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| Number | Title | Issue Date |
| 7390676 | System and method for programmable illumination pattern generation A method and apparatus for the manipulation of colloidal particulates and biomolecules at the interface between an insulating electrode such as silicon oxide and an electrolyte solution. Light-controlled electrokinetic assembly of particles near surfaces relies on t... | 06/24/2008 |
| 7222657 | Metal object forming method and mold used for the same A metal object is formed by die-casting with the use of a specially treated mold. The mold has cavity-defining surfaces covered by a heat-insulating layer made of a material that includes ceramic powder and heat-resistant resin. Molten metal is injected into the cav... | 05/29/2007 |
| 7192620 | Mold-release coating systems A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10 weight percent solids. The wax material is permitted to substantially ... | 03/20/2007 |
| 6960367 | Sandcasting pattern coating compositions Sand casting is an old art. In this molding process sand is compacted around a pattern and the pattern is removed, leaving a mold cavity the shape of the pattern. Molten metal can then be poured into the cavity to form the object. To increase the life of the mold, a... | 11/01/2005 |
| 6897073 | Non-specific binding resistant protein arrays and methods for making the same Arrays of protein-capture agents useful for the simultaneous detection of a plurality of proteins which are the expression products, or fragments thereof, of a cell or population of cells in an organism are provided. A variety of antibody arrays, in particular, are ... | 05/24/2005 |
| 6506443 | Method and device for applying surface-modifying auxiliary substances to working area interior surfaces of die molds A method of applying surface-modifying auxiliary substances to the working area interior surfaces of die molds for the production of molded products, in particular made of rubber or plastics. The auxiliary substance is supplied in the form of a gas or vap... | 01/14/2003 |
| 6475808 | Arrays of proteins and methods of use thereof Protein arrays for the parallel, in vitro screening of biomolecular activity are provided. Methods of using the protein arrays are also disclosed. On the arrays, a plurality of different proteins, such as different members of a single protein family, are ... | 11/05/2002 |
| 6406921 | Protein arrays for high-throughput screening Protein arrays and protein-coated substrates for the parallel, in vitro screening of biomolecular activity are provided. Methods of using the protein-coated substrates and protein arrays are also disclosed. A plurality of different members of a single pro... | 06/18/2002 |
| 6365418 | Arrays of protein-capture agents and methods of use thereof Arrays of protein-capture agents useful for the simultaneous detection of a plurality of proteins which are the expression products, or fragments thereof, of a cell or population of cells in an organism are provided. A variety of antibody arrays, in parti... | 04/02/2002 |
| 6316047 | Method for applying dry powder refractory coating to sand cores A method of applying a refractory coating to densified foundry sand cores having micropores between the sand grains having the steps of: (a) mixing a dry powder refractory material (anhydrous MmgOSiO2 talc) with a dry powder impacting media, th... | 11/13/2001 |
| 5855966 | Method for precision polishing non-planar, aspherical surfaces A method for precison polishing non-planar, aspherical surfaces in substrates, particularly surfaces of molding tool substrates for molding optical surfaces therewith, which is accomplished by coating the non-planar, aspherical surface with a layer of mat... | 01/05/1999 |
| 5749409 | Method of forming refractory coated foundry core Refractory coated gelatin-bonded foundry sand core made by waterproofing the surface of the core and immersing the waterproofed core in an aqueous refractory suspension to deposit the refractory.... | 05/12/1998 |
| 5705266 | Core material for the casting of articles and related process A core material for making cores to be used in molds for the casting of metals and comprising a mixture of hollow ceramic particles uniformly distributed throughout a resin binder of organic material. The hollow ceramic particles are individually in intim... | 01/06/1998 |
| 5500041 | Composition for preparation of articles of calcium oxide A composition for the preparation of articles of calcium oxide, comprising calcined calcium oxide and an organic phase consisting of at least one polyol in an anhydrous medium. The composition may be used to form linings for molds and crucibles intended t... | 03/19/1996 |
| 5298556 | Mold release composition and method coating a mold core An aqueous reaction mixture having a pH of 4.5 to 5.5 of a multi-functional polydimethyl siloxane emulsified polymer, a methyl triethoxy silane, a mixture of substituted nonyl and octyl phenol derivative surfactants, non-ionic fluorinated alkyl ester surf... | 03/29/1994 |
| 5268195 | Method and apparatus for producing finely pulverized sand particles for use in the production of casting molds and for coating with the finely pulverized sand particles models for shaped castings Finely pulverized facing sand particles are provided for the production of casting molds in metal foundries. A feed device passes a bed of molding sand containing lumps to a refining device. The refining device includes a plurality of refining elements on... | 12/07/1993 |
| 5219925 | Mold release composition and method of coating a mold core An aqueous reaction mixture of a multi-functional polydimethyl siloxane emulsified polymer, a methyl triethoxy silane, a mixture of substituted nonyl or octyl phenol derivative surfactants and synthetic ethoxylated amine surfactants, and ethanol. The reac... | 06/15/1993 |
| 5215143 | Non-porous carbon molding (foundry) sand and method of casting A new and improved, non-porous carbon foundry sand and a method of treating a fluid coke, having a spherical or ovoid particle shape and a size suitable for a coating surface, or a core or mold surface in the foundry industry, wherein the carbon sand is p... | 06/01/1993 |
| 5194584 | Biodegradable concrete form release agent A small amount of tall oil uniformly dispersed in a vegetable oil is a superior concrete from release coating composition.... | 03/16/1993 |
| 5100697 | Method for improving the release of a moulded concrete body from the mould The release of a moulded concrete body from the mould can be improved by applying, to the mould, an effective amount of a concrete release composition in the form of an oil-in-water emulsion in which the oily phase is at least one of the following: a mine... | 03/31/1992 |
| 5094289 | Roasted carbon molding (foundry) sand and method of casting A new and improved carbon sand and a method of treating a petroleum fluid coke, having a spherical or ovoid particle shape and a size suitable for a core or mold surface in the foundry industry, by heating or roasting the carbon particles at a temperature... | 03/10/1992 |
| 4961458 | Method of forming a die casting with coated expendable cores A method for producing high pressure die castings with undercut regions comprises forming an expendable coated core of specific composition, placing it in the die in a die casting machine, injecting molten metal into the die to form the casting and separa... | 10/09/1990 |
| 4934440 | Mold surface treatment process and mold A mold surface treatment process comprises: providing a fluidized bed of a treating powder; holding the mold in the fluidized bed to fill up the depressions of the mold surfaces with the treating powder by employing a surface treating member for pushing t... | 06/19/1990 |
| 4873114 | Coating expendable substrates which contact molten metal An expendable substrate which in use contacts molten metal, for example a foundry mould or core or ladle lining, is coated with a coherent layer of refractory particles by tribo-electrically charging refractory particles coated with an organic binder, the... | 10/10/1989 |
| 4867225 | Coated expendable cores for die casting dies The coatings are for an expendable sand core for die casting dies, which sand core has spaces between its contacting sand grains at least partially filled with resin binder. The first, base, hard, or refractory coating for this core is applied from an aqu... | 09/19/1989 |
| 4775554 | Method of providing a mould with a release layer A method of providing a mould 1 (FIG. 1) with a release layer, in which a hydrophilic, inorganic surface 2, 4 of the mould is treated with a silane compound of the formula (R)m --Si--(X)4-m under anhydrous conditions.... | 10/04/1988 |
| 4766943 | Expendable die casting sand core Sand cores containing an acid curable binding agent are used in the production of die castings having undercut regions because of the favorable combination of shakeout properties, resistance to washout, and resistance to surface penetration.... | 08/30/1988 |
| 4728531 | Method of drying refractory coated foam patterns A method is disclosed of dehydrating a thin water based ceramic slurry coating on a foam pattern assembly having hidden internal surfaces. The method comprises sequentially subjecting the coated assembly to a first warm air flow at a sufficient temperatur... | 03/01/1988 |
| 4713294 | Foundry shell core and mold composition A foundry shell core and mold composition comprises particulate matter coated with a curable phenolic-furan resin. The process for making the resin coated particulate matter substantially eliminates the sue of hexamethylene tetramine.... | 12/15/1987 |
| 4685503 | Method of manufacturing a disintegratable core for casting A core is formed by molding a mixture of an organic binding material and a fireproof granular substance. The core is impregnated with an aluminum-phosphorus oxide solution. The impregnated core is heated at 400°-1000° C. for about an hour. The disintegr... | 08/11/1987 |
| 4676997 | Sand casting pattern coating compositions Sand casting is an old art. In this molding process sand is compacted around a pattern and the pattern is removed, leaving a mold cavity the shape of the pattern. Molten metal can then be poured into the cavity to form the object. To increase the life of ... | 06/30/1987 |
| 4664948 | Method for coating refractory molds Binder, filler, and refractory compositions and methods of using and making these compositions are disclosed. The binder composition comprises colloidal silica, a liquid material containing Si-OH groups, a solvent which is capable of solubilizing the liqu... | 05/12/1987 |
| 4606929 | Method of ionized-plasma spraying and apparatus for performing same The disclosed method of ionized-plasma spraying includes the steps of loading an article to be coated into a vacuum chamber, pumping out active gases from the vacuum chamber to a pre-evacuation level, cutting off the pre-evacuation pump, leaking an inert ... | 08/19/1986 |
| 4560586 | Process of deburring moldings made from granular material A process for the deburring of bonded moldings of granular material, for example, casting sand cores, by coating them in the same operation with a surface layer. The moldings are circulated within an annular vibrator together with an abrasive body medium ... | 12/24/1985 |
| 4529028 | Coating for molds and expendable cores A resin-bonded sand core for high-pressure die casting methods having a first refractory coating, such as of silica, with an inorganic binding agent of colloidal silica and a clay such as kaolin, and a second or top coating of a refractory material contai... | 07/16/1985 |
| 4460629 | Process for preparation of resin-coated molding sand The process for preparing a resin-coated casting sand by coating sand grains with a binder comprising a liquid phenolic resin component and a polyisocyanate component, the improvement of which comprises coating sand grains with an organic solvent prior to... | 07/17/1984 |
| 4443259 | Coating for foundry cores and molds A coating for foundry cores and molds comprising an aqueous suspension of clay, olivine, and sodium tripolyphosphate.... | 04/17/1984 |
| 4413666 | Expendable die casting sand core Sand cores containing an acid curable binding agent are used in the production of die castings having undercut regions because of the favorable combination of shakeout properties, resistance to washout, and resistance to surface penetration.... | 11/08/1983 |
| 4319925 | Coating compositions for metal casting molds A composition for coating the molding surfaces of molds for casting metal parts comprising an aqueous dispersion containing finely divided zirconia, a colloidal silica composition, finely divided mica, finely divided zircon, finely divided bentonite and, ... | 03/16/1982 |
| 4289803 | Foundry mold treating compositions and methods of making same Phosphosilicate compositions are disclosed for treating foundry molds and like products to enhance mold strength and refractoriness. The phosphosilicates, characterized more specifically as silicyl metaphosphates, may be used in combination with select re... | 09/15/1981 |
