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Rauwendaal; Chris J.
Los Altos Hills, CA
No. of patents:

Patent Number Title Of Patent Date Issued
6709147 Intermeshing element mixer March 23, 2004
A mixing section (10,50,60) for mixing material in an extruder (8) having a barrel (32), The mixing section (10,50,60) includes a screw (14) having a central shaft (16), and a floating annular sleeve (12) located between the screw (14) and the barrel (32), and surrounding a portion of th
6136246 Screw extruder with improved dispersive mixing elements October 24, 2000
A screw extruder (10) having a barrel (18) which has a bore (26) defining an inner surface (44) and one or more extruder screws (28), positioned within the bore (26). The extruder screw or screws (28) include a central shaft (34) and one or more screw flights (30). The extruder screw or

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