Patent ID: 6422733
Filing Date: 2002-07-23
Classification: B01F,B29B,B29K

Abstract:
An internal mixer (46) for mixing petrochemical materials and other ingredients comprising a mixer body, a mixing chamber (14) in said body, a throat opening (42) for charging said mixer, a discharge opening (18â€²) for discharging said mixer, a ram weight (50), a hopper (48) and a piston-cylinder assembly (52) for urging said ram weight (50) into said throat opening (42) and applying pressure to said petrochemical materials and said other ingredients in said mixing chamber (14), said mixing chamber (14) having a volume not over 8.36 cubic feet (237 liters), characterized by said throat opening (42) having an area of at least 576 square inches (3.715 sq. cm), said hopper (48) having a cross sectional area of at least 576 square inches (3.715 sq. cm), and said ram weight (50) having an area of at least 576 square inches (3.715 sq. cm).