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| Number | Title | Issue Date |
| 7278465 | Investment casting slurry composition and method of use An investment casting method involves producing a casting shell by applying a hardenable moist mixture to a sacrificial pattern. To hasten the hardening of the moist mixture to create the shell, a stucco coat is subsequently applied to the mixture. In some cases, th... | 10/09/2007 |
| 7188660 | Method for producing a molding sand that is in particular recirculated, for foundry purposes A method is for producing a moulding sand that is in particular recirculated, for foundry purposes. A mixture of a granular substance and aggregates, such as a binding agent and water, are added to a material that is not capable of swelling in water. The latter mate... | 03/13/2007 |
| 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 |
| 6699314 | Mold releasing agent for centrifugal casting mold A mold releasing agent suitable for easily casting a cylindrical cast member which is superior in adhesion on cast parts at low cost, is provided. A mold releasing agent for a centrifugal casting mold comprises a binder, a heat insulating agent, and a foa... | 03/02/2004 |
| 6467525 | Gelatin coated sand core and method of making same In a method of making a molded article for use in a casting process, sand particles are mixed with protein and water to effect a coating of protein on the sand particles. Then, the protein coated sand particles are dried and blown into a pattern mold to f... | 10/22/2002 |
| 6447593 | 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 ... | 09/10/2002 |
| 6436334 | Process for producing inorganic mold A process for producing inorganic molds involving molding a kneaded mixture containing a particulate inorganic material and water, which process comprises adding water-soluble hemicellulose to the kneaded mixture. The process provides inorganic molds with... | 08/20/2002 |
| 5691257 | Low density cellulated body and method A cellulated, inorganic body, and a method of producing the body, the body having a very low bulk density and being resistant to aqueous and chemical attack, the cells being gas- or vacuum-filled, predominantly closed, and dispersed in a crystalline matri... | 11/25/1997 |
| 5582231 | Sand mold member and method A foundry mold member made from a plurality of sand particles bound together with a binder which is concentrated at the contact points between contiguous sand particles and consists essentially of gelatins having a Bloom rating less than about 175 Bloom g... | 12/10/1996 |
| 5320157 | Expendable core for casting processes A method is provided for forming a sand core which is suitable for use in casting processes, and in particular squeeze casting processes, to form internal features and intricate external features of a cast article. The core forming method involves the use... | 06/14/1994 |
| 4705570 | Method of manufacturing a bonded particulate article by reacting a polyol and a meterocyclic compound Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol selected from the group comprising a saccharide, a saccharide polymer, an... | 11/10/1987 |
| 4689081 | Investment casting method and stucco therefor A special stucco for use in the construction of shell molds for investment casting is disclosed. The stucco particles comprise refractory powder held together by a binder which volatilizes or otherwise disintegrates at firing temperatures. Since the parti... | 08/25/1987 |
| 4604141 | Slip casting mold A slip casting mold consisting essentially of a gypsum mold, which contains a water-insoluble organic material, more particularly, a water-insoluble vegetable material such as cellulose, or which further contains glue in addition to the water-insoluble or... | 08/05/1986 |
| 4265665 | Foundry molds containing glassy metal alloy filaments Foundry sand molds and cores are provided which incorporate glassy metal reinforcing filaments. Molds prepared from the sand composition of this invention provide greater strength before and during metal casting. As the casting solidifies, the temperature... | 05/05/1981 |
| 4089691 | Method for manufacturing foundry cores A method for manufacturing a foundry core comprising mixing sand and a binder system containing a saccharide-containing material, glyoxal and an alkali halide.... | 05/16/1978 |
