Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1979-02-15
1981-03-03
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156155, 156290, 156311, 156322, 206523, 229 53, B32B 3100
Patent
active
042538920
ABSTRACT:
Method and apparatus are described for making cushioned shipping packet bags. A pocket within the cushioned bag is defined between two resilient, lightweight, flexible cushioning layers of polypropylene microfoam material which advantageously exhibits a relatively "non-slip" frictional gripping action on the item or items contained within the sealed packet bag. The cushioned bag is produced on a continuous motion machine having capability for adjusting the length and width of the cushioned bags produced. Two packages can be simultaneously produced end-to-end when their combined lengths do not exceed the overall width of the machine. To enable the protective outer kraft paper layers of the bag to be sealed together in spite of the intervening polypropylene material, this material is burned away from between the outer layers during the heat sealing of a polyethylene coating on the inner surfaces of the kraft paper enclosure by heat energy conducted through the kraft paper.
REFERENCES:
patent: 2224370 (1940-12-01), Wescott
patent: 2962158 (1960-11-01), Strutheus
patent: 3256527 (1966-06-01), Studen
patent: 3317038 (1967-05-01), Bade et al.
patent: 3344973 (1967-10-01), Studen
patent: 3768724 (1973-10-01), Hill
patent: 4011798 (1977-03-01), Bambara et al.
D'Angelo Joseph J.
Maccherone Lawrence S.
Flexible Design Packaging Machine Company
Simmons David A.
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