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Oelmann

Ansgar Oelmann, Mobile, AL US

Patent application numberDescriptionPublished
20110076608CARBON BLACK, A PROCESS FOR PREPARATION THEREOF AND USE THEREOF - Carbon black with a content of polycyclic aromatic hydrocarbons measured by the 22 PAH method of less than 5 ppm and an STSA surface area of <90 m03-31-2011

Stefan Oelmann, Hemer DE

Patent application numberDescriptionPublished
20090159435Micro-Structured Insulating Frame for Electrolysis Cell - The invention relates to an insulating frame of an electrolysis cell having a microstructured internal section allowing the penetration of the electrolyte even if the structured section is partly or completely overlapped by the membrane, and to an electrolysis cell equipped with the same.06-25-2009
20090236220Electrolysis cell - The invention relates to an electrolysis cell of the single-element type design for chlor-alkali electrolysis plants, comprising an anode compartment and a cathode compartment, each of the two compartments containing an electrode connected to the rear wall of the respective compartment by means of parallel bars. The electrodes are thus subdivided into several sections. In accordance with the invention, at least one of two electrodes is provided with a curved shape in each section, this curved section protruding towards the opposite electrode and pressing a membrane area against the opposite electrode. According to a preferred embodiment, the curved shape of the various electrode sections is obtained by means of springs.09-24-2009
20100219165METHOD OF AND DEVICE FOR BUTT WELDING WITHOUT WELD FILLER MATERIALS THIN METAL SHEETS USING CLAMPING PRESSING DEVICES, AT LEAST ONE PRESSING ELEMENT BEING SUITABLE FOR APPLYING TWO OR MORE DISTINCT PRESSURE LEVELS - A device for the linear butt welding of thin metal sheets without weld filler materials comprising movable welding heads, a clamping device having at least two pressing elements which operate independently of one another at least one of the pressing elements being suitable for applying two or more distinct pressure levels and additional horizontal pressing elements are further provided in order to press the metal sheets to be welded against one other while being deformed, until full-area contact of the metal-sheet edges butting against one another is achieved as well as a welding method making use of the device.09-02-2010
20100294653Device for electrochemical water preparation - The invention relates to an electrolysis device for cleaning acidic waters which comprises a cathode, an anode, and an ion exchange membrane, wherein the membrane is arranged between the cathode and the anode and is attached at least along the entire circumference of its rim, wherein many inlets and outlets are arranged along the upper and lower rim of the electrolysis device which are linked to the cathode space or to the anode space, in such a way that a plug flow, ideally with a laminar profile, is created in the cathode space and in the anode space.11-25-2010

Stefan Oelmann, Herner DE

Patent application numberDescriptionPublished
20100092692METHOD AND DEVICE FOR COATING SUBSTRATES - The invention relates to a method for coating one or more sides of substrates with catalytically active material, comprising material deposition under vacuum in a vacuum chamber, wherein the following steps are performed: (a) loading the vacuum chamber with at least one substrate, (b) closing and evacuating the vacuum chamber, (c) cleaning the substrate by introducing a gaseous reducing agent into the vacuum chamber, (d) increasing the size of the substrate surface by depositing a vaporous component on the substrate surface, (e) coating by a coating process taken from the group of plasma coating processes, physical gas deposition, sputtering processes or the like, wherein one or more metals and/or alkaline and/or earth alkaline metals or their oxides are applied to the surface of the substrate. This method may be used, for example, for coating electrodes which are used in the chlor-alkali electrolysis.04-15-2010

Werner Oelmann, Dorsten DE

Patent application numberDescriptionPublished
20080202732Shell-And-Tube Heat Exchanger Comprising a Wear-Resistant Tube Plate Lining - The invention relates to shell-and-tube heat exchangers, including those used to cool cracking gas in petroleum refining, containing wear resistant tube plate linings. In the heat exchangers, at least a portion of the inlet tube plate is covered by wear-resistant inserts which can be at least partially inserted into the heat exchanger tubes.08-28-2008