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A shipping container has a lid locked using pressure, rather than friction. The container includes front and rear side panels and a lid. The lid has a positive locking tab for engaging with a slot in the front side panel. The tab has a greater length than the slot. An end of the tab and an edge of t

A shipping container has a lid locked using pressure, rather than friction. The container includes front and rear side panels and a lid. The lid has a positive locking tab for engaging with a slot in the front side panel. The tab has a greater length than the slot. An end of the tab and an edge of the lid form a notch therebetween. In an embodiment, a corrugated paperboard blank is folded to approximate the lid to the front side panel. The lid is folded along an angled score line, rotating the tab with respect to the slot so that an end of the tab engages the slot and the front panel at an end of the slot engages the notch. The lid is folded to rotate the tab in the opposite direction; the tab then engages with the slot, the end of the tab extending beyond the slot.

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1. A container comprising: a bottom panel;a rear side panel and a front side panel each connected to the bottom panel; anda lid connected to the rear side panel along an upper edge thereof, the lid having a central portion, an adjacent corner portion for folding with respect to the central portion a

1. A container comprising: a bottom panel;a rear side panel and a front side panel each connected to the bottom panel; anda lid connected to the rear side panel along an upper edge thereof, the lid having a central portion, an adjacent corner portion for folding with respect to the central portion along a line angled with respect to said edge of the lid and intersecting said edge of the lid at a closed end of a notch, and positive locking tab for engaging with a slot disposed in the front side panel,wherein the positive locking tab includes a main end portion, the main portion and the end portion having a combined first length greater than the length of the slot, and the main portion is connected to the lid along a second length, the second length being approximately equal to the length of the slot wherein the end portion of the positive locking tab and an edge of the lid forming the notch therebetween for engaging with the front side panel at an end of the slot, said adjacent corner portion adapted to be folded with respect to the central portion along a line angled with respect to said edge of the lid and intersecting said lid edge to facilitate insertion of the locking tab into the slot. 2. A container according to claim 1, further comprising a front edge panel connected to the front side panel along the upper edge of the front side panel, and wherein the container has a fold along the upper edge of the front side panel, the slot being formed along the fold, so that engaging the notch causes the end portion of the locking tab to be captured beneath said fold and between the front side panel and the front edge panel. 3. A container according to claim 1, wherein folding the corner portion of the lid along said angled line causes the notch to rotate with respect to the slot and permits the notch to engage the front side panel. 4. A container according to claim 1, wherein the slot has a tapered shape with said end of the slot being wider than an opposite end of the slot. 5. A container according to claim 1, wherein said container has an elongated rectangular oblong shape and the lid has two locking tabs proximate to opposite ends of the lid. 6. A container according to claim 5, wherein each of said locking tabs is connected to a corner portion of the lid for folding along a line angled with respect to the edge of the lid, each said line having a first end intersecting the edge of the lid at a closed end of the notch corresponding to the respective locking tab and a second end intersecting a rear corner of the lid. 7. A container according to claim 6, wherein said locking tabs are disposed symmetrically with respect to a lateral midline of the container, and each of said locking tabs corresponds to a slot having a wide end proximal to the midline and a narrow end distal to the midline. 8. A blank foldable into a container, comprising: a bottom panel;a rear panel connected to the bottom panel along a lower rear score line;a front panel connected to the bottom panel along a lower front score line, the front panel having a slot formed therein; anda lid connected to the rear side panel along an upper rear score line, the lid having a central portion, an adjacent corner portion connected to the central portion along a score line angled with respect to said edge of the lid and intersecting said edge of the lid at a closed end of a notch, and a positive locking tab connected thereto,wherein the positive locking tab includes a main portion and an end portion, the main portion and the end portion having combined gas-a first length greater than the length of the slot, and the main portion is connected to the lid along a second length, the second length being approximately equal to the length of the slot and the end portion of the positive locking tab and an edge of the lid forming the notch therebetween. 9. A blank according to claim 8, wherein the front panel includes a front side panel connected to the bottom panel and a front edge panel connected to the front side panel along an upper front score line, and wherein the slot is formed along the upper front score line. 10. A blank according to claim 8, wherein the slot has a tapered shape with said end of the slot being wider than an opposite end of the slot. 11. A blank according to claim 8, wherein the lid has two locking tabs connected thereto and proximate to respective opposite corners of the lid, and each of the locking tabs is connected to a corner portion of the lid along a score line angled with respect to the edge of the lid, each said angled score line having a first end intersecting the edge of the lid at a closed end of the notch corresponding to the respective locking tab and a second end intersecting a rear corner of the lid. 12. A blank according to claim 11, wherein said locking tabs are disposed symmetrically with respect to a lateral midline of the blank, and each of said locking tabs corresponds to a slot having a wide end proximal to the midline and a narrow end distal to the midline. 13. A blank according to claim 8, wherein the blank is formed of corrugated paperboard. 14. A method for forming a container, comprising the steps of: providing a foldable blank including a bottom panel;a rear panel connected to the bottom panel along a lower rear score line;a front panel connected to the bottom panel along a lower front score line, a slot being formed in the front panel; anda lid connected to the rear side panel along an upper rear score line, the lid having a central portion,a corner portion connected to the central portion along a score line angled with respect to an edge of the lid, anda positive locking tab connected to the corner portion, the positive locking tab including a main portion and an end portion having a combined first length greater than the length of the slot, the main portion being connected to the corner portion of the lid along a second length approximately equal to the length of the slot, the end portion of the positive locking tab and an edge of the lid forming a notch therebetween, the angled score line intersecting said edge of the lid at a closed end of the notch;folding the blank along the lower rear score line, the lower front score line, and the upper rear score line to approximate said edge of the lid to the front panel;folding the blank along the angled score line, thereby rotating the positive locking tab with respect to the slot in a first rotation direction;engaging the end portion of the positive locking tab with the slot and engaging the front panel at an end of the slot with the notch;again folding the blank along the angled score line, thereby rotating the positive locking tab in a second rotation direction opposite the first rotation direction so that the main portion of the positive locking tab engages with the slot and the end portion of the positive locking tab extends beyond the slot.