Patent ID: 11905659
Assignee: VALMET AB
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 0:
1. A refiner segment for a refiner of lignocellulosic material, the refiner segment comprising:
a first bar having a width w and comprising a first bar weakening section, the first bar weakening section comprising two planar faces defining a wedge-shaped recess with a tip and a base, the two planar faces meeting at the tip, the tip being separated from the base by a depth d, where 0.5w≤d≤w;
a second bar;
a first dam extending between the first bar and the second bar; and
a second dam extending between the first bar and the second bar; wherein:
the first bar, the second bar, the first dam, and the second dam define a first box-shaped region;
the first bar weakening section is positioned within the first box-shaped region; and
the first bar weakening section is the only bar weakening section positioned within the first box-shaped region.