B - Operations – Transporting – 31 – D
Patent
B - Operations, Transporting
31
D
93/72, 154/30.01
B31D 3/02 (2006.01) B32B 3/12 (2006.01) E06B 9/26 (2006.01)
Patent
CA 1280957
ABSTRACT OF THE DISCLOSURE A process and apparatus for fabricating expandable honeycomb materials disclosed. The continuous length of material is folded opposite side portions thereof into a generally flat tubular form having upper lower layers. Adhesive is then applied along the length of the continuous material by first heating the material, applying the adhesive in a liquid state to the heated material, and then cooling the material to solidify the adhesive. The folded tubular material with solified adhesive lines thereon is then wound about a rack in such a manner that the tubular material is deposited in a plurality of continuous layers one on another with the lines of adhesive being disposed between adjacent layers. The wound layers are then radially cut and placed in a vertically aligned stack while they are removed from the rack. The vertically stacked layers are then heated to a temperature sufficient to activate the liens of adhesive and bond the layers together. Finally, the stacked tubular material is cooled to form a unitary stack of tubular, expandable honeycomb material. A device for performing the process as described above is also disclosed.
532672
Gowling Lafleur Henderson Llp
Hunter Douglas International N.v.
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