Famous Patents
The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8122941 | Aluminum alloy for vehicle cylinder liner and method of manufacturing vehicle cylinder liner using the same The present invention is directed to an aluminum alloy including aluminum as a basic component, silicon, copper, magnesium, iron, manganese, zinc, nickel and the like in a predetermined composition ratio, and a method of manufacturing of a vehicle cylinder liner hav... | 02/28/2012 |
| 7302996 | Feed device for feeding molten metal into a crystallizer A drop feeder (1) for feeding molten metal into an ingot mould (15) comprises a distributor (3) having a substantially prismatic shape, with one of the faces open, in which the inside of the distributor comprises three tanks (4, 5, 6), se... | 12/04/2007 |
| 7299856 | Casting steel strip with low surface roughness and low porosity A thin steel strip with low surface roughness and low porosity produced by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip p... | 11/27/2007 |
| 7278464 | Control pin A control pin for controlling the flow of liquid metal in a casting process includes an elongate body member, the body member being made at least partially of a composite ceramic material that includes a fibrous reinforcing material embedded within a ceramic matrix,... | 10/09/2007 |
| 7177384 | Aluminum composite material, manufacturing method therefor, and basket and cask using the same A basket has a lattice-like section for accommodating individual used nuclear fuel in predetermined positions in a cask. The basket is made from aluminum composite material having good neutron absorption ability, excellent mechanical property and workability. The al... | 02/13/2007 |
| 7125612 | Casting of non-ferrous metals A method of continuous casting non-ferrous alloys which includes delivering molten non-ferrous alloy to a casting apparatus. The casting apparatus rapidly cools at least a portion of the non-ferrous alloy at a rate of at least about 100° C. thereby solidifying an o... | 10/24/2006 |
| 7077186 | Horizontal continuous casting of metals A mold for horizontal casting of molten metal comprising a mold body forming an open-ended mold cavity having an inlet end and an outlet end. An annular permeable wall member is mounted in the mold body adjacent the inlet end of the mold cavity with an inner face th... | 07/18/2006 |
| 6973954 | Method for manufacture of gray cast iron for crankcases and cylinder heads A method of casting parts with gray iron includes the steps of providing molten gray iron metal with controlled carbon, silicon, phosphorous, sulfur, manganese and chromium content; alloying said molten gray iron metal, prior to pouring, with tin to a total tin cont... | 12/13/2005 |
| 6581674 | Method and device for homogenizing a molten metal film Disclosed is a method and apparatus for making a molten film of metal, steel, in particular a steel film, more uniform, by strip casting, in which the molten material which is applied to a revolving belt is to have a thickness and properties which are as ... | 06/24/2003 |
| 6557623 | Production method for continuous casting cast billet Molten steel is poured using an immersion nozzle and a direct current magnetic field zone is applied to a cast slab over the entire width in the thickness direction thereof at a predetermined distance below the molten metal level in a continuously-casting... | 05/06/2003 |
| 6516870 | Tundish fluxing process A process for continuously casting steel wherein liquid steel is teemed from a ladle through a shroud into the pour box section of a tundish and poured from the tundish through one or more outlets remote from the pour box, and wherein the surface of the s... | 02/11/2003 |
| 6412164 | Aluminum alloys having improved cast surface quality Aluminum alloy compositions are disclosed, which include small amounts of calcium that result in improved surface properties of the cast aluminum. The calcium, and up to 0.25% grain refiners, are added along with alkaline earth metals, transition metals a... | 07/02/2002 |
| 6316125 | Aluminum welding process and composition for use in same The invention provides a new and improved process and exothermic reaction mixture for producing molten weld metal. The molten weld metal is used in joining one metallic piece with at least one other metallic piece. The process and exothermic reaction mixt... | 11/13/2001 |
| 6217632 | Molten aluminum treatment A method of grain refining aluminum, the method comprising providing a molten aluminum body containing at least one of the metals selected from the group consisting of titanium, zirconium, vanadium, molybdenum, manganese, silicon, tungsten, tantalum, niob... | 04/17/2001 |
| 6171362 | Method for refining molten aluminum alloy and flux for refining molten aluminum alloy A method for refining molten Al alloy and a non-halogen based flux for refining molten Al alloy which make it possible to perform refining such as removal of gas and inclusions at a high reduction level, and are free from a problem that the flux remains i... | 01/09/2001 |
| 6125919 | Mold powder for continuous casting and method of continuous casting A mold powder for continuous steel casting, contains CaO, SiO2 and fluoride as the main components. The ratio by weight of CaO', represented by the following equation, to SiO2 is 0.9-2.8 and the CaF2 content is about 5-60 ... | 10/03/2000 |
| 6073679 | Casting steel strip Continuous casting of steel strip in twin-roll caster comprises casting rolls (16). Molten steel is delivered by a delivery system and comprising delivery nozzle (19b) to casting pool (30) supported above nip (10) between the casting rolls (16) which are ... | 06/13/2000 |
| 6044897 | Method of passivating commercial grades of aluminum alloys for use in hot chamber die casting A process for increasing the productivity of aluminum castings from a hot chamber die casting machine, as well as a process for increasing the working life of an injection chamber for use in a hot chamber aluminum die casting machine, both of which involv... | 04/04/2000 |
| 5935295 | Molten aluminum treatment A method of grain refining aluminum, the method comprising providing a molten aluminum body containing 1 to 3000 ppm titanium. A material reactive with the titanium is introduced preferably in gaseous form to the aluminum body. The material has a componen... | 08/10/1999 |
| 5887647 | Decreasing contamination of molten metal prior to solidification casting The invention provides continuously-cast product free of ambient atmosphere contaminants and free of nonmetal solid entrapment. Methods and apparatus are provided for flow of molten metal from ladle to tundish to mold machine, free of contact with ambient... | 03/30/1999 |
| 5609199 | Method of manufacturing steel containing Ca A method of manufacturing steel having Ca including the steps of adding Ca metal or alloy containing Ca to molten steel in a ladle that has been killed by adding a reducing agent, such as Al, to the molten steel in a predetermined quantity when or after t... | 03/11/1997 |
| 5588478 | Control of sticking in twin roll casting A high speed twin roll casting process is described in which molten metal is fed through a feeding nose into a convergent cavity formed between the walls of two rotating rolls with a meniscus of hot metal extending from the feeding nose tip in a casting z... | 12/31/1996 |
| 5578143 | Continuously cast slab of extremely low carbon steel with less surface defects in steel sheet-producing step; extremely low carbon sheet steel; and process for producing the same (Object) IF-based, continuously cast slab essentially freed from defects such as surface defects, difficult production and poor strength, etc. of the product that the IF-based sheet steels have; sheet steels and a process for producing the same are provid... | 11/26/1996 |
| 5577549 | Mold fluxes used in the continuous casting of steel A mold flux for the continuous casting of steel (including ultra low carbon steel) comprises refractory metal oxide, at least one fluxing agent, a binder, and expandable graphite in the amount of 0.3-1.0% by weight, the expandable graphite having a size l... | 11/26/1996 |
| 5538070 | Mould fluxes and their use in the continuous casting of steel A granular mould flux for use in the continuous casting of steel comprises refractory metal oxide, one or more fluxing agents, a binder and 0.1% to 3% by weight based on the weight of the flux of an expanding agent such as expandable perlite, expandable v... | 07/23/1996 |
| 5469911 | Method for improving surface quality of electromagnetically cast aluminum alloys and products therefrom A method for improving the surface quality of electromagnetically cast aluminum alloy ingot includes the addition of an effective amount of calcium prior to the ingot head of an ingot mold of an electromagnetic casting station. The addition of calcium is ... | 11/28/1995 |
| 5415220 | Direct chill casting of aluminum-lithium alloys under salt cover Casting aluminum-lithium based alloys under a salt cover involves forming a molten aluminum-lithium alloy, transferring the molten aluminum-lithium alloy to a casting station, and direct chill casting the aluminum-lithium alloy, wherein a protective molte... | 05/16/1995 |
| 5325911 | Method of producing Fe-Ni series alloys having improved effect for restraining streaks during etching A continuously cast slab of Fe-Ni series alloy comprising 30-50 wt % of Ni or further 0.001-0.03 wt % of B and the balance of Fe is controlled to an eqiaxial crystal ratio of 20% or 30% in accordance with the existence or nonexistence of B content in the ... | 07/05/1994 |
| 5299627 | Continuous casting method Steel is continuously cast while adding a mold powder using a vertical continuous casting mold having two pairs of mold surfaces which form a casting cavity, wherein the surface temperature of the mold is kept at 700° C. or more by forming the mold surfa... | 04/05/1994 |
| 5291939 | Start-up method and apparatus for continuous casting of metal into strip product A start-up method and apparatus for continuous casting of molten metal into a cast strip product includes initially casting a start-up alloy having sufficient strength, flexibility and casting surface release properties to achieve steady state casting con... | 03/08/1994 |
| 5263534 | Exothermic type mold additives for continuous casting An exothermic type mold additive for continuous casting comprising 20~90 wt % base raw materials, 0~10 wt % silicious raw materials containing more than 50 wt % SiO2 content, 0~20 wt % flux raw materials, 2~30 wt % of more than one kind selecte... | 11/23/1993 |
| 5242014 | Continuous casting method and apparatus for implementing same method In a continuous casting method, a melt surface condition within a mold is monitored for melt surface abnormalities such as boiling, lack of powder, and a condition of slag beard formation by using image sensors. Also, a condition of Deckel formation is de... | 09/07/1993 |
| 5234488 | Mold additive for continuous casting of steel A mold additive suitable for use in a mold for continuous casting of steel which comprises, as its base material, at least 50% by weight of synthetic calcium silicate which contains CaO and SiO2 in a total amount not less than 70% by weight, an... | 08/10/1993 |
| 5224534 | Method of producing refractory metal or alloy materials There is provided a method of producing a refractory metal or refractory metal-based alloy material by electron beam cold hearth remelting which comprises melting and casting a meltable electrode, characterized in that the electrode used for electron beam... | 07/06/1993 |
| 5179997 | Process for insulating molten steel during continuous casting The present invention provides a basic slag for use to protect molten steel in a tundish during continuous casting processes. The preferred slag of the present invention comprises a combination of CaO, MgO, Al2 O3, and TiO2. | 01/19/1993 |
| 5167272 | Adjusting a mold additive for continuous casting The present invention provides a mold additive for continuous casting which comprises adjusting an additive for stationary casting containing a flux base and, if necessary, a melting property regulator wherein it contains 4-30 wt % of MgO and 4-30 wt % of... | 12/01/1992 |
| 5158129 | Method and device for feeding a powdered or granular material into a continuous casting mold A system with a principal hopper having balances and discharge piping fitted with a valve and a flow sensor. The lower end of the piping extends into a secondary hopper which is connected to a pipe fitting powder to an ingot mold. The powder flows from th... | 10/27/1992 |
| 5143355 | Apparatus for manufacturing oxygen-free copper Method and apparatus for manufacturing an oxygen-free copper having an oxygen content of no greater than 3 ppm by weight are disclosed. In the method, a deoxidizing step is carried out by bringing a reducing gas containing hydrogen gas into contact with a... | 09/01/1992 |
| 5106412 | Method for providing steel with lowered hydrogen level after ladle treatment A method is provided for obtaining steel with lowered hydrogen levels after ladle treatment. The method includes covering molten steel in the ladle with a particulate mixture consisting essentially of calcium aluminate and dolomitic limestone. The mixture... | 04/21/1992 |
| 5058659 | Process for the production of steel having a varying chemical composition in the cross-section A process is provided for producing a steel bloom having a varying chemical composition in the cross-section. First, a flow of molten steel is directed into a casting chill form via a pouring pipe. Next, an alloy wire (e.g., sulphur foil, iron sulfite and... | 10/22/1991 |
