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Arndt, Berlin

Andreas Arndt, Berlin DE

Patent application numberDescriptionPublished
20110160519ROTATIONAL PUMP AND METHODS FOR CONTROLLING ROTATIONAL PUMPS - A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.06-30-2011

Axel Arndt, Berlin DE

Patent application numberDescriptionPublished
20100040775METHOD AND DEVICE FOR THE COLD-GAS SPRAYING OF PARTICLES HAVING DIFFERENT SOLIDITIES AND/OR DUCTILITIES - In a method for the cold-gas spraying of particles having different solidities and/or ductilities and in a cold-gas spraying device (02-18-2010

Frank Arndt, Berlin DE

Patent application numberDescriptionPublished
20080209896Catalyst System for an Internal Combustion Engine and Method for Producing It - A catalyst system for an internal combustion engine with at least one cylinder and/or piston is characterized in that the catalyst is arranged in the form of nanoparticles on the cylinder and/or piston.09-04-2008
20090005233Component with a ceramic coating, into which particles are embedded, and method for producing said component - The subject matter of the invention is a component which is provided with a ceramic coating forming the surface. Inventively there is provision at least in a cover layer of the coating for nanoparticles made from a colorant (CrCoAl or a spinel-type oxide) and aluminum oxide nanoparticles. This combination of nanoparticles in the coating advantageously results in a resistance to high temperatures of the coloring of the surface of up to 1000° C. not previously known. This allows even components under great stress, such as for example compressor or turbine blades of a gas turbine, to be provided with temperature-resistant coloring. This can then be used for an optical inspection for example. Protection is also claimed for a method for creating the inventive coating01-01-2009
20090117027Method of Carrying Out a Reaction in a Microreaction Chamber - Disclosed is a method for carrying out a reaction in a microreaction chamber. Nanoparticles which have been advantageously subjected to specific reactions in the microreaction chamber are used for carrying out the reaction. The obtained reaction product, which is preferably also provided in the form of nanoparticles. can then be removed from the microreaction chamber. Advantageously, the ongoing reaction can be specifically influenced by using the microreaction chamber. Both endothermic and exothermic reactions can be carried out with an accurately predictable result by feeding energy in a dosed manner into/out of the reaction chamber.05-07-2009
20090252953ARRANGEMENT COMPRISING NANOPARTICLES, AND METHOD FOR THE PRODUCTION THEREOF - An arrangement (10-08-2009
20090315573Component with a detection structure for mechanical damage - A component made of electrically insulating material with a detection structure for mechanical damage such as cracks is disclosed. The detection structure is a conductor. The electrical properties of the detection structure are modified as more and more cracks are formed such that the component will be replaced in time before breaking. The electrical conductor is formed by particles that are in contact with each other and have a metallic surface such that an electrical conductor is created which is particularly sensitive to mechanical damage, thus rendering the detection structure highly sensitive. Furthermore, if the metallic surface is produced merely by cladding the particles while the inside of the particles is made of the same material as the component, a conductor featuring an adapted thermal expansion behavior is created for components that are subject to great thermal stress, e.g. heat shield panels.12-24-2009
20100189895METHOD FOR COATING THE INNER WALLS OF PIPES AND DEVICE SUITABLE THEREFOR - In a method for coating the inner walls of pipes (07-29-2010

Patent applications by Frank Arndt, Berlin DE

Matthias Arndt, Berlin DE

Patent application numberDescriptionPublished
20090069555DEVICE AND PROCEDURE FOR AUTOMATED ISOLATION AND PURIFICATION OF NUCLEIC ACIDS FROM COMPLEX STARTING MATERIALS OF THE USERS CHOICE - A reaction unit containing a bottom part and a top part for pipetting a liquid, wherein the bottom part contains a reaction cavity with a permeable filter grid insert and the top part contains a reaction cavity which can be fixed on said bottom part and contains a cavity or covering for receiving a magnet.03-12-2009