Quotables
"I think there is a world market for maybe five computers."
Thomas Watson, chairman of IBM ; 1943
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 |
| 7128949 | Surface pre-treatment method for pre-coated precipitation-hardenable stainless-steel ferrous-alloy components and components pre-coated thereby The present invention relates to the use of a pre-coating process, which utilizes metallic plating as a surface pre-treatment for a ferrous-alloy precursor prior to applying a corrosion-inhibiting coating to improve the overall corrosion protection of the pre-treate... | 10/31/2006 |
| 7053589 | Long-life vacuum system for energy storage flywheels The invention, intended primarily for use in a steel flywheel power source (30), provides a vacuum system and a method of maintaining a vacuum inside a flywheel chamber (32) for the life of the power source (30). The vacuum system combines the u... | 05/30/2006 |
| 7037383 | Process for producing a component from metal A process for producing a component of metal includes a) carrying out a heat treatment to harden the component, which ends with a heating process, especially with a tempering or microstructural transformation process, at a given temperature (TE); b) carry... | 05/02/2006 |
| 6974511 | Steel sheet with low aluminum content for containers The present invention provides a process for manufacturing a steel strip with low aluminum content, which includes: hot-rolling a steel strip including between 0.050 and 0.080% by weight of carbon, between 0.25 and 0.40% by weight ... | 12/13/2005 |
| 6964202 | Detection of rolling contact fatigue The onset of rolling contact fatigue in an object may be detected by measuring the residual stresses in the surface of the object, and monitoring changes in their magnitude or their direction. The values of residual stresses in the surface are those averaged over a ... | 11/15/2005 |
| 6869489 | Steel for high bearing pressure-resistant member, having high machinability, and high bearing pressure-resistant member using same steel A steel for a high bearing pressure-resistant member, having a high machinability. The steel is formed of a machine structural steel comprising carbon in an amount ranging from 0.15 to 0.25% by weight, silicon in an amount of not less than 0.4% by weight, nickel in ... | 03/22/2005 |
| 6800152 | Process for making iron-based casting alloy A process for making an iron-based casting alloy is performed by combining an iron-carbon-chromium system with primary carbides of vanadium, niobium, titanium, or combinations thereof without eutectic carbides of vanadium, niobium and titanium. Eutectic chromium car... | 10/05/2004 |
| 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 |
| 6702908 | Method of making a cylinder block with unlined piston bores A cylinder block for an axial piston pump or motor is formed from a steel material. The block includes a plurality of bores that each have an internal bore surface of a predefined final material surface finish. The bores are subjected to various machining... | 03/09/2004 |
| 6682613 | Process for making high strength micro-alloy steel A process for enhancing precipitation strengthening in steel and for making a high-strength micro-alloy steel, and a steel made from the process. The process includes the step of deforming the steel containing a suitable precipitate strengthening substanc... | 01/27/2004 |
| 6565991 | Composite doctor blade and its method of manufacture A composite doctor blade comprises a steel support band configured with a width and thickness suitable for mounting in a blade holder, with tensile and yield strengths suitable for a selected doctoring application. A wear resistant strip of high speed ste... | 05/20/2003 |
| 6537397 | Process for producing Fe-based member having high young's modulus, and Fe-based member having high young's modulus and high toughness In producing an Fe-based member, an Fe-based material comprising 0.6% by weightࣘcarbon (C)ࣘ1.0% by weight silicon (Si) | 03/25/2003 |
| 6478898 | Method of producing tool steels A method of producing a tool steel comprises quenching a steel containing, by mass percent, C: 0.25 to 0.60%, Si: 0.10 to 1.20%, Mn: 0.20 to 1.50%, Ni: 0.50 to 2.00%, Cr: 1.00 to 4.20%, Mo: 0.30 to 2.00%, V: 0.10 to 1.00% and Al: 0.005 to 0.10%, in order ... | 11/12/2002 |
| 6478901 | Aluminum-killed low-carbon steel sheet for containers and method for its preparation A process for manufacturing an aluminum-killed low-carbon steel strip by supplying a hot-rolled steel strip having by weight from 0.022 to 0.035% of carbon, from 0.15 to 0.25% of manganese, from 0.040 to 0.70% of aluminum, from 0.0035 to 0.0060% of nitrog... | 11/12/2002 |
| 6423427 | Composite doctor blade and its method of manufacture A composite doctor blade comprises a steel support band configured with a width and thickness suitable for mounting in a blade holder, with tensile and yield strengths suitable for a selected doctoring application. A wear resistant strip of high speed ste... | 07/23/2002 |
| 6420054 | Masking device for a color cathode-ray display tube with a flat screen, of the type comprising a support frame for a tensioned shadowmask, and tensioned shadowmask Masking device for a color cathode-ray display tube with a flat scree, of the type comprising a support frame for a tensioned shadowmask and a tensioned shadowmask mounted on the support frame so as to undergo tensioning at room temperature, in which devi... | 07/16/2002 |
| 6248186 | Ball-and-roller bearing and method of manufacturing the same A ball-and-roller bearing is disclosed having an inner ring, an outer ring arranged on the axis of the inner ring and rotating around the co-axis relative to the inner ring, and a rolling body interposed between the inner ring and the outer ring and rolli... | 06/19/2001 |
| 6187118 | Method for heat-treating steel work pieces A method of heat-treating a work piece of high-alloy steel by hardening involves relatively briefly annealing the work piece before hardening, followed by cooling the work piece. The brief annealing that is performed before the actual hardening and the en... | 02/13/2001 |
| 6136110 | Ferritic heat-resistant steel having excellent high temperature strength and process for producing the same This invention provides a ferritic heat-resistant steel suitable for a pressure-resistant member to be used at a temperature of 400 to 550° C. The ferritic heat-resistant steel having an excellent high temperature strength contains, in terms of wt %, 0.0... | 10/24/2000 |
| 6063215 | Method of manufacturing casting belts for use in the casting of metals A belt for use in the casting of metals and a method for its manufacture in which a metal belt is first subjected to heat treatment, quenching and tempering to improve its strength and decrease its stretchability. Then the belt is treated to introduce sur... | 05/16/2000 |
| 6024916 | Cast cold tool and method for producing the same A cast cold tool is obtained through the steps of forming a casting by founding a molten steel consisting by weight percentage of 0.5 to 0.8% of C, not more than 1.0% of Si, 0.25 to 1.50% of Mn, 4.0 to 8.0% of Cr, 1.0 to 5.0% of Mo, one or both of 0.2 to ... | 02/15/2000 |
| 5759308 | Method of precipitation hardening a metal alloy A precipitation hardened metallic alloy is provided in which the strengthening is based on the precipitation of particles. The strengthening particles have a quasicrystalline structure, said structure being essentially maintained at aging times up to 1000... | 06/02/1998 |
| 5733388 | Steel composition for bearings and method of producing the same Bearing steel materials that are superior in cold workability, machinability, hardenability and rolling contact fatigue life are provided. During the processing of steel materials, the generation of large carbides, that detrimentally affect the rolling co... | 03/31/1998 |
| 5632826 | Quasicrystalline precipitation hardened metal alloy and method of making A precipitation hardened metallic alloy is provided in which the strengthening is based on the precipitation of particles. The strengthening particles have a quasicrystalline structure, said structure being essentially maintained at aging times up to 1000... | 05/27/1997 |
| 5310431 | Creep resistant, precipitation-dispersion-strengthened, martensitic stainless steel and method thereof An iron-based, corrosion-resistant, precipitation strengthened, martensitic steel essentially free of delta ferrite for use at high temperatures has a nominal composition of 0.05-0.1 C, 8-12 Cr, 1-5 Co, 0.5-2.0 Ni, 0.41-1.0 Mo, 0.1-0.5 Ti, and the balance... | 05/10/1994 |
| 5178693 | Process for producing high strength stainless steel of duplex structure having excellent spring limit value A process for the production of a stainless steel strip having excellent spring characteristics as such and good formability, wherein a cold rolled strip of a stainless steel comprising, in addition to Fe, from 10.0 to 20.0% by weight of Cr, from 0.01 to ... | 01/12/1993 |
| 5122199 | Copper brazed torque converter pump housing made from formable high strength microalloyed steel A method is provided for thermally treating a high strength, microalloyed steel so as to first induce sufficient ductility (and corresponding low strength) in the microalloyed steel to readily enable the room temperature forming and/or machining of the st... | 06/16/1992 |
| 5059257 | Heat treatment of precipitation hardenable nickel and nickel-iron alloys This invention provides a process for improving, to at least a predetermined level, the stress rupture life and/or stress rupture ductility of precipitation hardenable nickel and nickel-iron base alloys containing nickel, niobium, and silicon when said al... | 10/22/1991 |
| 5045126 | Process and equipment for the heat treatment, before hardening, of metallic pieces by cementation, carbonitridation of heating The invention is exclusively concerned with heat treatments before hardening, of metallic pieces, by cementation, carbonitridation and heating. The process concerns the feeding of a non muffle heat treatment furnace with various components including nitro... | 09/03/1991 |
| 4729802 | Opener-disk heat-treating process and product A process for increasing surface hardness of a heat-hardenable steel disk, along an annular band intermediate the disk central and edge portions, is disclosed. The process contemplates selecting a first position on the surface of the intermediate annular ... | 03/08/1988 |
| 4710240 | Annealing steel strip Cold rolled steel strip is uncoiled, cleaned, and passed into an annealing furnace, wherein the strip is heated to and held at a relatively hot temperature, subsequently quenched, and coiled; after a period of storage the strip passes through the same equ... | 12/01/1987 |
| 4702406 | Forming stable welded joints between dissimilar metals A method of forming a stable welded joint between low alloy steels and austenitic stainless alloy steels which is characterized by increased resistance to chemical corrosion and mechanical stress and which has a greatly extended service lifetime. The meth... | 10/27/1987 |
| 4547229 | Solution heat treating of engine poppet valves A new solution heat treated engine poppet valve has been developed which has a microstructure characterized by a large grain size in the head for optimum high temperature creep and fatigue properties and a finer grain size in the stem for good low tempera... | 10/15/1985 |
| 4457789 | Process for annealing steels A process for the annealing of hypoeutectoid steels wherein a steel is rapidly heated to a temperature above the upper transformation temperature of the steel to convert the steel to austenite and carbides, followed by cooling of the steel. The rate of he... | 07/03/1984 |
| 4394187 | Method of making steels which are useful in fabricating pressure vessels Chromium-molybdenum structural steels which have high tensile strength, low susceptability to temper embrittlement, high hydrogen attack resistivity and high temperature ductility and which can be formed into very thick steel plates comprise 0.05 to 0.20%... | 07/19/1983 |
| 4365994 | Complex boride particle containing alloys Boron-containing transition metal alloys based on one or more of iron, cobalt and nickel, and containing at least two metal components, are characterized by being composed of ultrafine grains of a primary solid-solution phase randomly interspersed with pa... | 12/28/1982 |
| 4323403 | Continuous annealing method for cold reduced steel strip In a continuous annealing process for a cold reduced steel strip substantially including a rapid cooling stage and a carbon precipitation treating stage into said process, the rapid cooling rate which is obtained by initial heating to above the recrystall... | 04/06/1982 |
| 4302256 | Method of improving mechanical properties of alloy parts Age-hardenable alloy parts having melting points in excess of 1000° C., in particular high temperature superalloys, characterized by the presence of such structural defects as cast micropores, and/or grain boundary voids or internal microcracks resulting... | 11/24/1981 |
| 4281429 | Method for making fasteners A method for making a fastener having a head and a shank from a slug consisting essentially of an AISI 200 or 300 series stainless steel having an Md30 temperature in the range of about minus 50° C. to about 50° C. comprising the following st... | 08/04/1981 |
| 4282047 | Method of producing steel pipe material for oil well The method of producing steel pipe material for an oil well is characterized in that, as for the chemical composition of steel, B contained steel is adopted avoiding the addition of Ti which increases the values of non-metallic inclusions to decrease mach... | 08/04/1981 |
