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| Number | Title | Issue Date |
| 7353756 | Lead free reduced ricochet limited penetration projectile A frangible projectile with a specific gravity similar to a lead projectile. The projectile comprises 34-94%, by weight, binder. The binder comprises poly ether block amide resin. The projectile further comprises 6-66%, by weight, ballast. The ballast comprises at l... | 04/08/2008 |
| 7273527 | Production method for powdered core The present invention provides a production method for a powdered core, including steps of preparing a mixture including a soft magnetic powder and a resin powder to obtain a mixture, compacting the mixture into a predetermined shape to obtain a green compact and he... | 09/25/2007 |
| 7211158 | Production method for powdered core The present invention provides a production method for a powdered core, including steps of preparing a mixture including a soft magnetic powder and a resin powder to obtain a mixture, compacting the mixture into a predetermined shape to obtain a green compact and he... | 05/01/2007 |
| 7175794 | Method for manufacturing a pressed part from a soft magnetic composite material A method for manufacturing a pressed part from a soft magnetic composite material. A starting mixture is provided that includes an iron powder and an auxiliary pressing agent. The starting mixture is pressed to form a pressed part and annealed at temperatures betwee... | 02/13/2007 |
| 7148598 | Spoke permanent magnet rotors for electrical machines and methods of manufacturing same A rotor assembly for an electric motor includes a spoke permanent magnet rotor and a shaft connected thereto. The spoke permanent magnet rotor has an axis of rotation, permanent magnet material, and ferro-magnetic material. The permanent magnet material extends outw... | 12/12/2006 |
| 7029769 | Insulation film, powder for magnetic core and powder magnetic core and processes for producing the same An insulation film whose requisite constituent elements are first elements and a second element. The first elements include B, P, O and Fe. The second element can generate cations whose hexa-coordinated ion radius, defined by Shannon, R. D., is 0.073 nm or more, and... | 04/18/2006 |
| 6989062 | Heat treatment of iron-based components The present invention concerns a method of improving the properties of powder metallurgically produced SMC compacted body consisting of a soft magnetic material of insulated powder particles and a lubricant, to a stress relieving heat treatment in a furnace until th... | 01/24/2006 |
| 6869566 | Method of fabricating metallic glasses in bulk forms The method of the present invention incorporates an amorphous metal powder coated with a ductile crystalline metal or alloy. The coated powder is consolidated to form a dense compact of isolated or continuous amorphous metal particles within a continuous ductile met... | 03/22/2005 |
| 6689183 | Ferrite powder coating insulating layer for molding a powder metal core A composition of metal powder for powder metallurgy applications comprising an iron-based powder metal admixed with a minority fraction of a ferrite powder having a lesser particle-size distribution. The ferrite particles are associated with an exterior s... | 02/10/2004 |
| 6620376 | Soft magnetic material and method for manufacturing it A soft magnetic material, and a method for manufacturing it, which is suitable, e.g., for use in solenoid valves is described. The individual powder particles of a metallic powdery initial component are equipped superficially at least largely with a high-... | 09/16/2003 |
| 6544352 | Method for the compaction of soft magnetic powder Disclosed is a method for the compaction of a soft magnetic powder capable of manufacturing a green compact which has attained high density and high strength, is excellent in mechanical properties and magnetic properties, and does not cause a reduction in... | 04/08/2003 |
| 6503445 | Iron-based powder composition for powder metallurgy having higher flowability and higher compactibility and process for production thereof A process for producing an iron-based powder composition for powder metallurgy having excellent flowability at room temperature and a warm compaction temperature, having improved compactibility enabling lowering ejection force in compaction, and to provid... | 01/07/2003 |
| 6451082 | Iron-based powder mixture for powder metallurgy, process for producing the same, and method of forming a molding from the same An iron-based powder composition is provided that is greatly flowable and compactible and less dependent on temperature with respect to flowability and compactibility at room temperature or during warming. The iron-based powder composition includes an iro... | 09/17/2002 |
| 6451251 | Method for manufacturing billet using aqueous salt solutions Disclosed is a method for manufacturing a billet using aqueous salt solutions. The method for manufacturing a billet using aqueous salt solutions, comprising the following steps of: infiltrating aqueous salt solutions into metal powders or cut metal wires... | 09/17/2002 |
| 6409796 | Method for production of tantalum and niobium powders with highly developed surface A method of treatment a metal powder to increase its surface area is presented. The metal powder to be treated is selected from a group consisting of tantalum, niobium and mixtures thereof. The method utilizes mechanical alloying applied to an initial sel... | 06/25/2002 |
| 6375894 | Acid assisted cold welding and intermetallic formation and dental applications thereof A metallic composite solid, containing alloys and/or intermetallics, is formed by compacting at moderate pressure a mixture of powder particles, foils or sheets at a temperature close to room temperature, well below the melting temperature of the constitu... | 04/23/2002 |
| 6340397 | Method for making low core loss, well-bonded, soft magnetic parts A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic pow... | 01/22/2002 |
| 6224990 | Binder systems for powder metallurgy compacts The application of polypropylene carbonate in solution to valve metal powders having relatively high surface area, then evaporating the solvent under static (non-agitating) conditions. The static drying of the coated valve metal powder produces a semi-sol... | 05/01/2001 |
| 6174494 | Non-lead, environmentally safe projectiles and explosives containers A solid object having controlled frangibility, such as a bullet or a container for explosives, is made by combining two different metals in proportions calculated to achieve a desired density, without using lead. A wetting material is deposited on the bas... | 01/16/2001 |
| 6156264 | Electromagnetic compacting of powder metal for ignition core application Disclosed is a process for producing an AC cylindrical electromagnetic ignition coil core (28) comprising: filling a cylindrical holding container (20) with powdered metal; placing the filled container into an electromagnetic field and compacting, in the radia... | 12/05/2000 |
| 6150048 | Metallic interconnection material for solid oxide fuel cell and method for preparing the same Disclosed are a metallic interconnection material for solid oxide fuel cells and a preparation method thereof. The metallic interconnection material has two fine microstructural phases in which 5-25% by volume of LaCrO3 is dispersed at the grai... | 11/21/2000 |
| 6139600 | Method of making iron-based powder composition for powder metallurgy excellent in flow ability and compactibility An iron-based powder composition is produces in accordance with a method comprising the steps of: adding to iron-based and alloying powders, for a primary mixing, a surface treatment agent, and in addition, for a secondary mixing, a fatty acid amide and a... | 10/31/2000 |
| 6136265 | Powder metallurgy method and articles formed thereby A method of forming a coating on metal particles that can be used to produce powder metallurgy articles, including those for electromagnetic and structural applications. The method is generally a solution-blending process that employs a coating solution t... | 10/24/2000 |
| 6045748 | Method for molding an article from powder A method for forming molded articles in any shape from ceramic, glass, or metal powders which comprises: preparing a slurry by dispersing more than one powder selected from a group consisting of ceramic, glass, and metal materials in a dispersing medium u... | 04/04/2000 |
| 6042781 | Ambient temperature method for increasing the green strength of parts A process for consolidating powder, particulates, foils or sheets of metal coated composites, elemental metallic or metallic alloy or intermetallic compounds into net shapes having increased green strength at or near ambient temperature comprises treating... | 03/28/2000 |
| 6024915 | Coated metal particles, a metal-base sinter and a process for producing same A process for producing a metal-base sinter, comprising sintering coated metal particles wherein the particles are prepared for sintering by the steps of: dispersing a powder of metal core particles in a gaseous atmosphere to form a mixture of a gas and p... | 02/15/2000 |
| 6001289 | Acid assisted cold welding and intermetallic formation A metallic composite solid, containing alloys and/or intermetallics, is formed by compacting at moderate pressure a mixture of powder particles, foils or sheets at a temperature close to room temperature, well below the melting temperature of the constitu... | 12/14/1999 |
| 5977033 | Lubricated aluminum powder agglomerates having improved flowability The present invention relates to particle agglomeration of aluminum powder using a lubricating binder. The resulting powder has improved flowability and can be shaped easily. The aluminum particles are admixed with a lubricant, e.g. polyethylene, and are ... | 11/02/1999 |
| 5963776 | Non-lead environmentally safe projectiles and method of making same A projectile, such as a bullet, is made by combining two different metals in proportions calculated to achieve a desired density, without using lead. A base constituent, made of a material having density greater than lead, is combined with a binder consti... | 10/05/1999 |
| 5908588 | Incipient flocculation molding of particulate inorganic materials A process of molding inorganic materials into desired shapes comprises mixing the material with a dispersant, milling, molding the mixture, drying the mixture and sintering.... | 06/01/1999 |
| 5885653 | Method of making metal composite materials One or more metal salts of at least one of Co, Ni and/or Fe is dissolved/suspended in water. To the solution/suspension is added at least one hard constituent powder to form a slurry. The solvent is evaporated, preferably by spray drying, and the resultan... | 03/23/1999 |
| 5716552 | Thick-film conductor compostions comprising silver or palladium particles coated with alumina or zirconia A thick-film conductor paste and thick-film conductors formed therefrom. The conductor paste is composed of metallic particles coated with a ceramic layer that reduces leaching and solder diffusion into the conductor, thereby improving the reliability of ... | 02/10/1998 |
| 5628945 | Multicomponent powder mixing process and compositions produced thereby A method for controlling chemical distribution of substances in a solid state (and products produced thereby), the method comprising the steps of mixing particles of a first powder and a triggerable granule facilitator to form first microcapsules, the fir... | 05/13/1997 |
| 5591373 | Composite iron material A mass of ferromagnetic particles moldable into stable, high strength, magnetic cores useful in thermally and chemically hostile environments comprising an iron core and a continuous layer of polyetherimide, polyethersulfone or polyamideimide spray coated... | 01/07/1997 |
| 5561829 | Method of producing structural metal matrix composite products from a blend of powders A method of preparing a metal alloy product from a powder blend. The method comprising: (a) cold pressing a blend to form a compact, the metal blend comprising a metal powder phase and at least one reinforcement phase having a hardness greater than the me... | 10/01/1996 |
| 5538684 | Powder metallurgy lubricant composition and methods for using same The present invention provides lubricant compositions for the powder metallurgical field. The lubricant compositions contain a solid phase lubricant such as graphite, molybdenum disulfide, and polytetrafluoroethylene in combination with a liquid phase lub... | 07/23/1996 |
| 5529747 | Formable composite magnetic flux concentrator and method of making the concentrator A formable composite magnetic flux concentrator material is composed of about 65% to 90% ferromagnetic material, such as iron powder, and about 35% to 10% binder, the binder being a mixture of an epoxy and one or more catalysts. The concentrator material ... | 06/25/1996 |
| 5506061 | Method for the preparation of metal matrix composite materials A method for preparing deagglomerated fibres and/or particles and for providing the fibres and/or particles with a substantially uniform protective coating, the fibres and/or particles being of a material selected from the group consisting of carbides oxi... | 04/09/1996 |
| 5505903 | Method of producing cold-moulded iron-containing briquettes In the manufacture of cold-moulded briquettes from iron-containing waste metallurgical material mixed with a binder, in order to obtain high-strength briquettes and almost complete reducibility, magnetite waste metallurgical material such as scale (1) is ... | 04/09/1996 |
| 5468446 | Pelletizing or granulating process The pelletisation or granulation of a material or mixture of materials the or at least one of which is reactive in a liquid to produce a gas is improved by treating the reactive material prior to final compaction to form a coating thereon of a substance w... | 11/21/1995 |
