Patent ID: 9518659
Filing Date: 2016-12-13
CPC Classification: B01D,B32B,F16J

Claim Text:
1. A flat gasket comprising: at least a first metallic layer; and a second metallic layer; and a third layer arranged between the first and second metallic layer, with the first metallic layer comprising at least a first passage opening and the second metallic layer comprising at least a second passage opening, which are arranged adjacent to each other in a direction perpendicular to the planes of the layers, with the third layer adjacent to the first and second passage openings in a direction perpendicular to the planes of the layers showing no passage opening and spanning the passage openings in the plane of its layer, with the third layer as a sieve layer comprising a mesh material said mesh material comprising threads crossing each other while forming crossing points, wherein the mesh material in the area spanning the first and second passage openings in the plane of its layer and encircling these passage openings in the plane of its layer, the total height of two threads crossing each other at the middle of a crossing point of the two threads is less than 1.4 times the height of a single thread at half the distance between vicinal crossing points.