Patent ID: 8870561

Claim:
A layer sequence repeater module including a cell of axially disposed thin annular disks for a co-extrusion die, the cell of axially disposed thin annular disks comprising: at least one first cap disk including at least two entry openings; at least one second cap disk including a plurality of inner flow openings and at least one outer flow opening corresponding with one of the at least two entry openings of the first cap disk; at least one distribution disk, the distribution disk including a distribution inlet opening corresponding with one of the at least two entry openings of the first cap disk or one of the at least one outer flow opening of the second cap disk, a plurality of outlet openings corresponding with the plurality of inner flow openings of the second cap disk, and a channel connecting the distribution inlet opening and the plurality of outlet openings; a plurality of spreader disks, each spreader disk including at least one outer opening, a plurality of inner openings including a plurality of selections of inner openings, and a flow region connected to a first selection of inner openings; and at least one repeater disk in alternating sequence with the spreader disks and including a plurality of outer passage openings disposed around a circumference thereof and a plurality of circular inner passage openings disposed in a pattern that is concentric with the plurality of outer passage openings.