Patent ID: 6279767
Filing Date: 2001-08-28
Classification: B65D

Abstract:
In a container for shipping cargo by at least one of trains, ships, and trucks being configured to adhere to a plurality of predetermined standard external dimensions for conventional freight containers, having a rear end frame including a door sill disposed at a rear side of a base structure, corner posts having tops extending upward from both ends of said door sill, a door header spanning the width of the container disposed on the tops of said corner posts, corner fittings disposed at points where said corner posts are connected to said door header and said door sill, giving said container a predetermined structural integrity and a door mounted on said corner posts, the improvement comprising:an enlarged door opening, greater than a predetermined door opening, said enlarged door opening formed by reducing a thickness of said door header and sloping a floor of said base structure downward towards the door, thereby increasing a height of the door opening from the top surface of said door sill to the bottom surface of said door header while maintaining the predetermined standard external dimensions of the container, and by adding corner reinforcement attached to said header and corner posts to maintain said predetermined structural integrity.