Method of manufacturing insulating corrugated structural members

Details Method of manufacturing insulating corrugated structural members Method of manufacturing insulating corrugated structural members

1979-06-11

1981-07-21

Thibodeau, Paul J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156210, 1563082, 264500, 264571, 264220, 264225, 264287, 264337, 428174, 428177, 428192, 428920, B32B 302, B32B 328

Patent

active

042796792

ABSTRACT:
An insulating corrugated member is provided by two sheets having identical corrugations, at least one of the sheets being of a thermoplastic material and having its edges deformed, the deformed edges being adhesively secured to the other sheet. The edges of the thermoplastic sheet are deformed on a mold which is prepared by using, as a template, a sheet having identical corrugations by the application of heat and differential gas pressure to opposite sides of the thermoplastic sheet.

REFERENCES:
patent: 1399455 (1921-12-01), Armstrong
patent: 2840500 (1958-06-01), Okoomian et al.
patent: 3540079 (1970-11-01), Bush
patent: 3566447 (1971-03-01), Ogden
patent: 3738830 (1973-06-01), Kimura et al.

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