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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8007580 | Material used to combat thermal expansion related defects in high temperature casting processes An additive to foundry sand molding and core aggregates is used to produce sand cores and molds comprising kyanite, spodumene, titanium dioxide, ilmenite and black iron oxide. The additive produces a sand-based foundry molding and core aggregate which resists the fo... | 08/30/2011 |
| 7442246 | Phosphate-based dental investing material In order to produce a dental cast product having the flat surface, by blending a dispersant with a phosphate-based investing material to improve the dispersability of an aggregate powder and a binder powder so as to prevent a agglomeration of the aggregate powder an... | 10/28/2008 |
| 7413598 | Mold and method for manufacturing the same The present invention discloses a mold and a method of manufacturing the mold. The mold includes a mold matrix and a number of boron nitride nanotubes sintered together with the mold matrix. Each boron nitride nanotube capsules a number of fullerenes therein respect... | 08/19/2008 |
| 7370688 | Lost wax moulding method with contact layer A method of manufacture of a multilayer ceramic shell mould whereof at least one contact layer out of a wax master pattern or a part to be manufactured, or other similar material, includes a step of preparing a first slip containing ceramic particles and a binder; a... | 05/13/2008 |
| 7348286 | Ceramic composite material and method of its manufacture Ceramic composite material that has excellent mechanical properties within a range from room temperature to high temperature and high die release with respect to glass, resins, ceramics, and similar substances. The ceramic composite material is composed of a ceramic... | 03/25/2008 |
| 7332123 | Method for manufacturing composite articles and the articles obtained therefrom A method of molding an article comprises inserting a mandrel into the cavity of the mold; placing a niobium based refractory metal intermetallic composite powder into a cavity of a mold; consolidating the niobium based refractory metal intermetallic composite around... | 02/19/2008 |
| 7318466 | Lost wax casting method A method of manufacture of a multilayer ceramic shell mould out of a master pattern includes the steps of dipping the master pattern in a first slip containing ceramic particles and a binder, depositing sand particles to form a contact layer, dipping the master patt... | 01/15/2008 |
| 7287573 | Silicone binders for investment casting A green product for use in fabricating a ceramic article comprises a ceramic powder immobilized within a silicone matrix, wherein the silicone matrix comprises one or more cross linked or polymerized silicone monomers and/or oligomers, wherein the one or more cross ... | 10/30/2007 |
| 7258158 | Increasing stability of silica-bearing material Method and apparatus for prolonging the stability (working life) of a ceramic slurry and other aqueous mixture or dispersion containing a liquid silica-bearing or other component as well as the raw liquid silica-bearing component in ambient air over time by providin... | 08/21/2007 |
| 7216691 | Mold-removal casting method and apparatus A process for the casting of metals includes the steps of providing a mold, delivering a molten metal into the mold, solidifying the molten metal, and removing at least a portion of the mold. The step of removing at least a portion of the mold begins before the step... | 05/15/2007 |
| 7199067 | Homogeneous bulky porous ceramic material A homogeneous bulky porous ceramic material is provided, the average pore diameter D50 of which is less than 4 μm and the closed porosity of which is less than 2 μm, and having a bubble point that matches the pore diameter measured on the material. A hollow fiber ... | 04/03/2007 |
| 7173079 | Casting material for producing casting molds for casting high-melting point materials The casting-mold material designed to manufacture casting molds used in casting high melting-point substances. The casting mold formed from a powder component containing magnesium oxide and aluminum oxide and a liquid component. The powder component additionally con... | 02/06/2007 |
| 7165600 | Chemically bonded aggregate mold A mold for the casting of metals including an aggregate comprising a refractory particulate material and a soluble binder which provides for minimal heat transfer between the mold and the molten metal during filling. The aggregate preferably includes at least a prop... | 01/23/2007 |
| 7147031 | Lost pattern mold removal casting method and apparatus A method and apparatus for the lost pattern casting of metals employs an erodable mold including a particulate material and a binder. An erodable backing or coating may be used to support the erodable mold. After a molten metal casting is poured in the mold, the ero... | 12/12/2006 |
| 7128129 | Investment casting slurry composition and method of use A composition and method for forming investment casting shells includes using colloidal silica, zircon flour, and fused silica in a slurry which is applied to a pattern. After the slurry is applied to the pattern, it is allowed to partially or completely solidify. A... | 10/31/2006 |
| 6949136 | High temperature investment material and method for making solid investment molds An improved phosphate-type refractory investment material and method for making solid investment molds especially useful for casting high melting point metals and alloys, such as platinum and the like. The material consists essentially of one or more phosphate salts... | 09/27/2005 |
| 6920911 | Foundry sand with oxidation promoter Sand mold for shaping molten metal cast into the mold. The mold includes sand, a thermally oxidizable polymer amongst the grains of the sand, and a catalyst coating on the gains for promoting the thermal oxidation and breakdown of the polymer in the course of removi... | 07/26/2005 |
| 6918954 | Colloidal silicate dispersion, method for its preparation and its use The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2-12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mi... | 07/19/2005 |
| 6860319 | Acid activated clay for use in foundry sand A foundry sand binder formed by reacting a smectite clay containing exchangeable calcium ions with an acid to enhance the ability of the clay to bind sand in forming a metal casting sand mold. The acid-treated clay is an excellent sand binder for metal casting molds... | 03/01/2005 |
| 6746528 | High temperature investment material and method for making solid investment molds An improved phosphate-type refractory investment material and method for marking solid investment molds especially useful for casting high melting point metals and alloys, such as platinum and the like. The material consists essentially of one or more phosphate salt... | 06/08/2004 |
| 6702886 | Mold coating A coating for a mold surface of a casting mold includes a metallic bond coat bonded to the mold surface and having a continuous, uniform thickness of between about 0.002 to 0.005 inch on the mold surface. A topcoat of yttria stabilized zirconia is located... | 03/09/2004 |
| 6673141 | Foundry sand with oxidation promoter Coating foundry sand with a thin layer of an oxidation-promoting catalyst. Preferred catalysts comprise ferric and cupric oxides. The catalysts promote the oxidation of any polymeric binder or residues admixed with the sand. The sand is coated by wetting ... | 01/06/2004 |
| 6589900 | Ceramic product based on lithium aluminum silicate A ceramic product containing at least 70% lithium aluminium silicate of 100% total mass weight percent; and a non-wetting agent in the form of barium sulphate. Most preferably, the lithium aluminium silicate includes petalite in finely divided form which ... | 07/08/2003 |
| 6551396 | Phosphate investment compositions An investment composition is described for use in investment casting (also called lost wax casting). The composition is a phosphate bonded material that contains mono-ammonium phosphate (MAP), magnesium oxide and silica filler (quartz, cristobalite, or a ... | 04/22/2003 |
| 6436858 | Organic lens molds in inorganic glass and novel inorganic glasses The principal object of the present invention is organic lens molds, constituted wholly or in part of at least one specific inorganic glass, advantageously strengthened by a chemical tempering or a thermal tempering. Said glass has the following compositi... | 08/20/2002 |
| 6291378 | Dental restorations The invention provides a refractory material for use in the manufacture of dental restorations, the refractory material comprising essentially of an admixture of Silica, Silicon Carbide, Magnesium Oxide, Mono Ammonium Phosphate, and Zircon or Aluminium Ox... | 09/18/2001 |
| 6176919 | Water-based paint useful for windshields The invention is directed to a water-based paint composition comprising sodium silicate, water, water-soluble base, metal oxide pigment, a fused silica and, optionally, a low-melting glass frit, soda-lime-silica glass particles and/or zinc oxide. It may f... | 01/23/2001 |
| 6139619 | Binders for cores and molds An inorganic binder system for foundry compositions includes a silicate and added phosphate. The composition produces a binder having the advantageous strength properties of a silicate binder system with the dispersibility properties of a phosphate binder... | 10/31/2000 |
| 6126737 | High solids water-based ceramic paint The invention is directed to a dark colored high-solids water-based paint composition comprising sodium silicate, water, water-soluble base, metal oxide pigment, a low-melting glass frit, and optionally, soda-lime-silica glass particles and/or zinc oxide.... | 10/03/2000 |
| 6017387 | Process for preparing molding sand for green sand mold A process for preparing a molding sand for a green sand mold is provided. The process comprises the step of drying under a reduced pressure of 0 to 0.3 atm for 0.5 to 30 seconds a green molding sand obtained by kneading silica sand, clay, and water, to dr... | 01/25/2000 |
| 6013125 | Investment of powders and method for rapid preparation of investment molds The present invention relates to improved investment powders for use in making improved investment molds for casting metals, and the use of such molds with vacuum and/or either conventional, convection conduction or microwave heating apparatus, to rapidly... | 01/11/2000 |
| 5977007 | Erbia-bearing core A ceramic core that includes, prior to core sintering, erbia filler material alone or admixed with a second ceramic filler material, such as alumina, and a binder to provide a core that is relatively non-reactive with superalloys used in the manufacture o... | 11/02/1999 |
| 5921312 | Soluble core for casting An improved soluble core for die casting metals or metal matrix composites is formed of a mixture of salt and about more than 0 weight % and less than 20 weight % of ceramic material blended together to produce a homogeneous mixture and compacted under pr... | 07/13/1999 |
| 5911269 | Method of making silica sand molds and cores for metal founding Thermal expansion defects, i.e. veining, are reduced in iron, steel, and nonferrous castings by adding a lithia-containing material in a sufficient amount to the silica sand mold to provide about 0.001% to about 2.0% of lithia. The addition of lithia is a... | 06/15/1999 |
| 5893946 | Combustible carbonaceous compositions and methods A combustible carbonaceous composition and method of making a charcoal briquette wherein a finely divided carbonaceous material is combined with an activated carbon and/or an activated graphite (which may be formed in-situ during pyrolysis of the composit... | 04/13/1999 |
| 5865236 | Crushed and graded magnetite ore for manufacturing moulds and cores Crushed and graded magnetite ore is mixed with clay to form foundry moulds and cores. These moulds or cores are useful when casting non-ferrous metals or alloys, especially light metals and light-metal alloys.... | 02/02/1999 |
| 5820662 | Dental investing material A dental investing material is disclosed which comprises a combination of: (a) quartz and/or cristobalite, (b) a phosphate binder, and (c) aluminous cement, wherein said dental investing material is further added with tridymite and magnesium silicate. The... | 10/13/1998 |
| 5769933 | Activated carbon foundry sand additives and method of casting metal for reduced VOC emissions An activated carbon and/or activated graphite foundry sand additive, and method of casting molten metal against a foundry sand containing the additive composition. In another embodiment, the activated carbon and/or activated graphite additive (or portion ... | 06/23/1998 |
| 5766329 | Inert calcia facecoats for investment casting of titanium and titanium-aluminide alloys A calcia mold facecoat is applied to a mold for casting parts composed of reactive metals such as titanium and titanium aluminide. The facecoat is composed of a calcium carbonate based slurry comprising a dense grain calcium carbonate powder and an aqueou... | 06/16/1998 |
| 5730797 | Mortar composition A mortar composition for molding, casting or rendering purposes includes: (a) mixture comprising 1.5 to 8 parts by volume of powdered stone and one part by volume of powdered mica based on the total parts by volume of the composition; and (b) a binder the... | 03/24/1998 |
