Abstract: Proposed is a portion capsule for producing a beverage, having a substantially frustoconical or cylindrical base element which has a cavity, and having a membrane which closes off the cavity, with a filter element being arranged within the cavity, which filter element divides the cavity into a first region for holding beverage raw material and a second region for holding a beverage extract, with the filter element being fastened to the base element by at least one fastening means which is arranged substantially in the region of a side, which is situated opposite the membrane, of the base element.

Abstract: A portable data exchange device including a data input, a data output, and a memory is incorporated into a mechanical or electronic key that is required for operating a motor vehicle. The data exchange device can exchange data bi-directionally or uni-directionally with a data processing device in the vehicle and with an external input/output terminal. The data may include vehicle-specific and/or driver-specific data relating to various systems of the vehicle. The data are transmitted to and from the device in the key in a wireless or direct-contacting manner. This device incorporated in the key avoids the need for carrying a separate data unit for exchanging data between the on-board data processing device of the vehicle and the external input/output terminal.

Abstract: A portable data exchange device including a data input, a data output, and a memory is incorporated into a mechanical or electronic key that is required for operating a motor vehicle. The data exchange device can exchange data bi-directionally or uni-directionally with a data processing device in the vehicle and with an external input/output terminal. The data may include vehicle-specific and/or driver-specific data relating to various systems of the vehicle. The data are transmitted to and from the device in the key in a wireless or direct-contacting manner. This device incorporated in the key avoids the need for carrying a separate data unit for exchanging data between the on-board data processing device of the vehicle and the external input/output terminal.

Abstract: A hose coupling member comprises a housing with a through opening and with grooves oriented obliquely along the inner surface of the housing, a piston arranged in the housing to seal the through opening, a shaft attached to the piston, and an actuator arranged inside housing. Upon relative rotation between housing and the actuator shaft will run in grooves and establish a linear relative movement between the housing and the piston, the actuator being arranged and shaped so that the actuator acts directly upon the shaft. Rolls are preferably mounted on the shaft.