Patent ID: 8602240
Filing Date: 2013-12-10
Classification: B65D

Abstract:
1. An apparatus comprising: a first wall; a second wall; a base, wherein the first and the second walls are fixed to the base so that the first and the second walls are fixed substantially perpendicular to the base, such that the first and the second walls cannot rotate with respect to the base without breaking the apparatus, and the first and the second walls are fixed parallel to each other and separated by a first distance; a first device connected to the base so that the first device can rotate with respect to the base; a second device connected to the base so that the second device can rotate with respect to the base; wherein the first device includes a third wall, a fourth wall, and a fifth wall, wherein the third wall is fixed substantially perpendicular to the fourth and the fifth walls, and the fourth and the fifth walls are fixed to the third wall so that the fourth and the fifth walls are substantially parallel to each other and spaced apart by the third wall; wherein the second device includes a sixth wall, a seventh wall, and an eighth wall, wherein the sixth wall is fixed substantially perpendicular to the seventh and the eighth walls, and the seventh and the eighth walls are fixed to the sixth wall, so that the seventh and eight walls are substantially parallel to each other and spaced apart by the sixth wall; wherein the first device is connected to the base so that the first device can be rotated into a first state in which the third wall is substantially parallel to the base; wherein the second device is connected to the base so that the second device can be rotated into a second state in which the sixth wall is substantially parallel to the base; wherein the first device is connected to the base so that the first device can be rotated into a third state in which the third wall is substantially perpendicular to the base; wherein the second device is connected to the base so that the second device can be rotated into a fourth state in which the sixth wall is substantially perpendicular to the base; wherein the third wall of the first device has a width, and each of the fourth and the fifth walls have a width which is substantially perpendicular to the width of the third wall, and wherein the fourth and the fifth walls protrude out from the third wall in the direction of the width of the fourth and the fifth walls, respectively; wherein the sixth wall of the second device has a width, and each of the seventh and the eighth walls have a width which is substantially perpendicular to the width of the sixth wall, and wherein the seventh and the eighth walls protrude out from the sixth wall in the direction of the width of the seventh and the eighth walls, respectively; wherein in the third state in which the third wall is substantially perpendicular to the base, the fourth wall of the first device directly contacts a top edge of the first wall to thereby prevent rotation of the fourth wall inwards towards the base, wherein the top edge of the first wall is substantially parallel to the base, and the fifth wall of the first device simultaneously directly contacts a top edge of the second wall to thereby prevent rotation of the fifth wall inwards towards the base, wherein the top edge of the second wall is substantially parallel to the base; wherein the prevention of the rotation of the fourth wall inwards towards the base together with the prevention of the rotation of the fifth wall inwards towards the base prevents rotation of the third wall inwards towards the base; wherein in the fourth state in which the sixth wall is substantially perpendicular to the base, the seventh wall of the second device directly contacts the top edge of the first wall to thereby prevent rotation of the seventh wall towards the base, and the eighth wall of the second device simultaneously directly contacts the top edge of the second wall to thereby prevent rotation of the eighth wall towards the base; and wherein the prevention of the rotation of the seventh wall inwards towards the base together with the prevention of the rotation of the eighth wall inwards towards the base prevents rotation of the sixth wall inwards towards the base.