Patent ID: 11866884
Assignee: nan
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  A | IPC A  D

Claim 19:
20. A headbox for manufacturing a substrate, the headbox including a machine direction and a cross direction, the headbox comprising:
an inlet;
an outlet;
an internal chamber; and
a divider at least partially within the internal chamber, the divider comprising:
a first surface;
a second surface, the second surface being opposite from the first surface;
a width defined in the cross direction that is at least 90% of a width of the internal chamber of the headbox;
a length defined in the machine direction; and
a first cross-directional divider extending away from the first surface of the divider, the first cross-directional divider comprising a cross-directional thickness and a machine-directional length;
wherein the divider separates a first z-directional layer of the headbox from a second z-directional layer of the headbox; and
wherein the first cross-directional divider separates a first zone of the headbox from a second zone of the headbox in a cross-directional manner, the first zone and the second zone being in the first z-directional layer.