Patent ID: 6481325
Filing Date: 2002-11-19
Classification: B01J,B21F,D04C

Abstract:
A method for manufacturing a packing made of a three-dimensional net-like structure which constitutes an internal structure of a device which performs material transfer, heat exchange or mixing between gases, liquids or gas and liquid, said internal structure being divided in a plurality of chambers or channels connected to one another and said three-dimensional net-like structure being made of a plurality of unit structures which are arranged continuously in vertical and horizontal directions of the three-dimensional net-like structure, each of the unit structures being a combination of two triangular pyramids having common apex (22a) and bottom surfaces disposed in opposite directions said method comprising a step of forming the apex (22a) and three sides (22b) of the two triangular pyramids by converging and diversion of three line elements (23) about a knot (24) which is formed by twisting the three line elements (23).