Patent ID: 7699956

Claim:
Method for making a cellular structure comprising a plurality of uniform hollow circular-cylindrical elements having an open end, which method comprises the following steps: a) providing a first plurality of uniform hollow circular-cylindrical elements standing on an open end and parallel to one another, which for a first row of elements; b) providing a second plurality of the uniform hollow circular-cylindrical elements standing on an open end and parallel to one another, which form a second row of elements, the second row containing as many elements as the first row and being parallel to the first row but displaced by a certain distance in its longitudinal direction in relation to the first row, which distance is less than the extension of one of the uniform elements in the longitudinal direction of the two rows; c) applying an adhesive to the elements in at least one of the two rows; d) bringing at least one of the two rows closer to the other so that the two rows are brought together and thereby bonded to one another by the adhesive, wherein the second plurality of elements is provided in that elements intended to form the second plurality of elements are fed from two opposite directions, which opposite directions are both parallel to the first row of elements, the elements being transported until the elements that are fed in one direction meet elements that have been transported in the opposite direction and together with the elements transported from the other direction form a second row of elements, and the bringing of at least one of the two rows closer to the other taking place after the second row has been formed.