Patent ID: 11933110
Assignee: LANKHORST ENGINEERED PRODUCTS B.V.
Field: Civil engineering (Other fields)
Classification: CPC E  B | IPC B  E

Claim 4:
5. The suppression element according to claim 1, wherein the suppression element comprises a positioning structure, which is configured for positioning of suppression elements of said tube, said suppression elements being adjacent to one another in the longitudinal direction, in fixed mutually staggered positions relative to one another in the circumferential direction, in such manner that, for each pair of tube segments which in said tube are adjacent to one another in the longitudinal direction, each time the at least one first fin longitudinal edge portions and the at least one second fin longitudinal edge portions of the suppression elements of one tube segment of such a pair of tube segments concerned are lying helically in line relative to first and second fin longitudinal edge portions of the other tube segment of said pair of tube segments concerned.