Abstract: A door for a container having a door frame with top, sides and bottom, the door having a flexible door panel with a top, sides and a bottom, with an arrangement for attaching the door panel top to the door frame top. Pulleys are attached to the door frame at the four corners of the frame. Three cables are carried by the door panel, with one cable anchored to the door frame at the lower right corner and running over the upper right pulley to a upper cable junction ring, a second cable anchored to the door frame at the lower left corner and running over the upper left pulley to the upper cable junction ring, a third cable having both ends joined to a lower cable junction ring and running over the lower right pulley and the lower left pulley, and a buckle having upper and lower ends connected to the upper and lower cable junction rings, respectively, and including a strap for tensioning the cables by drawing the upper and lower cable junction rings toward each other.

Abstract: A cargo container apparatus constructed of panels joined to a rigid framework so as to allow quick assembly and replacement of damaged panels without the use of conventional fasteners. In addition, the panels can undergo unrestricted expansion and contraction thereby allowing polycarbonate panels to be affixed to a rigid aluminum framework for use in environments experiencing a wide range of temperatures. This system is especially well-suited for the construction of air cargo containers.