Patent ID: 11927009
Assignee: SAINT-GOBAIN PLACO
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 10:
11. An apparatus for forming a sheet material into a profile comprising an array of angular corrugations extending across at least 25% of the surface of the profile of the corrugation construction element as claimed in claim 1, the apparatus comprising:
a first roller comprising:
a first corrugation region for forming one part of a first set of angular corrugations, and
a second corrugation region for forming one part of a second set of angular corrugations; and

a second roller comprising:
a third corrugation region for forming the other part of the first set of angular corrugations, and
a fourth corrugation region for forming the other part of the second set of angular corrugations;

wherein the first roller and second roller are configured to mate with each other and wherein the angle between the first set of angular corrugations and the second set of angular corrugations ranges between 30-150 degrees.