Patents Assigned to HERAEUS
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Publication number: 20090110026Abstract: An expendable immersion device for sensing characteristics of molten metal has a contact block and a receptacle tube. The contact block is slidingly disposed at least partially within a distal end of the receptacle tube. The expendable immersion devices includes a sensing element and a heat resistant tube. A distal end of the heat resistant tube is mounted to the sensing element. The sensing element extends partially into the interior of the heat resistant tube. A proximal end of the heat resistant tube is mounted over a distal end of the receptacle tube. A spring element is positioned over a proximal end of the contact block and abuts against the receptacle tube such that a force between the contact block and the sensing element is reduced when the heat resistant tube and sensing element are connected to the distal end of the contact block during assembly.Type: ApplicationFiled: October 24, 2008Publication date: April 30, 2009Applicant: HERAEUS ELECTRO-NITE CO.Inventor: Michael Midash
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Publication number: 20090107837Abstract: A method of recycling ruthenium (Ru) and Ru-based alloys comprises steps of: providing a solid body of Ru or a Ru-based alloy; segmenting the body to form a particulate material; removing contaminants, including Fe, from the particulate material; reducing the sizes of the particulate material to form a powder material; removing contaminants, including Fe, from the powder material; reducing oxygen content of the powder material to below a predetermined level to form a purified powder material; and removing particles greater than a predetermined size from the purified powder material. The purified powder material may be utilized for forming deposition sources, e.g., sputtering targets.Type: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Applicant: HERAEUS INC.Inventors: Wuwen Yi, William Heckman, Bernd Kunkel, Carl Derrington, Patrick Griffin
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Publication number: 20090100871Abstract: A method for manufacturing a silica glass block is provided in which, by markedly reducing the bubbles within the silica glass block, the quality of a silica glass block can be improved, contamination of the silica glass block can be prevented, and the yield of the silica glass block can be improved. The method comprises preparing a natural or synthetic silica raw material powder, packing the silica raw material powder into a glass fusing furnace, preheat treating the silica raw material powder packed into the fusing furnace, heating and fusing the heat preheat-treated silica raw material powder, and cooling a silica glass melt fused in the fusing furnace. The silica raw material powder packed into the fusing furnace is closely packed in the packing step, and an evacuation and a rare gas or H2 gas introduction treatment is performed in the preheat treating step.Type: ApplicationFiled: October 16, 2008Publication date: April 23, 2009Applicants: HERAEUS QUARZGLAS GMBH & CO. KG, SHIN-ETSU QUARTZ PRODUCTS CO., LTD.Inventors: Jiro Sawazaki, Choji Sanada
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Publication number: 20090105367Abstract: An initiator system for self-curing plastic material comprises a) at least one salt of a dialklylbarbituric acid and/or an alkylcycloalkylbarbituric acid and/or alkylarylbarbituric acid and/or a cycloalkylarylbarbituric acid that is insoluble in methacrylate monomers; b) at least one heavy metal salt that is insoluble in methacrylate monomers; c) at least one halogenide ion donor that is insoluble in methacrylate monomers; and d) at least one acid that is soluble in methacrylate monomers. The initiator system can be used for the preparation of paste/paste, paste/powder, paste/liquid, powder/liquid, and liquid/liquid combinations for the production of medical plastic material and dental materials. Additionally, a bone cement composition containing the initiator system is described.Type: ApplicationFiled: October 20, 2008Publication date: April 23, 2009Applicant: HERAEUS MEDICAL GMBHInventors: SEBASTIAN VOGT, HUBERT BUCHNER
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Publication number: 20090105369Abstract: What is described is a PMMA bone cement, containing at least one homopolymer or one copolymer having a glass transition temperature of more than 45° C., and at least one biocompatible elastomer that has a glass transition temperature of less than 37° C. and is soluble or insoluble in alkylmethacrylates and/or alkyldimethacrylates and/or alkyltrimethacrylates and/or alkyltetramethacrylates and has a residual monomer content of less than 5 percent. The PMMA bone cement is preferably used as self-curing plastic material for the fixation of primary total articular endoprostheses and revision total articular endoprostheses. Moreover, the PMMA bone cement can be used as self-curing filling material for vertebroplasty, kyphoplasty or femoral neck augmentation as well as for the production of temporary place-holders for two-stage revisions of total articular endoprostheses.Type: ApplicationFiled: October 21, 2008Publication date: April 23, 2009Applicant: HERAEUS MEDICAL GMBHInventors: SEBASTIAN VOGT, HUBERT BUCHNER
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Publication number: 20090105366Abstract: What is described is a paste-like PMMA bone cement that is characterised in that a paste-like component A, which is made up of one or more methacrylate monomers that can be distilled and polymerised by radical polymerisation, at least one polymer that is soluble in the methacrylate monomer/methacrylate monomers, at least one particulate polymer that is insoluble in the methacrylate monomer/methacrylate monomers and has a particle size of less than 500 ?m, and at least one radical initiator, and a paste-like component B, which is made up of one or more methacrylate monomers that can be distilled and polymerised by radical polymerisation, at least one polymer that is soluble in the methacrylate monomer/methacrylate monomers, at least one particulate polymer that is insoluble in the methacrylate monomer/methacrylate monomers and has a particle size of less than 500 ?m, and at least one accelerator, is present and in that a tack-free paste that cures by itself is generated upon mixing the paste-like components AType: ApplicationFiled: October 20, 2008Publication date: April 23, 2009Applicant: HERAEUS MEDICAL GMBHInventors: SEBASTIAN VOGT, HUBERT BUCHNER
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Publication number: 20090105144Abstract: One-component bone cement pastes, containing: AI at least one methacrylate monomer that is suited for radical polymerisation; AII at least one polymer that is soluble in AI; AIII at least one particulate polymer that is insoluble in AI and has a particle size of less than 500 ?m; optionally AIV at least one initiator that can be activated, in particular at least one radical-forming initiator or at least one radical initiator that is soluble in AI and subject to thermal decomposition; optionally AV at least one electrically conductive radio-opaquer, in particular in the form of ferromagnetic particles; are well-suited, e.g.Type: ApplicationFiled: October 21, 2008Publication date: April 23, 2009Applicant: HERAEUS MEDICAL GMBHInventors: SEBASTIAN VOGT, HUBERT BUCHNER
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Publication number: 20090098370Abstract: To provide a black synthetic quartz glass with a transparent layer, which has high emissivity in the far infrared region, has excellent light-shielding properties, maintains the same degree of purity as synthetic quartz glass in terms of metal impurities, has high-temperature viscosity characteristics comparable to natural quartz glass, can undergo high-temperature processing like welding, and does not release carbon from its surface; together with a method for the production thereof. A porous silica glass body containing hydroxyl groups is subjected to a gas phase reaction in a volatile organosilicon compound atmosphere at a temperature between 100° C. and 1200° C. and, following the reaction, evacuation is commenced and, on reaching a degree of vacuum exceeding 10 mmHg (1343 Pa), heating is carried out at a temperature between 1200° C. and 2000° C. to produce a compact glass body.Type: ApplicationFiled: October 10, 2008Publication date: April 16, 2009Applicants: HERAEUS QUARZGLAS GMBH & CO. KG, SHIN-ETSU QUARTZ PRODUCTS CO., LTD.Inventors: Tatsuhiro Sato, Nobumasa Yoshida
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Publication number: 20090091418Abstract: A coated wire is solderable with soft solder while maintaining separate phases of the core and the coating. A 100 ?m to 400 ?m thick nickel wire may be coated galvanically with silver. For a film resistor with coated wires as connection wires, including a platinum measurement resistor on an electrically insulating substrate and connection wires connected to the measurement resistor, the connection wires have a coated nickel core. The coating may be made of silver or glass or ceramic or a mixture of these materials, or on its outside may be made of glass or ceramic or a mixture of these materials. For producing film resistors a thin metal or glass component is deposited on a connection wire connected to a track conductor arranged on an electrically insulating substrate, and a thick glass paste is deposited and fired on this metal or glass component. For mass production of film, several film resistors encased together in glass may be partitioned by fracturing.Type: ApplicationFiled: September 24, 2008Publication date: April 9, 2009Applicant: HERAEUS SENSOR TECHNOLOGY GMBHInventor: Matsvei ZINKEVICH
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Publication number: 20090084690Abstract: The invention relates to a single-dose package for liquid, pasty or semi-solid materials, with a fluid container of at least one lower and at least one upper partial container, whereby, after filling, the at least one lower partial container is provided to be connected at a common seam to the at least one upper partial container such that the upper partial container sits on top of the lower partial container at the seam, and the upper partial container carries a removal spout, on which a circumferential splash protection neck is provided.Type: ApplicationFiled: September 29, 2008Publication date: April 2, 2009Applicant: HERAEUS KULZER GmbHInventors: CHRISTIAN BRESSLER, MARCUS HOFFMAN
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Publication number: 20090072063Abstract: A spool includes a body and a chromium layer. The body integrally includes a first portion having an annular shape and a second portion having a tubular shape. The body is formed using plastic. The first portion is provided on both sides of the second portion. The chromium layer is plated on the body. The chromium layer has a uniform thickness of about 0.1 ?m to about 100 ?m. A gold alloy wire is wound on the chromium layer. The chromium layer has a glossy surface. The spool is combined with a bonding device such that the spool electrically connects the bonding device to the gold alloy wire wound on the chromium layer. The shape of the spool is not easily changed by an external impact. When the gold alloy wire is wound on the spool, a scratch is not formed on the spool. Furthermore, the cost required for forming the spool is relatively small so that the spool may be used as an expendable supply. As a result, a recycling process is not required.Type: ApplicationFiled: September 18, 2008Publication date: March 19, 2009Applicant: W.C. HERAEUS GMBHInventors: Dong-Ik YANG, Eun-Kyun CHUNG, Joong-Geun SHIN, Nam-Kwon CHO
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Publication number: 20090058219Abstract: A slip ring has a substrate material and a sliding contact surface made of gold or a gold alloy. The sliding contact surface is stabilized by a support base. The slip ring is used in slip ring transmitters, in particular in wind power plants or industrial robots, for transmitting control signals and control currents and generator currents. An extended service life, in conjunction with improved quality, a reduced drop in voltage and considerable savings in the amount of gold used can be achieved with the slip ring.Type: ApplicationFiled: April 4, 2008Publication date: March 5, 2009Applicant: W.C. HERAEUS GMBHInventors: Bernd GEHLERT, Rolf PAULSEN
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Publication number: 20090052152Abstract: A high-temperature platform chip has at least three electrodes on an electrically insulating substrate constructed as a heating plate with a heat conductor on the back side.Type: ApplicationFiled: August 19, 2008Publication date: February 26, 2009Applicant: HERAEUS SENSOR TECHNOLOGY GMBHInventors: Karlheinz ULLRICH, Karlheinz WIENAND
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Publication number: 20090053089Abstract: A method of making a homogeneous granulated metal-based powder, comprises steps of: providing preselected amounts of at least one metal element or metal alloy, at least one ceramic compound, and/or at least one non-metallic element; forming a homogeneous slurry/suspension or wet mixture comprising the preselected amounts of metal element(s) and/or metal alloys, ceramic compound(s), and/or non-metallic element(s), a liquid phase comprising at least one liquid, and at least one binder material; drying the slurry/suspension or mixture to remove at least a portion of the liquid phase and form a powder mixture comprising partially or completely dried granules; and subjecting the granules to a thermal de-binder process for effecting: additional removal of any remaining liquid phase, if necessary; removal of the at least one binder material; reduction of carbon content; reduction of oxygen on the surfaces or interior of the metal or metal alloy phases in the granules; and optional partial sintering for strengtheningType: ApplicationFiled: August 20, 2007Publication date: February 26, 2009Applicant: HERAEUS INC.Inventors: Fenglin YANG, Carl Derrington, Bernd Kunkel
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Publication number: 20090041960Abstract: A rotating mold has a plurality of air channels that communicate with a cavity formed in the mold. Silica grain is deposited in the rotating mold and then formed into the shape of a crucible having a lower portion that comprises a substantially uniformly thick wall. An upper portion of the grain is formed into a substantially narrowed wall portion about the perimeter of the formed shape. The silica grain is heated, and a pump draws gas through the air channels while the silica fuses. There is a pressure drop across the narrowed wall portion. After fusing, the upper portion of the crucible, including the narrowed wall portion, is cut off.Type: ApplicationFiled: August 8, 2007Publication date: February 12, 2009Applicants: HERAEUS SHIN-ETSU AMERICA, INC., SHIN-ETSU QUARTZ PRODUCTS CO., LTD.Inventors: Katsuhiko Kemmochi, Yasuo Ohama
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Publication number: 20090036565Abstract: Dental composite materials based on (meth)acrylate, exhibiting a proportion of TCD monomers in the total composition of 1-15% by weight and the quotient of flexural strength/shrinkage tension is at least 35.Type: ApplicationFiled: July 7, 2008Publication date: February 5, 2009Applicant: HERAEUS KULZER GMBHInventors: Andreas Utterodt, Klaus Ruppert, Matthias Schaub, Christine Diefenbach, Kurt Reischl, Alfred Hohmann, Michael Eck, Nelli Schonhof, Jutta Schneider
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Publication number: 20090020253Abstract: A device is provided for use at temperatures above 1000° C. or in steel melts. The device has a body based on sand, high temperature-resistant hollow balls and/or high temperature-resistant hollow fibers and contains water glass and a cement.Type: ApplicationFiled: July 17, 2008Publication date: January 22, 2009Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.Inventor: Johan KNEVELS
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Publication number: 20090022621Abstract: The invention relates to a gold alloy containing 99 wt. %, preferably 99.9 wt. % gold, and 1 to 1000 ppm, preferably 10 to 100 ppm calcium, and 1 to 1000 ppm, preferably 10 to 100 ppm ytterbium or europium or a mixture of ytterbium and europium, as well as a method for producing a homogeneous gold alloy containing europium and/or ytterbium.Type: ApplicationFiled: February 13, 2007Publication date: January 22, 2009Applicant: W.C. HERAEUS GMBHInventors: Albrecht Bischoff, Lutz Schraepler, Holger Zingg
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Publication number: 20090013757Abstract: A device is provided for collection of gases in molten metals, the device having an immersion end with a gas collection body, a gas supply line opening at the immersion end, and a gas discharge line for gases penetrating the gas collection body. The gas collection body has an end face arranged on the immersion end and side walls of the collection body, and at least one part of the gas collection body has a gas impermeable layer. A measurement method is also provided using the device.Type: ApplicationFiled: July 9, 2008Publication date: January 15, 2009Applicant: HERAEUS ELECTRO-NITE INTERNATIONAL N.V.Inventors: Erik GERITS, Paul Clement VERSTREKEN, Jos SWENNEN, Jozef Theodoor AEGTEN
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Publication number: 20090011916Abstract: Pressable glass-ceramic compositions for dental purposes of the composition I, II or III I II III ZrO2 17-70%? ZrO2/Al2O3 15-70%? Al2O3 ??15-70% SiO2 17-59%? SiO2 17-59%? SiO2 ??17-59% Al2O3 ?2-15% ZrO2 ?2-15% ZrO2 ???2-15% Y2O3 ??0-6% Y2O3 ??0-6% Y2O3 ???0-6% K2O 3-12.5%? K2O 3-12.5%? K2O ?3-12.5% Na2O 0.2-8.5%?? Na2O 0.2-8.5%?? Na2O 0.2-8.5% Li2O 0-1.5% Li2O 0-1.5% Li2O ???0-1.5% CaO 0.3-2% CaO 0.3-2% CaO ???0.3-2% B2O3 0.1-5% B2O3 0.1-5% B2O3 ???0.1-5% F 0-2.5% F 0-2.5% F ???0-2.5% CeO2 0.2-2% CeO2 0.2-2% CeO2 ???0.2-2% TiO2 0-1.5% TiO2 0-1.5% TiO2 ???0-1.5% are particularly suitable for the manufacturing of ceramic veneer frames.Type: ApplicationFiled: September 16, 2008Publication date: January 8, 2009Applicant: HERAEUS KULZER GMBHInventor: Jurgen STEIDL