Stackable container of paperboard
AssigneeCarter Holt Harvey Limited
InventorsGregory Thomas Blomfield, Robert William Coe, Trevor Grant Burgess
Life of this patent
Estimating the term…
Abstract
A container formed from a blank to define indexing longer walls having an inward incline but a double thickness provided by a foldline at the tops thereof so that the indexing projections are receivable within corresponding openings in the base of a corresponding container. Each part of the indexing walls has an extension such that at each end thereof one extension attaches to the outside of an end wall while the other attaches to the inside of an end wall with preferably that attaching to the inside of an end wall through a pair of parallel vertical folds providing a support at least in part for the weight of a stacked container.
Claims17
A container formed from a blank, said container comprising:
- a rectangular base having opposed longer sides and opposed shorter sides,
- a flap sequence of two indexing wall flaps extending from each of the longer sides of said rectangular base, a first indexing wall flap of each flap sequence being connected to the base by a fold line, and the second indexing wall flap of each flap sequence being connected to the first flap, and each indexing wall flap of each flap sequence having an extension flap beyond a fold-line extending substantially normal to said fold-line of said first indexing wall flap with the base, and
- a non-indexing wall flap extending from each of the shorter sides of said base,
- said base including a plurality of openings,
- and said container, when erected, each indexing wall flap sequence having been folded to define an upwardly directed, inwardly inclined indexing wall,
- and, in the erected form, above a transition between each sequence of the first indexing wall flaps and second indexing wall flaps there are defined a plurality of projections, each projection being indexable by one of said plurality of openings of the base of another erected container in a stacking configuration,
- and, when erected, in the corners of the erected containers, the extensions of each of the second indexing wall flaps fold inwardly to define a gusset configuration,
- and, when additional erected containers are stacked, each wall of the longer sides of the base is indexed into a superimposed base and each superimposed base, under load, is in part supported at said gusset configuration.
A container of 1, wherein the second flap of each flap sequence being connected to the first flap of each flap sequence by a fold line.
A container formed from a blank, said container comprising:
- a rectangular base having opposed longer sides and opposed shorter sides,
- a flap sequence of two indexing wall flaps extending from each of the longer sides of said rectangular base, a first indexing wall flap of each flap sequence being connected to the base by a fold line, and the second indexing wall flap of each flap sequence being connected to the first flap, and each indexing wall flap of each flap sequence having an extension flap beyond a fold-line extending substantially normal to said fold-line of said first indexing wall flap with the base, and
- a non-indexing wall flap extending from each of the shorter sides of said base,
- said base including a plurality of openings,
- and, when erected, each indexing wall flap extension being at least partially adhesively attached to an adjacent non indexing wall flap such that each non indexing two wall flap is sandwiched between two wall flap extensions,
- and said container, when erected, each indexing wall flap sequence having been folded to define an upwardly directed, inwardly inclined indexing wall,
- and, in the erected form, above a transition between each sequence of the first indexing wall flaps and second indexing wall flaps there are defined a plurality of projections, each projection being indexable by one of said plurality of openings of the base of another erected container in a stacking configuration,
- and, when erected, in the corners of the erected containers, the extensions of each of the second indexing wall flaps fold inwardly to define a gusset configuration,
- and, when additional erected containers are stacked, each wall of the longer sides of the base is indexed into a superimposed base and each superimposed base, under load, is in part supported at said gusset configuration.
Dependencies are inferred from the claim text.