Mixing element for extrusion operations
AssigneeCase Western Reserve University
InventorsVivek Pandey, Sidney Carson, Joao Maia
Life of this patent
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Abstract
A mixing element for an extruder screw having a width extending in an x-direction of an x-y-z coordinate system, a length extending in a y-direction, and a thickness extending in a z-direction. The mixing element includes a base defining a passage extending along an axis in the y-direction for receiving the extruder screw. Projections extend radially outward from the base and define channels therebetween. The width and the depth of each channel vary along the length of the channel.
Claims26
A mixing element for an extruder screw having a width extending in an x-direction of an x-y-z coordinate system, a length extending in a y-direction, and a depth extending in a z-direction, comprising:
- a base defining a passage extending along an axis in the y-direction for receiving the extruder screw, projections extending radially outward from the base and defining channels therebetween, the width and the depth of each channel varying along the length of the channel.
A mixing element for an extruder screw having a width extending in an x-direction of an x-y-z coordinate system, a length extending in a y-direction, and a depth extending in a z-direction, comprising:
- a base defining a passage extending along and encircling an axis in the y-direction for receiving the extruder screw, projections extending radially outward from the base and defining channels therebetween, the width of each channel varying along the length, each channel having a geometric center in the y-direction, the depth of each channel decreasing from an inlet to the geometric center and increasing from the geometric center to an outlet.
A mixing element for a pair of extruder screws having a width extending in an x-direction of an x-y-z coordinate system, a length extending in a y-direction, and a depth extending in a z-direction, comprising:
- a pair of integrally formed bases each defining a passage extending along an axis in the y-direction for receiving one of the extruder screws, projections extending radially outward from each base and defining channels therebetween, the width and the depth of each channel varying along the length of the channel.
Dependencies are inferred from the claim text.