Abstract: A variable fairing for covering a hydrogen duct system installation on the outside of an aircraft part, wherein the fairing comprises at least one fairing body to be mounted on the aircraft part, an air inlet and an air outlet and at least one movable closure mechanism configured to open and close a top portion of the fairing.

Abstract: A hydrogen accumulation control system for monitoring and controlling leaked hydrogen within an interior space, in particular of an aircraft, includes a hydrogen detection system installed within the interior space to detect the presence of gaseous hydrogen in the interior space and to provide occurrence data on the detected hydrogen within the interior space, a system control configured to assess the occurrence data and to determine and initiate a remedial procedure for reduction of the detected hydrogen within the interior space, and a venting system configured to vent the interior space from the detected hydrogen according to the remedial procedure.

Abstract: The present disclosure relates to a method of billing an online purchase of a user by himself or a third party. The disclosure particularly provides a method for handling a superordinated virtual shopping cart in which articles of different online providers can be accumulated and billed commonly.

Abstract: The present invention relates to a method and a system for the automated execution and billing of an internet-based online purchase of a user. According to the invention this provides for sensitive data such as e.g. payment information, to be stored in encrypted form in a local memory of a user terminal, with permanent storage of this data in an external server system for processing the purchase transaction being avoided.

Abstract: The present disclosure relates to a method of billing an online purchase of a user by himself or a third party. The disclosure particularly provides a method for handling a superordinated virtual shopping cart in which articles of different online providers can be accumulated and billed commonly.

Abstract: An apparatus warns of differential pressure during the opening of a pressure-loaded door that closes an opening in an aircraft fuselage. An air guide passage extends from the side with higher pressure to the side with lower pressure. The air guide passage is closeable by a valve that is controllable with a control lever operatively Connected to a door opening mechanism. When there is a differential pressure between the two sides, upon opening of the valve the apparatus produces an acoustic signal as a differential pressure indication that is independent of a supply system and serves as a warning signal for the operator of the aircraft door.

Abstract: A lighting element for use for a passenger seat may be integrated in a backrest of the passenger seat, particularly to illuminate an area behind the passenger seat.

Abstract: A display element for use for a passenger seat may be integratable into the backrest (or armrest) of the passenger seat in order to be able to be observed from the rear of the passenger seat.

Abstract: In an apparatus for warning of differential pressure during the opening of a pressure-loaded closure device (1) of an opening in the aircraft fuselage by means of an opening mechanism (4; 100; 105), the invention exists in that an air guide passage is provided from the side with higher pressure (passenger cabin P) to the side with lower pressure (outside environment A). The air guide passage is closeable by a valve (5; 209), whereby it is controllable with a control lever (4; 208) placed in operative connection with the door opening mechanism, and produces an acoustic signal upon opening of the valve (5; 209) and an existing differential pressure. With such a warning apparatus, a differential pressure indication independent of a supply system is provided and serves as a warning signal for the operator of an aircraft door. Thereby, the differential pressure indication is directly coupled to the action of the operator.