Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension and sifting
Patent
1986-01-02
1987-04-07
Lowrance, George E.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Aqueous suspension and sifting
229 31, 229DIG9, B65D 572
Patent
active
046553860
ABSTRACT:
Packing container blanks for gable-top packages are cut out of a material web which, up to now, has caused an appreciable amount of waste material, since the edges of the blanks are irregular and cannot be "dovetailed" into one another. A packing container blank is provided with partly straight, parallel lateral edges (11,12), and partly transverse edges (11,12) which are indented according to a regular pattern which is repeated over the width of the blank. As a result of the indentations, the edges of the blanks too can be formed without wastage.
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Elkins Gary E.
Lowrance George E.
Tetra Pak International AB
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