What is twin screw extruder claimed?
1. A twin screw extruder comprising:
a dual cylinder housing;
two extruder screws located within said housing positioned and configured so that screw turns and screw lands of a first single screw extruder mesh with respective screw lands and screw turns of a second screw
2. A twin screw extruder according to claim 1 wherein said cell walls are arranged with a slope differing from a slope of said extruder screws.
3. A twin screw extruder according to claim 2 wherein said cell walls are arranged parallel to an axis of said cell rotors.
4. A twin screw extruder according to claim 2 wherein said cell walls are arranged at an angle to an axis of said cell rotors.
5. A twin screw extruder according to claim 1 wherein a free annular space is defined between a terminal end of said screw turns and an initial end of said cell walls.
6. A twin screw extruder according to claim 1 wherein said plurality of cell walls comprises at least five cell walls.
7. A twin screw extruder according to claim 6 wherein s id plurality of cell walls comprises at least six cell walls.
8. A twin screw extruder according to claim 7 wherein said plurality of cell walls comprises at least seven cell walls.
9. A twin screw extruder according to claim 7 wherein adjacent cell walls and said cell rotor exhibits a rounded cross-sectional profile single screw extruder.
10. A twin screw extruder according to claim 9 wherein said profile is a circular arc exhibiting a radius of 0.18 to 0.3 times an external diameter (DA) of said cell rotor including said cell walls.
11. A twin screw extruder according to claim 1 wherein said initial end of said cell walls exhibits a tapered configuration.
12. A twin screw extruder according to claim 1 wherein each of said cell walls comprises a plurality of cell wall segments defining gaps in said cell walls.