Flattenable top for gable top containers

Claim 2

A blank for a gable top carton of the type that has first and second substantially identical upward converging slanting gable panels at the upper region of which are respective upper score lines for affording sealing of the carton top to form a rib and wherein said gable panels have a slant length A and the carton top has a span B which is less than twice A, the improvement comprising said first gable panel defining an auxiliary score line parallel with and below said upper score line so that said first gable panel can be concavely folded at said auxiliary score line to flatten said gable top without substantially distorting said second panel.

Claim 3

In an article of manufacture including a gable top container of the type having first and second substantially identical upward slanting rectangular gable panels which are sealingly joined together at an upstanding rib and wherein the gable panels have substantially identical slant lengths so that the rib is symmetrical of the container and normally disposed thereabove, the improvement comprising a score line formed in at least a first one of said gable panels parallel to the rib and spaced therefrom by an amount so that said first gable panel can be concavely folded at said score line so that the gable top panels can be moved to a smooth flattened condition, said panels and said rib being disposed so as to afford erection of said gable top preparatory to opening the container.

Claim 4

In an article of manufacture including a gable top container of the type having first and second substantially identical upward slanting rectangular gable panels which are sealingly joined together at an upstanding rib and wherein the gable panels have substantially identical slant lengths so that the rib is symmetrical of the container and normally disposed thereabove, the improvement comprising a score line formed in at least a first one of said gable panels parallel to the rib and spaced therefrom by an amount so that said first gable panel can be concavely folded at said score line so that the gable top panels can be moved to a smooth flattened condition, said panels and said rib being disposed so as to afford erection of said gable top preparatory to opening the container.

Claim 5

An improved blank according to claim 1 wherein said auxiliary score line is spaced below said upper score line by a distance substantially equal to A-B/2.