Process of making folded cardboard container covered by a layer

Details Process of making folded cardboard container covered by a layer Process of making folded cardboard container covered by a layer

1983-03-23

1985-11-26

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264512, 156224, 156245, 156287, B29C 1704, B29D 302, B31F 100

Patent

active

045553815

ABSTRACT:
A process of making a container of the dishtype, including, on the one hand, a bottom 40, walls 31 to 34 and 41 to 44 and edges 30a to 30d of exterior cardboard and, on the other hand, of a thermo-formed layer 2 of synthetic material. The edges 30a to 30d are constituted by the sides of a frame 30 and are in one piece. The frame 30 is integral with the walls 31 to 34, bent downward. The bottom 40 is integral with the walls 41 to 44, bent upward and complimentary to the walls 31 to 34. All walls are placed so as to be on the same level and are maintained by the layer 2.

REFERENCES:
patent: 3104012 (1963-09-01), Beamish
patent: 3489331 (1970-01-01), Andersson
patent: 3512332 (1970-05-01), Klein
patent: 3765976 (1973-10-01), Nasica
patent: 4105153 (1978-08-01), Locke

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