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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7294172 | Helium recovery A gas recovery system comprising a source of gas having a preselected concentration of a desired component (9), at least one application (1) that adds impurities to said gas, and at least one an adsorption system (6) that purifies said gas to pr... | 11/13/2007 |
| 7077920 | Method of making coated steel part with regions of different ductility A workpiece having regions of different ductility is made by first coating opposite faces of a flat sheet-metal workpiece of low ductility and then stripping the coating from the faces in one region of the workpiece while leaving the coating on the faces in another ... | 07/18/2006 |
| 7067087 | System and process for gas recovery This invention is directed to a three-stage process for recovering and purifying a helium gas, and a system for using the three-stage process. The steps comprise a) introducing a gas from a cold spray forming chamber to a particulate removing apparatus to form a par... | 06/27/2006 |
| 7063274 | Cleaning nozzle A nozzle for use in cleaning applications is provided. The nozzle has a rotatably supported nozzle body, on which one or more nozzle orifices are provided. The nozzle housing itself serves as the rotary drive, which is carried along by a fluid led into the housing w... | 06/20/2006 |
| 6913658 | Process for the hot-dip galvanizing of metal strip made of high-strength steel A process is disclosed for the continuous thermochemical treatment of metal strip. It is useful with steel strip, of the oxidation-reduction type, in which the strip moves through a furnace in a protective atmosphere. The strip passes through at least one partial or... | 07/05/2005 |
| 6837948 | Process of production of compressor shoe A process of production of a compressor shoe superior in durability and reduced in manufacturing cost, wherein a process of quenching the shoe is performed in a vacuum, inert gas, or modified gas so as to prevent oxidation of the chrome and manganese of the surface ... | 01/04/2005 |
| 6780257 | Iron component and a manufacturing method therefor A base plate of a stainless-steel body material formed by pressing is polished and cleared of burrs by means of an abrasive material that consists mainly of Fe2O3 in a polishing process. The polished base plate is heated to a heat treatment tem... | 08/24/2004 |
| 6764528 | Process for producing high-nitrogen ultralow-carbon steel A method of producing a high nitrogen, ultra low carbon steel suitable to rolling material for use in cold rolled steel sheets having excellent age hardening property by an age hardening treatment after forming by working, with no defects in slabs or steel sheets, r... | 07/20/2004 |
| 6764645 | Steel for machine structural use having good machinability and chip-breakability Disclosed is a steel for machine structural use having good machinability and chip-breakability as well as a method of producing the steel. The steel consists essentially of, by wt. %, C: 0.05-0.8%, Si: 0.01-2.0%, Mn: 0.1-3.5%, S: 0.01-0.2%, Al: 0.001-0.020%, Ca: 0.... | 07/20/2004 |
| 6627007 | Surface modified stainless steel A method has been developed for surface modifications of high temperature resistant alloys, such as FeCrAl alloys, in order to increase their resistance to corrosion at high temperatures. Coating it with a Ca-containing compound before heat-treating build... | 09/30/2003 |
| 6624556 | Fe-Ni alloy used for a shadow mask and a method for producing a shadow mask An Fe-Ni alloy having improved softening property is provided consisting of from 34 to 38% of Ni, not more than 0.5% of Mn, from 0 to 0.02% of soluble Al, from 0.005 to 0.0100% of N, the balance being Fe and unavoidable impurities. A smaller of the first ... | 09/23/2003 |
| 6346337 | Bulk amorphous metal magnetic component A bulk amorphous metal magnetic component has a plurality of layers of amorphous metal strips laminated together to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuat... | 02/12/2002 |
| 6290790 | Method for reducing the resistivity of the corrosion-induced oxide layer, and applications A method for reducing the electrical resistance caused by a corrosion oxide coating at the current-carrying transition of a chromium steel component includes annealing the chromium steel component a temperature of at least 950° C. and removing any oxide ... | 09/18/2001 |
| 6274200 | Method for preparing pre-coated ferrous-alloy components and components prepared thereby A ferrous-alloy aircraft structural component such as a fastener is prepared by providing a ferrous-alloy component precursor that is not in its final heat-treated state, and coating with an aluminum-containing, curable organic coating material having a n... | 08/14/2001 |
| 6120578 | Method of producing cluster-free Al-killed steel An alloy of Al and two or more of Ca, Mg and REM is added as a deoxidizing agent to molten steel, and the amount of Al2 O3 in the resulting inclusion is adjusted to a range of 30-85 wt % to obtain an alumina cluster-free Al-killed st... | 09/19/2000 |
| 6077370 | Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures Monolithic metal oxide structures, and processes for making such structures, are disclosed. The structures are obtained by heating a metal-containing structure having a plurality of surfaces in close proximity to one another in an oxidative atmosphere at ... | 06/20/2000 |
| 6024809 | Fe-Ni alloy materials for electronic parts Fe--Ni alloy with improved etch factors for electronic parts are provided which are characterized by the composition consisting of, all by weight, 30-55% Ni, 0.8% or less Mn, 0.0030-0.0100% N, or 0.02% less Al, and the balance Fe and unavoidable impuritie... | 02/15/2000 |
| 5938866 | Method and an apparatus for the treatment of components by a gas mixture An apparatus for the treatment of components by means of a gas mixture, comprising mainly a first light gas and minor amounts of a second gas being heavier than the first gas, has a treatment chamber (10) in which the treatment occurs and a concentration,... | 08/17/1999 |
| 5882445 | Method of making semi-finished metal products A method for producing metallic semifinished products such as strip or wire rom metallic work materials which have a high melting point and are difficult to shape, comprising the steps of a) first, alloying at least one element for lowering the melting poi... | 03/16/1999 |
| 5882803 | High-strength hot dip galvannealed steel sheets having excellent plating properties and method of producing the same The invention is a high-strength hot dip galvannealed steel sheet having excellent press formability and plating properties by utilizing Si as a strengthening component, specifying an interrelation between Si and Mn and further specifying an alloying rati... | 03/16/1999 |
| 5879479 | Method of making ultra low-carbon steel Adding aluminum and/or silica to molten steel after decarburization containing about 0.005 percent by weight or less of carbon and about 1.0 percent by weight or less of manganese to form a mildly deoxidized molten steel; adding titanium to the mildly deo... | 03/09/1999 |
| 5830290 | Method for the manufacture of a spring band clip The subject invention provides a method for manufacturing a spring band clip, wherein an alloyed steel is shaped, annealed, levelled into a narrow band, then shaped by stamping and bending into a non-machined clip, and the surface of the non-machined clip... | 11/03/1998 |
| 5725696 | Process and plant for production of raw stainless steel castings The invention refers to a process for production of raw stainless steel castings, in particular for stainless steel strip, covering rolling and annealing of cast material if required, as well as de-scaling, in particular by pickling in aqueous media, and ... | 03/10/1998 |
| 5626689 | Method of generating heat using catalytic material This invention relates to a catalytic fuel composition capable of reducing pollutants in the combustion gasses generated upon combustion of the same. A catalytic material is combined with a liquid, petroleum-based fuel, mixed and solid particles are separ... | 05/06/1997 |
| 5167735 | Process for the annealing of steel annealing material For the annealing of steel in continuously operating units, the formation of so-called white dust is almost completely eliminated by subjecting the steel to a deoxidizing pretreatment before the annealing sequence so as to at least largely remove the oxyg... | 12/01/1992 |
| 5158625 | Process and apparatus for heat treating articles while hardening in gaseous medium Process for heat treating articles by hardening them in a recirculating gas medium which is in contact with the treated articles, the hardening gas being cooled by means of a heat exchanger, of the type in which helium is used as hardening gas, and is sto... | 10/27/1992 |
| 5022933 | Process for annealing boron-containing steels and product thereof Boron-containing steel products having boron contents of up to 200 ppm are obtained by an annealing process in the temperature range of between 850° and 1050° C. The characterizing feature of the invention is that the products are annealed in the state ... | 06/11/1991 |
| 4464430 | Metal diffusion Very good masking of pack diffusion aluminizing on any metal to keep portions from being diffusion coated, is effected by localized coating the lowest layer of which is depletion-reducing masking powder that can have same composition as substrates, mixed ... | 08/07/1984 |
| 4457788 | Particulate medium for fluidized bed operations This invention relates to non-abrasive, lubricative, particulate solids, e.g. graphites, lime, calcium oxides, zinc oxides and compounds of higher saturated fatty acids, particularly, stearate salts, and their methods of use as fluidized bed media for pre... | 07/03/1984 |
| 4273810 | Method for preventing sintering in forging blocks Preventing work pieces of iron or iron alloys in the form of a line of blocks which are pushed through an induction coil and heated to a forging temperature from sticking together. The surfaces of blocks which touch are subjected to an elevated temperatur... | 06/16/1981 |
| 4249961 | High strength steel for diffusion chromizing A high strength steel especially suitable for diffusion chromizing and a method for making same is described. The high strength steel comprises a carbon content of 0.01 to 0.08%, 0.1 to 1.0% silicon, 0.5 to 2.2% manganese, 2.0 to 10% chromium, 0.01 to 0.4... | 02/10/1981 |
| 4227945 | Method for preventing decarburization of steel materials A method for preventing decarburization of a steel material comprising applying a mixture of SiC powder and metallic Al powder on the steel material, further applying an oxidation inhibitor thereon, and heating thus coated steel material, so as to give 30... | 10/14/1980 |
| 4036670 | Tool steel Reduced decarburization production of steel by providing a metallized, e.g., aluminized, adherent removable protective surface coating on the exterior of the steel workpiece prior to heating for hot-working and/or annealing, e.g., of the semi-finished bil... | 07/19/1977 |
| 3977915 | Method of heat treating metal parts Disclosed is a method for heat treating nonferrous metal parts. These parts are suspended in a settable ceramic slurry. The combination is formed into a solid mass by setting of a gelling binder contained therein. The set mass is then aged in an envelopin... | 08/31/1976 |
| 3969157 | Method of providing decarbonization protection for metallic surfaces An improved technique is described for effecting decarbonization protection for the surfaces of ferrous metals during heat treatment in an oxidation atmosphere. The surface to be protected is coated, prior to the heat treating step, with a paste-like subs... | 07/13/1976 |
