Patent ID: 11963851
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  D | IPC A  D

Claim 13:
14. A headbox including a machine direction and a cross direction, the headbox comprising an inlet, an outlet, and at least one flow section, the at least one flow section comprising an interior, the interior comprising a machine directional side profile including a first side profile and a second side profile, the second side profile being opposite from the first side profile and spaced apart from the first side profile in the cross direction, the first side profile and the second side profile each comprising:
a first portion being convex to the interior of the at least one flow section; and
a second portion being concave to the interior of the at least one flow section, wherein the first portion is closer to the inlet than is the second portion;
a flow spreading portion, the flow spreading portion being closer to the inlet than is the first portion and providing an increasing width in the at least one flow section away from the inlet.