Abstract: A lifting system serves for use in a manufacturing device for generatively manufacturing a three-dimensional object by layerwise application and selective solidification of a building material. The manufacturing device includes building base on which the object is to be built upon a building surface. The lifting system includes a holding device suitable for holding and height-adjusting the building base. In a position corresponding to an operating state within the manufacturing device, the holding device is arranged in such a way that the building base is attached to the underside of the holding device so that the building surface faces towards the holding device.

Abstract: An interchangeable chamber is provided for a 3D printing device, wherein the interchangeable chamber includes a building space for receiving a building platform on which a three-dimensional object can be produced, which building space is designed to be temporarily open in the direction of a top of the interchangeable chamber, as well as optionally a storage container for storing building material and wherein the interchangeable chamber comprises a side wall and a cover, wherein the cover is adapted to close the interchangeable chamber at the top such that building material cannot get through the cover out of nor into the interchangeable chamber and the cover is coupled with the side wall.

Abstract: A lifting system serves for use in a manufacturing device for generatively manufacturing a three-dimensional object by layerwise application and selective solidification of a building material The manufacturing device includes building base on which the object is to be built upon a building surface. The lifting system includes a holding device suitable for holding and height-adjusting the building base. In a position corresponding to an operating state within the manufacturing device, the holding device is arranged in such a way that the building base is attached to the underside of the holding device so that the building surface faces towards the holding device.

Abstract: An interchangeable chamber (4) is provided for a device for producing a three-dimensional object by selectively layer-wise solidifying of a building material at locations that correspond to the cross-section of the object to be produced in the respective layer, wherein the interchangeable chamber comprises a building space (40) for receiving a building platform (41) on which the three-dimensional object (2) can be produced, which building space is designed to be temporarily open in the direction of a top of the interchangeable chamber, as well as optionally a storage container (45) for storing building material and wherein the interchangeable chamber comprises a side wall (401) and a cover (400), wherein the cover (400) is adapted to close the interchangeable chamber (4) at the top such that building material (20) substantially cannot get through the cover out of nor into the interchangeable chamber and the cover is coupled with the side wall, in particular pivotably and/or displaceably coupled.

Abstract: A swap platform support for an additive layer-wise building device, which is configured to produce at least one three-dimensional object on a swap platform (121) by solidifying layer by layer a building material in powder form at positions that correspond to the at least one object in the respective layers comprises a clamping device (115, 116) for detachably fixing a position of the swap platform (121) with respect to the position of the swap platform support, a temperature control system (111) configured to supply heat energy to at least a portion of its environment and/or to remove heat energy from at least a portion of its environment and a pressing device (112) which is suited to press at least a part of the temperature control system (111) against a swap platform (121) when the swap platform is clamped in the clamping device (115, 116).

Abstract: The present invention relates to a method and a system for recycling of remaining powder from an equipment for generatively manufacturing three-dimensional objects (3), wherein, in addition to sieving of remaining powder (3a) or mixing the remaining powder (3a) with fresh powder, a further preparing step for modifying a characteristic of the resulting powder is performed.

Abstract: An immersion nozzle for pouring molten metal, especially steel, from a pouring vessel into a mold of a continuous casting machine. The nozzle includes a substantially tubular upper part that can be attached to the pouring vessel and a lower part that has a broad side significantly larger than its narrow side at the opening end. The upper part has, at the end facing the lower part, a flared section that encircles the entry area of the lower part. A seal is provided between the upper part and the entry area of the lower part. The lower part has a support in the entry area. Holding elements are provided so as to touch the support of the lower part and connect the lower part to the upper part.

Abstract: A rotor pair for a high-pressure screw compressor having main and secondary rotors, the main rotor having essentially convex teeth arranged outside its reference circle and the secondary rotor having essentially concave teeth arranged inside its reference circle. The distance between the axes of the rotors, which limits the size of the possible bearings, is enlarged only by increasing the number of teeth and the diameter of the secondary rotor so that it is larger than the main rotor.

Abstract: The invention relates to a housing for opto-electronic components having an integrated Joule-Thomson cooler, the housing including a lower section, a center section and an upper section intended for radiation intake. The invention provides for the housing lower section and the housing center section, which enclose a heat exchanger pipe of the Joule-Thomson cooler, to be made of a material with low heat conductivity, and for the heat exchanger pipe to be arranged in coil form in one plane.

Abstract: A method of producing a semiconductor device including an image recording unit composed of a plurality of separated detector mosaic regions of infrared sensitive monocrystalline compound semiconductor material disposed on an insulating layer on a surface of a semiconductor body containing an integrated circuit which functions as a readout device for the image recording body, wherein: the plurality of mosaic regions are formed by initially depositing a layer of the compound semiconductor material in polycrystalline form directly onto the surface of the insulating layer, and subsequently recrystallizing the polycrystalline material into monocrystalline form by irradiation of the polycrystalline material with a focused high energy light beam to melt the semiconductor material, followed by resolidification.

Abstract: The invention relates to an arrangement for an electronic component operable at low temperatures, in particular, to a radiation sensitive semiconductor component. The arrangement consists of a housing for the component and of a cooler which is in communication with the housing and operates in accordance with the Joule-Thomson effect. The invention consists in that there is arranged between the cooler and the adjacent housing wall a super-insulation comprised of a single- or multi-layered foil with low thermal conductivity and capacity and high thermal-transfer resistance.

Abstract: The invention relates to a housing for opto-electronic components, with the semiconductor component being cooled by a cooler which operates in accordance with the Joule-Thomson effect and is in communication with the housing. The gist of the invention is that the non-evacuation housing comprises several sections, with the first section of the housing which is in direct communication with the cooler having a low thermal conductivity and a low thermal capacity, whereas the end section of the housing containing a radiation transmitting window has a high thermal conductivity and a high thermal capacity.