Abstract: A convertible system which is changeable from a portable storage mode to a display mode is formed by a first container, a second container and conversion material. The second container and the conversion material are held within the first container when the system is in the storage mode and the conversion material is removable from the first container and used to convert the system from the storage mode to the display mode.

Abstract: A new attachment plate is provided for securing components of panel assemblies to a mounting post, the attachment plate incorporating a securing hook together with a locking tab. The attachment plate includes a projecting hook which mates with a slot in a mounting post structural member. The hook is of a lesser length than the slot in the post, and a further projection as a locking tab is provided on the attachment plate which also enters the slot and restrains reversed relative movement between the plate hook and the post slot, so as to limit or prevent undesired disassembly of a panel from the post. The application of an upward impact to the plate causes a cam surface on the locking tab to contact the upper end of the mounting post slot. This deflects the locking tab out from the slot, to enable removal of the hook from the slot, for panel disassembly from the post. Also provided is a hooked supporting plate incorporating pairs of flexible presser tabs, to compensate for manufacturing tolerances.

Abstract: A panel assembly including at least two panels and one or more connectors is disclosed in which the individual panels are provided with peripheral slots or channels which have contiguous walls which grasp connectors and serve to join two adjacent panels. The connectors are provided with slot penetrating ends and are dimensioned to be gripped within the slots.

Abstract: A display panel, connectors and display panel system are disclosed in which the individual panels are provided with peripheral slots or channels which have resilient or frictional walls which grasp connectors and serve to join two adjacent panels. The connectors are provided with slot penetrating ends and are dimensioned to be gripped within the slots.

Abstract: A novel hinge of flexible material is provided which comprises a pair of end sections and an intermediate connecting section. The end sections are securable through various means including hook and loop filament material to one face of a structural element and to an oppositely-facing surface of a second structural element to permit movement of the two elements through approximately 360.degree. relative to each other.