Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7770629 | Moulding mixture for producing casting moulds for metalworking The invention relates to a moulding mixture for producing casting moulds for metalworking, a process for producing casting moulds, casting moulds obtained by the process and also their use. To produce the casting moulds, a refractory mould raw material and a binder ... | 08/10/2010 |
| 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 |
| 7204880 | Rapid setting cement A cement formula including mono potassium phosphate, mono ammonium phosphate, magnesia, and fly ash exhibits rapid setting and high strength characteristics. ... | 04/17/2007 |
| 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 |
| 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 |
| 7121318 | Lost pattern mold removal casting method and apparatus A method and apparatus for the lost pattern casting of metals is disclosed. In the method, a pattern is formed from a material and a mold is formed around at least a portion of the pattern. The mold includes a particulate material and a binder. The pattern is remove... | 10/17/2006 |
| 7000680 | Casting mold and method for manufacturing the same A casting mold which is molded by heating mulled sand including a mixture of refractory molding sand particles, an inorganic water soluble binder and water, wherein the inorganic water soluble binder is made of a combination of a sulfate compound such as magnesium s... | 02/21/2006 |
| 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 |
| 6883587 | Polyisocyanate compositions and their use This invention relates to polyisocyanate compositions comprising (a) polyisocyanate, and (b) a monomeric carbodiimide. The polyisocyanate compositions are particularly useful in phenolic urethane foundry binder systems. The invention also relates to foundry mixes pr... | 04/26/2005 |
| 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 |
| 6669770 | Facing sand composition and method of incorporation in a mold A sand casting facing composition comprises a dry mixture of about 77% fine sand, 5% binder, 6% green system sand and 12% burned system sand. The fine sand is mulled with 5.8% wt/wt oil per total dry mixture and catalyst at about 0.5% wt/wt. Preferably, f... | 12/30/2003 |
| 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 |
| 6378599 | Foundry binder A foundry binder is obtainable by surface modification of a) colloidal inorganic particles with b) one or more silanes of the general formula (I) Rx --Si--A4-x (I) where the radicals A are identical or different and are hydroxyl groups or gro... | 04/30/2002 |
| 6372032 | Foundry exothermic assembly A foundry exothermic assembly is formed by mixing hollow glass microspheres and an inorganic or organic binder with matrix forming constituents including an oxidizable metal, an oxidizing agent, a foundry refractory aggregate and, optionally, a pro-oxidan... | 04/16/2002 |
| 6371194 | Method for producing core preforms and recycling core sand for a foundry The invention relates to a method for the production of core preforms for foundry in which a) a mixture of inorganic, refractory foundry sand and a water glass-based inorganic binder is produced, b) the mixture is poured into a heated core box c) the wate... | 04/16/2002 |
| 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 |
| 5884688 | Methods for fabricating shapes by use of organometallic ceramic precursor binders This invention relates to the discovery of organometallic ceramic precursor binders used to fabricate shaped bodies by different techniques. Exemplary shape making techniques which utilize hardenable, liquid, organometallic, ceramic precursor binders incl... | 03/23/1999 |
| 5687788 | Implantable articles with as-cast macrotextured surface regions and method of manufacturing the same An implantable article having on at least a portion of its exterior surface an integral, as-cast macrotextured surface with macropores having undercut edge profiles. A complex macrotextured surface is provided by forming a casting mold so that the mold ha... | 11/18/1997 |
| 5643675 | Addition for promotion of bench life extension in a hot box binder system The invention relates to the use of tripotassium citrate monohydrate and other alkali metal salts of polybasic acid as bench life extenders in heat curable hot box foundry mixtures comprising sand, thermosetting binder resin, and a latent acid catalyst co... | 07/01/1997 |
| 5641015 | Water dispersible molds A water-dispersible mold for making a casting comprises a water-insoluble particulate material, such as foundry sand, a binder which includes polyphosphate chains and/or borate ions, and at least one fine particulate refractory material such as one select... | 06/24/1997 |
| 5582232 | Inorganic foundry binder systems and their uses This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and c... | 12/10/1996 |
| 5390727 | Inorganic poundry binder systems and their uses This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate Part A and Part B components: (A) an aqueous solution of specified phosphoric acids, and (B) a mixture comprising (1) an iron oxide ... | 02/21/1995 |
| 5333673 | Metal casting in a sand mold having a sodium bentonite clay binder mixture Molten metal is cast into a mold cavity formed of sand held in a predetermined mold configuration by a binder comprising a plurality of sodium bentonite clays. A blend of two or more sodium bentonite clays obtained from different areas as a foundry sand b... | 08/02/1994 |
| 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 |
| 5310420 | Refractory containing investment material and method of making An improved refractory investment material for use in making refractory molds is provided. The material comprises an investment powder including a binder, a refractory selected from calcined mullite and pyrophyllite, additives for controlling setting and ... | 05/10/1994 |
| 5158130 | Method for preparation of moulds and cores used in the casting of metals The invention concerns a method for the preparation of moulds and cores used in the casting of metals. In the method the moulds and cores are prepared out of a granular moulding material as well as out of a binder agent that binds the moulding-material gr... | 10/27/1992 |
| 4867228 | Additive for green moulding sands An additive for green moulding sands for use in foundry industry comprising a "stabilized" and polyhydroxylated carbohydrate, in particular as aqueous solution, and preferably consisting of a monosaccharidic and/or oligosaccharidic derivatives where any o... | 09/19/1989 |
| 4840219 | Mixture and method for preparing casting cores and cores prepared thereby Casting cores are fabricated from a mixture comprising a molten salt having dispersed therein a particulate material which includes a first refractory material having a mesh size of 60-120 and a second refractory material having a mesh size of at least 20... | 06/20/1989 |
| 4763720 | Microwave process for the fabrication of cores for use in foundry casting For the fabrication of a disintegratable sand core, refractory particles such as silica sand are mixed with two binders, one consisting of an inorganic substance such as a silicate and the other consisting of a starch, and, preferably, with water. The two... | 08/16/1988 |
| 4678020 | Curing foundry moulds and cores Foundry moulds and, more especially, cores are made by the use of a binder comprising ammonium polyacrylate and zinc oxide or a metal salt to form a complex ammonium metal polyacrylate which is mixed with the sand and after the core or mould has been form... | 07/07/1987 |
| 4664172 | Method for production of investment shell mold for grain-oriented casting of super alloy An investment shell mold of a texture having a stucco material dispersed in mullite useful for grain-oriented casting of a Ni-base super alloy is produced by preparing a slurry having alumina powder or a mixture of alumina powder with at least one ceramic... | 05/12/1987 |
| 4605052 | Curing binders for foundry moulds and cores A foundry binder of the water-soluble alkali metal polyacrylate type having additives that include lime is cured by the use of the vapour of a low-boiling point organic ester having not more than three carbon atoms, primarily methyl formate, entrained in ... | 08/12/1986 |
| 4604142 | Investments for dental casting An investment material for dental casting comprises 100 parts by weight of a mixture of hemihydrate gypsum, quartz and/or cristobalite and 2 to 5 parts by weight of natural starch optionally with 0.1 to 1.0 part by weight of soluble starch.... | 08/05/1986 |
| 4602667 | Method for making investment casting 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 liq... | 07/29/1986 |
| 4591385 | Die material and method of using same A die material particularly suitable for the making of castings or the like, comprises 50 to 80 parts of magnesium oxide, 10-40 parts of alumina, 2 to 6 parts of monohydrated ammonium phosphate, and 1 to 4 parts of dihydrated ammonium phosphate. The dry b... | 05/27/1986 |
| 4588013 | Binders for foundry cores and moulds A binder for a foundry core or mould consists of an alkali metal salt of a polybasic organic acid or of a polymerized monobasic organic acid, for example sodium polyacrylate, an alkaline earth metal hydroxide such as calcium hydroxide, one or more polyval... | 05/13/1986 |
| 4552202 | Alkali metal silicate solutions and method of forming foundry products using the solutions Aqueous alkali metal silicate solutions are made by dissolving an alkali silica powder that includes insoluble impurities and putting the impurities into stable suspension with a suspending agent such as a cellulose derivative. When used as a foundry bind... | 11/12/1985 |
| 4541869 | Process for forming foundry components Aqueous alkali metal silicate bonding compositions having a molar ratio of SiO2 :Me2 O of 2.4:1 to 3.4:1, wherein Me is sodium and/or potassium, a solids content of about 35 to 50 percent by weight, and containing triethanolamine. Th... | 09/17/1985 |
