Abstract: A housing has an expansion tent connectable thereto. A bag-shaped cover is present, and has an opening permanently connected to the housing. The cover forms the interior surface of the erected expansion tent, and is suitable for hermetically sealing off the interior of the housing and the expansion tent with respect to the environment. Sealing can be provided during all operating conditions, while erecting the tent, and while dismantling the tent.

Abstract: A housing has an expansion tent connectable thereto. A bag-shaped cover is present, and has an opening permanently connected to the housing. The cover forms the interior surface of the erected expansion tent, and is suitable for hermetically sealing off the interior of the housing and the expansion tent with respect to the environment. Sealing can be provided during all operating conditions, while erecting the tent, and while dismantling the tent.

Abstract: The invention relates to an inflatable floor or wall structure for mobile buildings, which is formed by flexible boundary layers that are impermeable to air. A plurality of air chambers are formed between the boundary layers. According to the invention, one side of the pneumatic floor structure or wall structure is provided with a plurality of stiff profiled surface elements. The surface elements are mutually spaced such that the floor or wall structure can be rolled up after being deflated.

Abstract: A radio receiver for use in a vehicle, the radio receiver including a hard-disk drive having a hard disk, on which data can be stored in a non-volatile manner on storage locations of the hard disk, and a write-read memory so that data stored on the hard disk can be transferred into the write-read memory and can be displayed on a display device.

Abstract: A pneumatic wall structure and a method of making and erecting same. The pneumatic wall structure includes an inner flexible tent sheet, a central flexible tent sheet and an outer flexible tent sheet. The inner, the central and the outer flexible tent sheets are arranged to form a two-layer wall structure comprising (i) an inner layer formed by the inner tent sheet and the central tent sheet and, (ii) an outer layer formed by the central tent sheet and the outer tent sheet. The inner layer is inflatable and provides a main support structure for the wall structure, and the outer layer forms a convection space into which an ambient air is capable of flowing. The inflatable support tubes are arranged between the central tent sheet and the outer tent sheet to provide redundancy to the main support structure and to provide a spacer between the central tent sheet and the outer tent sheet.

Abstract: The invention relates to a pneumatic wall structure and a method of making and erecting same. The pneumatic wall structure includes an inner flexible tent sheet, a central flexible tent sheet and an outer flexible tent sheet. The inner, the central and the outer flexible tent sheets are arranged to form a two-layer wall structure comprising (i) an inner layer formed by the inner tent sheet and the central tent sheet and, (ii) an outer layer formed by the central tent sheet and the outer tent sheet. The inner layer is inflatable and provides a main support structure for the wall structure, and the outer layer forms a convection space into which an ambient air is capable of flowing. The inflatable support tubes are arranged between the central tent sheet and the outer tent sheet to provide redundancy to the main support structure and to provide a spacer between the central tent sheet and the outer tent sheet.