Apparatus for making reinforced, double faced corrugated board

Details Apparatus for making reinforced, double faced corrugated board Apparatus for making reinforced, double faced corrugated board

1979-06-27

1981-06-23

Thibodeau, Paul J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156470, 156499, 156538, 156552, 156578, B31F 120, B31F 100

Patent

active

042749050

ABSTRACT:
The present invention relates to a reinforced corrugated board which is specifically reinforced in only those locations where such reinforcing is required in the product produced from this board. The board has a smooth top face or liner and a first corrugated layer adhesively affixed therebeneath. To the bottom of the first corrugated layer, a second corrugated layer is affixed. This second layer is only as large as the area requiring special reinforcing in the final product and need not be as large as the first corrugated layer. A bottom liner or facing is affixed to the second corrugated layer and any of the first corrugated layer which extends around the second layer.
An apparatus and method for producing this board sheet are also presented.

REFERENCES:
patent: 1146771 (1915-07-01), Raffel
patent: 2885138 (1959-05-01), Brackett et al.
patent: 3293107 (1966-12-01), Wells et al.
patent: 3700518 (1972-10-01), Ohmori
patent: 3887418 (1975-06-01), Jurisich
patent: 4046935 (1977-09-01), Wilkinson et al.

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