Patent ID: 8348053

Claim:
A blank of foldable material for forming a combining sleeve, comprising: first, second, third and fourth panels for forming respective front, left side, back, and right side of the combining sleeve, wherein each panel comprises two substantially parallel sides and two substantially parallel ends which are substantially perpendicular to the sides, the first panel connected to the second panel by a first fold line, the second panel connected to the third panel by a second fold line and the third panel connected to the fourth panel by a third fold line, wherein the first, second and third fold lines are along adjacent sides; a platform panel connected to an end of the third panel by a connect tab which is connected to the third panel by a fourth fold line and connected to the platform panel by a fifth fold line; an adhesive tab connected to a side of the fourth panel at a sixth fold line to join the first panel to the fourth panel; at least one locking tab connected to an end of the first, second or fourth panels at a seventh fold line and on the same end of the blank as the platform panel, wherein the locking tab is rotatable about the seventh fold line to engage the platform panel at a periphery thereof; wherein the blank is foldable to form a lower sleeve opening communicating with a lower recess between the first, second, third, fourth and platform panels at a lower end of the combining sleeve and an upper opening communicating with an upper recess between the first, second, third, fourth and platform panels at an upper end of the combining sleeve; wherein respective first, second and third locking tabs are connected to respective ends of the first, second and fourth panels at respective fold lines on the same end of the blank as the platform panel, wherein the locking tabs are rotatable about each respective fold line to extend equally to engage the periphery of the platform panel.