Patent ID: 11898310
Assignee: VALMET TECHNOLOGIES OY
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 0:
1. A processing plate for a device for mechanically processing lignocellulose-containing fibrous material, the processing plate comprising:
portions forming a front surface, the front surface having an inner periphery and an outer periphery and defining a radial direction from the inner periphery to the outer periphery, the front surface forming a processing surface having projecting parts formed thereon;
wherein at least some of the projecting parts comprise a radially inner part having an inclined ascending wall towards the outer periphery of the processing plate and a radially outer part having an inclined descending wall towards the outer periphery of the processing plate;
wherein the radially inner part and the radially outer part are radially coupled to each other by a ridge along a coupling line between the radially inner part and the radially outer part and wherein the inclined ascending wall and the inclined descending wall are mutually connected only partly so that they have in common only a crest section of the ridge which defines a width of the crest section;
wherein the radially inner part inclined ascending wall defines a first width where it joins the crest section and the radially outer part inclined descending wall defines a second width where it joins the crest section; and
wherein the width of the common crest section is less than at least one of: the first width and the second width.