Abstract: In the present invention, a plurality of panel members are supportingly retained in a first holding plate, with each of the panel members being arcuately pivotable relative to the holding plate. In addition, a second, movable plate is cooperatively associated with the panel members for being longitudinally movable along the length of the panel members while securely retaining and being cooperatively associated with each panel member. In this way, the second, movable plate is quickly advanced from a first position in direct association or engagement with the first holding plate into a second position wherein the second, movable plate is extended away from the first holding plate substantially the full length of each panel member. When in this second position, each panel member is fixed in a locked and fully erect position.

Abstract: By providing a unique, pre-formed holding member which is quickly and easily assembled into the three-dimensional diorama display, a unique, visually exciting and interest generating three-dimensional diorama display system is attained. In the preferred embodiment of the present invention, a substantially flat transparent sheet of material is constructed having a desired size and shape for receiving and holding a particular photograph construction or configuration. In addition, the transparent sheet of material incorporates cooperating pre-formed score lines formed along the opposed edges of the transparent sheet, effectively establishing flanges at the opposed side edges thereof. Each of the flanges are arcuately pivoted along the associated score lines, thereby enabling the flanges to extend inwardly, towards each other, establishing two cooperating photograph edge holding flanges.

Abstract: By providing a housing member within which all of the required elements are pre-formed and constructed as a display system which enables any desired graphics to be inserted therein to form an integral part of the assembly, a unique, printed, visually exciting and interest generating foldable, three-dimensional display system is attained. In accordance with the present invention, the interest generating, foldable display system of the present invention is quickly and easily automatically erected from its flat, generally two-dimensional configuration into a three-dimensional display. Furthermore, the housing preferably comprises an enlarged internal cavity for receiving any desired display element. In this way, the display assembly is easily, and automatically converted from a two-dimensional, substantially flat configuration into a three-dimensional fully erected, interest generating, visually exciting display.

Abstract: The disclosure relates to an in-wall speaker system, specifically a system that is not readily visible and mounted in a room. The in-wall speaker system is comprised of a base frame that is adapted to be mounted between support members of a wall. The in-wall speaker system further has a speaker assembly mounted to the base frame and an active member that has an outer surface which is substantially coplanar with the surrounding wall section and in one form extends slightly outward therefrom. The base frame, speaker assembly, and the active member cooperate to form an acoustic chamber that is positioned behind the inner surface of the active member. Acoustic energy is transferred from the speaker assembly to the active member where the sound is produced therefrom to the room.

Abstract: Interactive electronic polling/testing/didactic apparatus employs a microprocessor having fixed (ROM) and variable (RAM) memory connected thereto. A sequence of output visual messages are provided under microprocessor control.A user actuated input device, e.g., a keyboard, enters a user reaction to the visual material presented. The user responses are accumulated, and reported as via a digital printer. The response significance varies with application, and may represent for example, game results, preferences, opinion in a sampling or polling context, or educational achievement.