B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/87, 154/123.
B32B 5/20 (2006.01) B29C 44/12 (2006.01) B29C 44/14 (2006.01) E04C 2/296 (2006.01)
Patent
CA 1291406
A B S T R A C T A method of manufacturing a sandwich panel in which two rigid or semi-rigid skins are mounted in spaced, substantially parallel vertical relation with the panel edge members extending across the gap between the low edges of the skins. At least one nozzle is introduced between the upper edges of skins and a liquid foam forming material is projected laterally against the inner services of the skins, adjacent the upper edges thereof, and the liquid is allowed to flow downwardly to wet substantially the entire inner surface of each of the skins. The introduction of the liquid is continued until sufficient foam forming material has been introduced into the space between the skins to obtain the desired foam interior under the prevailing conditions. The gap between the upper edges of the skins is closed and the foam is allowed to expand and fill the space between the skins and thereafter to cure.
537576
de Beste Willem H.
Gowling Lafleur Henderson Llp
Hunter Douglas Canada Inc.
Hunter Douglas Canada Limited
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