B - Operations – Transporting – 31 – D
Patent
B - Operations, Transporting
31
D
154/1, 154/90.3
B31D 3/00 (2006.01) B29C 44/32 (2006.01) B32B 5/20 (2006.01)
Patent
CA 1071081
ABSTRACT Insulation board comprising a urethane foam core sandwiched between a thin flexible membrane and a thicker inflexible panel is made by dispensing foam forming materials onto a moving continuous sheet of the thin flexible membrane and depositing individual panel segments onto the foam as it expands. The manufacturing apparatus includes a conveyor press for transporting the flexible membrane past a foam dispensing device and means for consecutively depositing the individual panel segments onto the expanding foam. The panel depositing means comprises a suction apparatus for suspending the panel over the foam and a friction drive mechanism for simultaneously impelling a leading end of the panel against a trailing end of an immediately preceding panel to prevent the formation of gaps between consecutive panel segments. The resultant laminate is then passed through the conveyor press that acts as a forming and curing zone for the laminate which is thereafter cut to size at a cutting station.
265712
Na
United States Mineral Products Company
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