Quotables
"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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 |
| 8083869 | Ferrous seal sliding parts and producing method thereof A ferrous seal sliding part excellent in heat crack resistance, seizure resistance and abrasion resistance is provided. The ferrous seal sliding part has a seal sliding surface, wherein the seal sliding surface has a quench hardened layer having a structure in which... | 12/27/2011 |
| 7628870 | Heat treated valve guide and method of making A valve guide of alloyed gray cast iron comprising from about 3 to about 3.5 wt. % carbon, about 0.2 wt. % phosphorous maximum, from about 0.35 to about 0.75 wt. % molybdenum, from about 1.8 to about 3 wt. % silicon, from about 0.6 to about 1 wt. % manganese, from a... | 12/08/2009 |
| 7615123 | Cold-work tool steel article A powder metallurgy cold-work tool steel article of hot isostatic compacted nitrogen atomized, prealloyed powder. The alloy of the article includes the addition of niobium, which combined with the use of gas atomization, results in a fine carbide size distribution. ... | 11/10/2009 |
| 7497915 | Machinable austempered cast iron article having improved machinability, fatigue performance, and resistance to environmental cracking A machinable austempered cast iron article has improved strength, machinability, fatigue performance, and resistance to environmental cracking. A method of making the machinable austempered cast iron article includes austenitizing an iron composition having a substa... | 03/03/2009 |
| 7419554 | Engine cylinder block and cylinder head fabricated from a grey cast iron alloy A grey cast iron alloy for producing cylinder block and/or cylinder head castings including iron, carbon, silicon, manganese, phosphorus, sulphur, tin, copper, chromium, molybdenum and nitrogen. The nitrogen content of the alloy is in the range of 0.0095-0.016 perce... | 09/02/2008 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7261192 | Brake disk and method for the production thereof The invention relates to a brake disk having axial friction surfaces, preferably for land vehicles, in particular, an internally ventilated brake disk having two friction rings that are joined via connecting elements, whereby one of the axial outer surfaces of the b... | 08/28/2007 |
| 7210388 | Bimetal saw band A bimetal saw band which is suitable for cutting materials of high hardness and wear resistance at high cutting speeds and with a reduced consumption of coolant is disclosed. The saw band includes a support band with from 0.20 to 0.45% of carbon, from 0.2 to 0.6% of... | 05/01/2007 |
| 7163593 | Iron-based alloy and method for production thereof An iron-based alloy comprises 1.5 to 2.5 wt % of C, 0.25 to 4.75 wt % of Ni, and W and V in quantities surrounded by the line L as shown in FIG. 1 of the attached drawings with a balance of Fe and inevitable impurities. The iron-based alloy is obtained by a f... | 01/16/2007 |
| 7163594 | High tensile strength gray iron alloy A gray iron alloy having a composition comprising about 4.10% to about 4.25% carbon equivalent, about 3.5% to about 3.65% carbon, about 0.4% to about 0.9% manganese, about 1.5% to about 1.9% silicon, less than about 0.12% phosphorous, less than about 0.17% sulfur, a... | 01/16/2007 |
| 7156929 | Cast iron alloy The invention proposes a cast iron alloy for cast iron products which are highly thermally stable, the alloy containing, as nonferrous constituents, at least the elements C, Si, Mo, Al and, as admixtures, Ni, Mg and/or S, and the C content being less than 2.9% by we... | 01/02/2007 |
| 7086151 | Powder metal scrolls Scrolls made from one or more near-net shaped powder metal processes either wholly or fabricated together from sections. Both “conventional” press and sinter methods and metal injection molding methods will be described. ... | 08/08/2006 |
| 7083685 | Gray cast iron member A gray cast iron member includes 2.2–2.8 weight % C, 2.3–3.5 weight % Si, 0.2–0.8 weight % Mn, up to 0.1 weight % P, up to 0.15 weight % S, 0.6–1.4 weight % Cu, up to 0.5 weight % Mo, up to 0.3 weight % Cr, and the balance substantially Fe, Si/C being 0.95 o... | 08/01/2006 |
| 7081172 | Nodular graphite cast iron with high strength and high toughness A nodular graphite cast iron is provided, having a pearlite matrix, with high strength and high toughness. The nodular graphite cast iron consists essentially of, by weight %: from 3.0 to 4.6% of carbon; from 1.6 to 2.5% of silicon; from 0.2 to 0.6% of manganese; fr... | 07/25/2006 |
| 7081151 | Alloy and method for producing same It is possible to generate a desirable form (soft, pliable) of sulfide inclusions in magnesium-treated case irons. Thermodynamically, MnS and MoS2 are not stable in the presence of magnesium. However, by adding magnesium to a cast iron melt containing man... | 07/25/2006 |
| 7081150 | Additive for inoculation of cast iron and method An additive for increasing the toughness of thin-wall iron castings is provided. The additive includes amounts of a non-ferrous metal oxide and a metal sulfide in which the non-ferrous metal has an affinity for oxygen less than that of iron, and the metal has an aff... | 07/25/2006 |
| 7070666 | Machinable austempered cast iron article having improved machinability, fatigue performance, and resistance to environmental cracking and a method of making the same A machinable austempered cast iron article has improved strength, machinability, fatigue performance, and resistance to environmental cracking. A method of making the machinable austempered cast iron article includes austenitizing an iron composition having a substa... | 07/04/2006 |
| 7024982 | Combination of piston and piston ring A combination of piston and piston ring includes a piston having a piston ring groove in which at least the groove portion of the piston is made of steel, a piston ring made of cast iron and fitted into the piston ring groove, and a hard coat film formed to at least... | 04/11/2006 |
| 6939414 | Nodular graphite iron alloy A nodular cast iron alloy for cast iron products having a high modulus of elasticity comprising the chemical constituents C, Si, Cu, Ni and/or Mo, Mn, Mg and S, wherein the alloy is composed in per cent by weight of: C | 09/06/2005 |
| 6923246 | Billet, horizontal continuous casting process, and thixocasting process A billet for a thixocasting process and a thixocasting process using the billet allows casting using a thixocasting process to be realized at low production cost without permeation of an oxide film to the inside of the billet in injection molding. In a billet used f... | 08/02/2005 |
| 6916444 | Wear resistant alloy containing residual austenite for valve seat insert This invention related to a novel iron base alloy using residual austenite to improve wear resistance for valve seat insert material for internal combustion engines. The residual austenite is stable even after heat treatment and liquid nitrogen chilling. The alloy c... | 07/12/2005 |
| 6908589 | High manganese cast iron containing spheroidal vanadium carbide and method for making therof The purpose of the present invention is to provide high manganese cast iron containing spheroidal vanadium carbide and method for making which is nonmagnetic as well as superior mechanical properties such as wear-resistance and toughness, and further does not requir... | 06/21/2005 |
| 6866726 | Non-austemper treated spheroidal graphite cast iron A non-austemper-treated spheroidal graphite cast iron obtainable without being subjected to an austemper treatment. The non-austemper-treated spheroidal graphite cast iron has a tensile strength of 650-850 MPa and an elongation of 7.0-14.5%. In the non-austemper-tre... | 03/15/2005 |
| 6863744 | Iron based alloy material for thixocasting process and method for casting the same An iron based alloy material for a thixocasting process and a method for casting the material which extends the service life of dies by inhibiting solidification contraction, and in which casting defects such as size variations and cracks can be inhibited. The mater... | 03/08/2005 |
| 6861029 | Nodular cast iron alloy A modified nodular cast iron alloy contains positive additions of boron and silicon in a content of greater than 2.4% by wt. ... | 03/01/2005 |
| 6837945 | Steel cold work tool, its use and manufacturing The invention concerns a steel article, which consists of an alloy having a chemical composition, which contains in weight-%: 1.2 to 2.5 C; 0.8 to 2.0 Si, which partly can be replaced by aluminium, which may exist in an amount of max 1.0%; 0.1 to 1.5 Mn; 0.5 to 1.5 ... | 01/04/2005 |
| 6746550 | Compacted graphite cast iron alloy and its method of making A process for producing a compacted graphite iron (CGI) article, comprising the steps of: (a) providing a CGI base iron having a composition comprising, in weight percentages, about 3.2 to 3.8 total C, 2.8 to 4.0 Si and the balance at least Fe and incidental impurit... | 06/08/2004 |
| 6723182 | Martensitic alloy steels having intermetallic compounds and precipitates as a substitute for cobalt A cobalt-free martensitic steel exhibiting good response to hardening and resistance to softening at high temperatures, the steel containing sub-micron and nano-structural precipitates and intermetallic compounds of silicon, nickel, aluminum, copper and manganese. | 04/20/2004 |
| 6723180 | Friction clutch comprising a friction element formed of flake graphite alloy A gray cast iron alloy for a friction element of a friction clutch, which may be brought into frictional contact with a clutch disk by a friction surface of the friction element, contains: 3.0-3.4 percent by weight C, 1.8-2.3 percent by weight Si, 0.4-0.8 percent by... | 04/20/2004 |
| 6699335 | Machine part Machine part is constituted with steel with the carbon content of 0.2% or more and reduced with the hydrogen content after hardening by a heat treatment to 0.04 ppm or less. Further, hardness after hardening by the heat treatment is made to Hv 450 or more... | 03/02/2004 |
| 6616777 | Fe alloy material for thixocasting and method for heating the same A thixocast Fe-based alloy material is provided, from which a cast product having mechanical properties uniform over the whole thereof can be produced. The Fe-based alloy material comprises 1.8% by weightࣘCࣘ2.5% by weight, 1.0% by weightࣘSiࣘ3.0... | 09/09/2003 |
| 6613274 | Cast iron alloy and method of making the same The invention provides a cast iron alloy comprising 3.0-3.8% carbon, 06-25% silicon, 0.2-0.65% manganese, 0.01-0.1% tin, | 09/02/2003 |
| 6572712 | Compacted graphite iron brake drum A compacted graphite iron brake component for use in a braking system having a final composition of: 3.0 to about 4.0 percent carbon; 2.15 to about 2.60 percent silicon; 0.40 to about 0.90 manganese; and the balance iron. The brake component having a fric... | 06/03/2003 |
| 6527878 | Thixocast casting material, process for preparing thixocasting semi-molten casting material, thixocast process, fe-based cast product, and process for thermally treating fe-based cast product A thixocast casting material is formed of an Fe--C--Si based alloy in which an angle endothermic section due to the melting of a eutectic crystal exists in a latent heat distribution curve and has a eutectic crystal amount Ec in a range of 10% by weight | 03/04/2003 |
| 6527877 | Iron-based alloy containing bonded and free carbon and method of manufacturing the same An alloy having two constituents: a crystal structure of orderly solid iron-based solution; a non-metallic phase at least partially soluble in iron including particles which are uniformly dispersed in the volume of the first phase and are of suitable size... | 03/04/2003 |
| 6508981 | High temperature oxidation resistant ductile iron A nodular or compacted graphite iron contains up to 6% aluminum, with high strength and good ductility over a wide temperature range, combined with excellent hot oxidation resistance and improved thermal fatigue resistance compared to ductile and SiMo duc... | 01/21/2003 |
| 6478016 | Gear driven supercharger having noise reducing impeller shaft A centrifugal supercharger includes a gear-type transmission for drivingly connecting the impeller to the engine. The transmission includes an impeller shaft supporting the impeller and being fixed relative to one of the gears of the transmission. The pre... | 11/12/2002 |
| 6457960 | Hermetic compressor and open compressor The present invention provides a hermetic or open compressor for hydrocarbon refrigerant having high reliability. According to the present invention, in the compressor using hydrocarbon as refrigerant, synthetic oil such as polyalkylene glycol oil, ester ... | 10/01/2002 |
| 6444055 | Composite material with a high proportion of intermetallic phases, preferably for friction bodies A metallic cast material for friction bodies in acceleration or deceleration devices, particularly in the brake or clutch systems of road or rail vehicles, is produced from the iron/aluminum/carbon tertiary group so that the material is largely in the int... | 09/03/2002 |
| 6398881 | Wear-resistant camshaft and method of producing the same The invention concerns a wear-resistant camshaft and a method of producing the same. Objects in which the application of the invention is possible and useful are all cast-iron parts which are subject to wear as a result of lubricated friction. The wear-re... | 06/04/2002 |
