A stream of mixed particulates of two or more materials having different induction heating characteristics (i.e., distinct thermal, dielectric strength and/or loss tangent characteristics), such as recycled glass cullet including fragments of glass mixed with fragments of glass-like contaminants such...http://www.google.es/patents/US6112903?utm_source=gb-gplus-sharePatente US6112903 - Cullet sorting by differential thermal characteristics
Cullet sorting by differential thermal characteristics
