Abstract: A segment and a method for producing such a segment, in particular for an aircraft, having a skin field and a skin field stiffening structure. The skin field and stiffening structure are made from fiber-reinforced plastic materials. The stiffening structure is bonded to an inner surface of the skin field and comprises a multiplicity of first stiffeners and mounts which are formed integrally with the first stiffeners and extend in a transverse direction of the first stiffeners for the connection of second stiffeners to form an integral lattice structure. Reinforcement elements are provided for mechanically fixing the mounts to the skin field. Each reinforcement element has a connection section and a blocking section having an extension in a direction inclined to the connection section. The connection section penetrates the skin field and the mounts, and the blocking section is in contact with an outer surface of the skin field.

Abstract: An arrangement for attaching a system to a structure having a base element to retain the system, a positioning element to position the base element at a location on the structure and a fixation device to fix the base element at the location on the structure. The base element has a section for holding the system and a section for being clamped to the structure. The clamping section has an element for alignment on the positioning element. The positioning element has a surface for being bonded to the structure and a positioning section for acting together with the alignment element. The fixation device has a counter element with a clamping area for being positioned on an opposite side of the structure from the clamping section and a fastener for clamping the base element and the counter element to the structure. An installation method for such an attachment arrangement is provided.

Abstract: The invention relates to a movement-damping unit (30) comprising a receiving tube (32) having a longitudinal axis (A), a relative movement unit (34) which is received in the receiving tube (32) and which is displaceable back and forth relative to the receiving tube (32) substantially in the direction of the longitudinal axis (A), and a friction device (41) acting between the receiving tube (32) and the relative movement unit (34). According to the invention, the friction device (41) comprises at least one switching element (44, 48) assigned to the relative movement unit (34) and having an engagement portion (48a) formed so as to widen radially in the direction of the longitudinal axis (A), wherein at least one resiliently compressible friction element (46, 50), which comprises a recess (50a) intended for engagement with the engagement portion (48a) and is arranged on the longitudinal face of smaller diameter of the switching element (44, 48), is assigned to each switching element (44, 48).

Abstract: A nebulizer comprises a replaceable container with fluid to be nebulized. The container comprises an inseparable indicator device. The container and the indicator device are axially moved during nebulization and tensioning of the nebulizer. The indicator device controls locking of the nebulizer against further use if a predetermined number of uses has been reached or exceeded.

Abstract: A nebulizer is proposed which receives a container with a fluid and an indicator device. The indicator device stops further use of the container in a locked state when a predetermined number of uses has been reached or exceeded. In the locked state, a locking device locks the nebulizer against rotation in a partially tensioned state and, thus, against further use. After replacement of the container including the indicator device, the nebulizer can be used again.

Abstract: A curing tool for a shell component, includes a first tool component, which is a polyhedron and has a wedge-shaped bevel forming a first sheared edge on a first side edge, and a second tool component, which is a polyhedron, has a wedge-shaped bevel forming a second sheared edge on a first side edge and has a first corner bevel on a second side edge diagonally opposite the first side edge. The wedge angles of the first and the second sheared edge are equal.

Abstract: A fuselage cell structure for an aircraft includes at least two skin panels including at least one double shell skin panel and at least one monolithic skin panel. At least one longitudinal brace or a transverse brace is disposed so as to form at least one of longitudinal seam or a transverse seam between the double shell skin panel and the monolithic skin panel. The fuselage cell structure includes at least one of a longitudinal bracket and a load transfer point. The longitudinal bracket is disposed in a region of the longitudinal seam and includes a first and a second longitudinal flanges disposed offset with respect to one another and connected by a web. The load transfer point is disposed in a region of the transverse seam so as to connect the longitudinal brace disposed on the monolithic skin panel to the double shell skin panel.

Abstract: An apparatus for cleaning a floor includes a housing, chassis, wheels, motor, steering mechanism, cleaning assembly, optionally a squeegee assembly, and at least one of a side sweeping system, front sweeping system, and pick-up system. The side sweeping system includes a turntable with central axis, a drive wheel disposed in coaxial relationship with the turntable, a sweeper motive device in communication with the drive wheel, a plurality of brushes distributed radially around the drive wheel and adapted to be driven by rotation of the drive wheel, and a pivoting connector configured to enable the side sweeping system to pivot laterally in response to contact with a wall while at least one of the brushes maintains contact with the floor adjacent the wall while the apparatus is in operation, and the brushes move debris disposed on the floor adjacent the wall toward the front of the apparatus.

Abstract: The present invention provides an office chair (2) comprising a base (8), a seat (4), a chair column (6) that extends in the vertical direction between the base (8) and the seat (4), and a backrest (12), further comprising an electric drive unit that comprises an electric motor and a change gear, the change gear being designed to input the rotational force of the electric motor into a first adjustment device for adjusting a seat height of the seat (4) and converting said force in a second adjustment device for adjusting a tilt of the seat (4) or the backrest (12).

Abstract: The present invention relates to a piece of furniture comprising at least one adjustable use portion, in particular an office chair having an adjustable seat and/or an adjustable backrest. The present invention further relates to an adjusting assembly that can be used, for example, for a piece of furniture of said type.

Abstract: Descriptions of a plurality of information technology resources are maintained in a computer-readable storage medium. A plurality of evaluation strategies a maintained, wherein the evaluation strategies associate a plurality of rules with forms of changes to the plurality of information technology resources. Responsive to detecting a command to change a first property of the set of properties of a first information technology resource of the plurality of information technology resources, the method determines that a first of the evaluation strategies associates at least one of the plurality of rules with a form of the change to the first property of the first information technology resource. Also, responsive to detecting the command, at least one of the plurality of rules is evaluated and the operation of the at least one rule is performed.

Abstract: A drilling method for structural parts, in particular for carbon fiber composite structural parts, comprising the following method steps: providing a structural part and a collecting element; attaching the collecting element to a first side of the structural part opposite a drill point provided on a second side of the structural part, wherein a collecting portion of the collecting element is sealed off in a dust-tight manner from surroundings; drilling through the structural part from the second side of the structural part, at the drill point, using a drill, wherein the drill emerges from the structural part on the first side and enters the collecting portion of the collecting element, wherein drilling dust accumulating on the first side is collected by the collecting portion. A collecting element for a drilling method of this kind is disclosed.

Abstract: An at least partially acoustically sealing element for retaining an in-the-ear device within an ear canal is characterized in that the element comprises at least one textile layer and that it is manufactured by means of thermoforming.

Abstract: Described and illustrated is a pressure bulkhead for an aircraft fuselage, comprising a sandwich structure defining a central axis and extending between a circumferential border area which is configured for being mounted to a fuselage shell, wherein the sandwich structure comprises an inner face sheet extending perpendicularly with respect to the central axis, an outer face sheet opposite the inner face sheet, extending perpendicularly with respect to the central axis, and a core assembly sandwiched between the inner face sheet and the outer face sheet, wherein the inner face sheet, when viewed in a radial cross section along the central axis, has an even shape.

Abstract: A pressure bulkhead for an aircraft fuselage including a sandwich structure defining a central axis and extending between a circumferential border area, the sandwich structure including an inner face sheet and an outer face sheet extending transverse to the central axis, and a core assembly sandwiched between the inner face sheet and the outer face sheet. The pressure bulkhead can receive pressure loads and can be used as a structural bearing element for receiving loads introduced by other structural parts. The inner face sheet and/or the outer face sheet has a corrugated shape. The distance between the outer face sheet and the inner face sheet increases and subsequently decreases from the border area to a central area about the central axis, forming a thickened area where the distance between the outer face sheet and the inner face sheet has a peak.

Abstract: The present invention relates to a screw arrangement (10), comprising: a drive unit (16) for introducing a torque into the screw arrangement, a drive element (24) driven in rotation about a main axis (A) of the screw arrangement by the drive unit (16) and having an external thread (30), and a driven element (12) having an internal thread (32), which is in threaded engagement with the drive element (24). The invention further relates to a seat arrangement.

Abstract: The invention relates to a system comprising a seat (10) and a mobile terminal that are or can be connected to one another in order to transmit data, wherein the seat (10) comprises at least one electromechanical actuator (22, 24, 26, 28) and/or at least one sensor element (32, 34, 36, 38), the mobile terminal is designed to receive inputs from a user and control the at least one actuator (22, 24, 26, 28) on the basis of these inputs and/or to receive and process data collected by the at least one sensor element (32, 34, 36, 38), and the seat (10) and the mobile terminal are each provided with at least one communication means (44), which are designed to wirelessly transmit data between the seat (10) and the mobile terminal. The invention also relates to a corresponding method.

Abstract: This pertains to a method for connecting fiber-reinforced structural components. In a first step of the method, a first fiber-reinforced structural component and a second fiber-reinforced structural component are supplied. In another step, the first fiber-reinforced structural component and the second fiber-reinforced structural component are heated by means of a heating device. A penetration through the first fiber-reinforced structural component and the second fiber-reinforced structural component is produced in another step by means of a fastening device. In another step, the first fiber-reinforced structural component is connected to the second fiber-reinforced structural component by means of the fastening device. This furthermore pertains to a structural aircraft element.

Abstract: The present invention relates to a chromatographic device for isolating and purifying nucleic acids, preferably genomic DNA, by gel filtration chromatography, a method for isolating and purifying nucleic acids, preferably genomic DNA, using this device and a kit comprising this device.

Abstract: A pressure bulkhead comprises a plurality of material plies arranged one above the other, wherein each material ply contains reinforcing fibers embedded in a matrix material. The reinforcing fibers, in at least one first material ply are oriented in such a manner that their longitudinal axes lie in an angle range of ±2° about a radial direction of the pressure bulkhead.