamber with any or all of the...http://www.google.es/patents/US3995581?utm_source=gb-gplus-sharePatente US3995581 - Patterning and blending with lateral distribution channels and crosswise feeder systems
Patterning and blending with lateral distribution channels and crosswise ...