Bag forming machines

Details Bag forming machines Bag forming machines

1977-03-22

1978-05-30

Coan, James F.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

93DIG1, 156515, B31B 164

Patent

active

RE0296449

ABSTRACT:
The specification discloses apparatus for forming individual heat sealed articles, e.g., tubes or bags, from a strip of two superimposed layers of heat sealable material or of a material coated, or impregnated, with a heat sealable material which apparatus comprises means to feed the strip in a zig-zag configuration and means for welding together the layers of the strip at or adjacent the transverse crests of the strip located on one side of the zig-zag. The welding means comprise a single continuous welding device and the feed means includes means for supporting the strip at the transverse crests located on the mentioned one side of the zig-zag and for presenting those crests to the welding device.

REFERENCES:
patent: 2229121 (1941-01-01), Nye et al.
patent: 3004881 (1961-10-01), Van Der Meulen
patent: 3052282 (1962-09-01), Bruckhauser et al.
patent: 3059690 (1962-10-01), Nyborg

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