Method and apparatus for producing a composite structural...

Details Method and apparatus for producing a composite structural... Method and apparatus for producing a composite structural...

2005-07-05

2005-07-05

Kim, Eugene (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

C493S463000

Reexamination Certificate

active

06913570

ABSTRACT:
A folded core structure is produced by embossing fold lines into a flat planar material web, initiating folds along the fold lines on the upper and lower surfaces of the material web, proceeding with the formation of the folds along the fold lines to deform the material web from its two-dimensional starting configuration to a three-dimensional folded configuration, and post-processing the folded material web to stabilize or fix the folded configuration thereof. A composite structural panel is produced by bonding a cover layer onto at least one surface of the folded core structure. An apparatus preferably includes embossing or creasing rolls to form the fold lines in the material web, air nozzles or folding rolls to initiate the folding process, bristle brush rolls to complete the folding process, and further folding rolls to enhance and fix the folded configuration, optionally in connection with heating, cooling, applying a coating onto, or impregnating a resin or binder into the material web.

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patent: 6170549 (2001-01-01), Marschke
patent: 6685615 (2004-02-01), Weder

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