Packaging construction

Claim 1

A corner post construction for use in internal packaging of cartons and the like between the vertical corners of the boxes and the products to be packaged in said cartons, said corner post construction comprising: a base member formed from at least three equal size first ply members of a flat stiff corrugated sheet material stacked and adhesively secured in superimposed relationship to each other, said ply members forming a block of uniform dimensions throughout; a top member formed from at least three second ply members of a flat stiff corrugated sheet material equal to that of said first ply members, said second ply members stacked and adhesively secured in superimposed relationship with respect to each other, each of said second ply members being of an equal size and of a length equal to that of said first ply members but substantially narrower in width; said top member being adhesively secured to a top ply of said base member such that one longitudinal edge of said top member is in a common plane with a longitudinal edge of said base member and said first and second ply members are substantially parallel to each other, thereby forming an L-shaped corner post in cross-section with an opposite longitudinal edge of said top member adjacent to an upper surface of said base member; said corrugations of said first and second ply members extending in a direction parallel to said longitudinal edges of said top member and said base member; a hinge joining the top ply of said base member with the bottom ply of said top member along said common plane; and a protective coating of a relatively soft, non-abrasive material substantially completely covering and sealing at least said opposite edge of said top member, thereby protecting said products from the abrasive nature and dirt associated with said opposite longitudinal edge of said top member.