Expandable collapsible product and method and apparatus for...

Details Expandable collapsible product and method and apparatus for... Expandable collapsible product and method and apparatus for...

B - Operations, Transporting

29

C

271/16, 160/3

B29C 65/52 (2006.01) B31D 3/02 (2006.01) B32B 3/12 (2006.01) B65H 23/26 (2006.01) E06B 9/262 (2006.01) E06B 9/266 (2006.01) B29C 65/16 (2006.01) B29D 31/00 (2006.01) H01M 4/52 (2006.01)

Patent

CA 1316452

A B S T R A C T An expandable collapsible product is made by providing a pleated sheet (8,10) having legs (20) which are made by securing two parts of a fold (17) together. Two sheets are combined by securing the end of a leg (20) to a crease (16) or a leg (20) of an opposite sheet. The sheet material can be folded to provide alternating taller folds (17) and shorter folds (16), and the taller folds are modified to provide the legs (20) by glueing parts of the taller folds (17) together. Glueing can be accomplished by moving glue heads across the sheet at high velocity through the use of linear motors. The glue lines may be heated after being laid down by the use of electro-magnetic radiation, preferably from a high-powered laser. The finished product may be used as insulated window coverings, or the like.

574957

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