METAL CORRUGATED PLATE WITH SECTION CONTAINING NOTCH Russian patent published in 2025 - IPC F17C3/00 F17C13/00 

FIELD: performing operations.

SUBSTANCE: invention relates to metal corrugated plate with notch section. Intermediate section of transverse corrugation comprises central protrusion located transversely at the centre from above and extending in longitudinal direction. Metal corrugated plate has maximum height on central projection, and intermediate section also includes notch sections located on both sides of longitudinal corrugation. Each section of the notch forms a groove extending in the longitudinal direction. Each groove has a lower wall and side walls on both transverse sides of the lower wall of the groove, which forms the lowest part of the upper surface of the transverse corrugation. Panel of metal corrugated plate is divided into four integral rectangular sections with transverse and longitudinal corrugation. Shape of the intersecting part of the transverse and longitudinal corrugation is mainly formed on the transverse corrugation, that is, the characteristic structure of the intersecting part, evidently, forms part of the transverse corrugation and has a clear boundary with the longitudinal corrugation.

EFFECT: ensuring tightness and stability under various operating conditions of the corrugated plate.

11 cl, 5 dwg