Package making – Methods – Closing package or filled receptacle
Patent
1981-07-15
1984-03-13
Culver, Horace M.
Package making
Methods
Closing package or filled receptacle
53374, B65B 720
Patent
active
044359438
ABSTRACT:
An apparatus and method for prebreaking relatively short upstanding flanges formed on the upper edges of a carton including a conveyor system for transporting the cartons and a pair of prebreaking idler rollers engaging the flanges. The prebreaking rollers include a grooved trap for engaging the upper edge of the flanges and side rails are provided to assure against buckling the flanges or the side walls of the carton. A pair of driven rollers aligned with the prebreaking rollers and timed with the passage of the end flanges complete folding of the flanges. The trailing edge of a notch formed in each of the driven rollers folds the trailing end flange.
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Culver Horace M.
Kliklok Corporation
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