Patent ID: 7810986
Filing Date: 2010-10-12
Classification: B01F,B29B,B29C,B29K

Abstract:
1. A blender system comprising: one or more individual metering devices, each metering device comprising an individual material hopper for containing a granular polymer material ingredient to be blended; a starve-fed mixing chamber coupled to the metering devices, the starve-fed mixing chamber configured to receive the granular material ingredients from each metering device and mix the ingredients, wherein the starve-fed mixing chamber is a gravimetric cascade mixing chamber, configured to allow the ingredients to freely fall through and out of the starve-fed mixing chamber by gravity and not accumulate in the starve-fed mixing chamber; a liquid ingredient dosing device disposed within the starve-fed mixing chamber for injecting a liquid ingredient into the path of the granular material ingredients as they fall through or out of the starve-fed mixing chamber.