Quotables
"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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 |
| 4822415 | Thermal spray iron alloy powder containing molybdenum, copper and boron A novel iron based alloy is disclosed which is characterized by high resistance to wear and corrosion. The alloy consists essentially of 0 to 40% chromium, 1 to 40% molybdenum, 1 to 15% copper, 0.2 to 5% boron, and 0.01 to 2% carbon; the balance being inc... | 04/18/1989 |
| 4798635 | Ferritic-austenitic stainless steel The present invention presents a ferritic-austenitic Cr-Ni-N-Steel alloy with a stable austenite phase, high corrosion resistance and good weldability, said steel alloy consisting essentially of the following elements by weight; max 0.06% C, 21-24.5% Cr, ... | 01/17/1989 |
| 4769214 | Ultrahigh carbon steels containing aluminum An ultrahigh carbon steel having a composition of carbon in an amount of from about 0.8 weight percent up to the maximum solubility limit of carbon in austenite, aluminum in an amount of from about 0.5 to about 10 weight percent, an effective amount of a ... | 09/06/1988 |
| 4755238 | Straightened rail The steel rail is submitted to a tensile stress exceeding the conventional 0.2% offset yield strength of the steel, up to a stress value corresponding to a total plastic deformation of the whole rail.... | 07/05/1988 |
| 4735774 | Aluminum-lithium alloy (4) An aluminum-lithium alloy exhibiting good fracture toughness and relatively high strength has a nominal composition of 2.5 percent lithium, 1.0 percent magnesium, 1.6 percent copper, 0.12 percent zirconium with the balance being aluminum and trace element... | 04/05/1988 |
| 4726858 | Recording material A recording material made of an alloy capable of exhibiting different spectral reflectances at an equal temperature, depending on a heating-cooling cycle to which the alloy is subjected. The alloy can possess in solid state different crystal structures at... | 02/23/1988 |
| 4724012 | Material for in-tube components and method of manufacturing it In-tube component material for an electronic tube such as a color cathode ray tube, of low thermal expansion coefficient and grain size 2,000-40,000 grains/mm2, containing Fe as the main constituent and 25-45 wt % Ni, 0.3-10 wt % Cr, and 0-10 w... | 02/09/1988 |
| 4721538 | Permanent magnet alloy A rare-earth element permanent magnet alloy characterized by good magnetic alignment and high energy product, said magnet consisting essentially of, in atomic percent, at least one rare earth element didymium, mischmetal, neodymium and thorium 12 to 20, b... | 01/26/1988 |
| 4721600 | Superplastic ferrous duplex-phase alloy and a hot working method therefor A superplastic hot working method for a duplex-phase, nitrogen-containing ferrous alloy and stainless steel, and a superplastic duplex-phase ferrous alloy are disclosed. The ferrous alloy comprises: at least one of Si and Mn in an amount of not less than ... | 01/26/1988 |
| 4720435 | Nuclear grade steel articles Disclosed is an iron-base alloy eminently suited for use as components in nuclear energy installations. The alloy normally contains, in percent by weight, about 20% chromium, about 10% nickel, about 5.5% silicon, about 1.5% carbon, about 8% niobium plus v... | 01/19/1988 |
| 4719079 | Continuous-cast low-carbon resulfurized free-cutting steel A continuous-cast low-carbon resulfurized free-cutting steel which consists in weight percentage of C: 0.05-0.15, Mn: 0.5-1.5, P: 0.05-0.10, S: 0.15-0.40, O: 0.010-0.020, one or more of Pb, Bi, and Te as accompanying elements for improving machinability at a f... | 01/12/1988 |
| 4715908 | Duplex stainless steel product with improved mechanical properties A method of making a duplex stainless steel is provided for an alloy having the following composition: by selecting a heat treating temperature in the range of about 2050° F. to about 2350° F. to provide a desired impact toughness and a desired yield st... | 12/29/1987 |
| 4714659 | Thermal protective shield Thermal protective shield to be used in connection with hot gases in engines, particularly for the combustion of solid, liquid or gaseous fuels or in e.g. Stirling engines driven by solar energy. The thermal protective shield consists of a multi-layer mat... | 12/22/1987 |
| 4714502 | Soft magnetic stainless steel for cold forging A soft magnetic stainless steel consists essentially of, by weight, up to 0.03% of C, 0.40 to 1.10% of Si, up to 0.50% of Mn, 9.0 to 19.0% of Cr, 0.31 to 0.60% of Al, 0.01 to 0.03% of S, 0.10 to 0.30% of Pb, 0.02 to 0.25% of Ti, 0.02 to 0.10% of Zr, and u... | 12/22/1987 |
| 4711665 | Oxidation resistant alloy An oxidation resistant alloy comprising about 3 to 14 percent Cr by weight, about 3 to 50 percent by volume Si3 N4, and the balance selected from the group consisting of Fe, Ni, Co and alloys of these metals. Preferably, the Cr conte... | 12/08/1987 |
| 4711675 | Process for improving the sag-resistance and hardenability of a spring steel A spring steel having a good sag-resistance and a good hardenability comprises by weight 0.5-0.8% carbon, 1.5-2.5% silicon, 1.6-2.5% manganese and a member or members selected from a group consisting of 0.05-0.5% vanadium, 0.05-0.5 niobium and 0.05-0.5% m... | 12/08/1987 |
| 4710347 | Maraging steel having high strength and high toughness Cobalt-free maraging steels consist essentially of 15% to 25% nickel, 2% to 8% tungsten, 0.5% to 2.0% titanium, 0.05% to 0.3% aluminum, and the balance iron so that the maraging steels exhibit a yield strength in the range of 240,000 Psi (1656 Mpa) to 265... | 12/01/1987 |
| 4710244 | Dredger teeth The invention concerns the use of a wear resistant, temper resisting steel alloy of The alloy is used as the work material for making dredger teeth forged in a close-die, especially suction dredger teeth, which teeth after the forging are heated to a temp... | 12/01/1987 |
| 4708748 | Method of making cold rolled dual-phase structure steel sheet having an excellent deep drawability A cold rolled dual-phase structure steel sheet having an excellent deep drawability is disclosed, which consists of ferrite phase and low temperature transformation product phase and comprises 0.001-0.008 wt % of C, not more than 1.0 wt % of Si, 0.05-1.8 ... | 11/24/1987 |
| 4705581 | Soft magnetic stainless steel A soft magnetic stainless steel consisting essentially of, by weight, up to 0.03% of C, 2.0 to 3.0% of Si, up to 0.40% of Mn, 0.015 to 0.050% of S, 10 to 13% of Cr, 0.05 to 0.20% of Ti, up to 0.03% of N, up to 0.010% of Al, and the balance of Fe and inevi... | 11/10/1987 |
| 4703885 | Method of welding austenitic steel to ferritic steel with filler alloys An austentic steel component is fused to a ferritic steel component with a filler alloy specifically formulated to have a thermal coefficient of expansion similar to that of the ferritic steel, a creep rate intermediate between that of the ferritic and au... | 11/03/1987 |
| 4702778 | Method for softening rolled medium carbon machine structural steels A method of softening a rolled medium carbon machine structural steel is provided. This method is characterized by: (1) hot rolling steel containing 0.32-0.65% C, less than 0.05% Si, 0.3-0.9% in total of Mn and Cr, with the Mn and Cr contents being 0.2-0.5% an... | 10/27/1987 |
| 4698103 | Method of manufacturing dual phase strip steel and steel strip manufactured by the method In a method of manufacturing a dual phase steel a strip of thickness 0.1 to 0.5 mm from an unalloyed low C, low Mn steel composition of 0.02-0.15% C and 0.15-0.50% Mn, which method includes continuous annealing, a flat product can be obtained without stri... | 10/06/1987 |
| 4690876 | Article comprising a ductile brazing alloy foil containing reactive metals and precious metals Reactive metal-precious metal ductile alloys containing controlled amounts of Cu and Ni and mixtures thereof are suitable for brazing ceramics, other non-metallic and metallic materials.... | 09/01/1987 |
| 4690798 | Ultrasoft stainless steel An ultrasoft ferritic stainless steel having excellent stamping formability and corrosion resistance in use, which consists essentially of: about 0.002 to 0.03% by weight of carbon, about 0.01 to 0.30% by weight of silicon, about 0.01 to 1.5% by weight of mang... | 09/01/1987 |
| 4689091 | Process for producing zirconium-based alloy In a process for producing a zirconium-based alloy in which after the zirconium-based alloy is subjected to hot plastic working, it is subjected to cold plastic working and then to annealing and these steps are repeated at least twice, the present inventi... | 08/25/1987 |
| 4689095 | Steel for manufacturing large forged parts The present invention provides a steel containing, by mass: from 0.16% to 0.22% carbon (C) less than 0.3% silicon (Si) less than 0.5% manganese (Mn) from 0.6% to 0.9% nickel (Ni) from 10.7% to 12.3% chromium (Cr) from 0.8% to 1.1% molybdenum (Mo) from 0.2% to 0.35% vana... | 08/25/1987 |
| 4689198 | Austenitic stainless steel with high corrosion resistance and high strength when heat treated Disclosed herein is a high strength austenitic stainless steel with excellent corrosion resistance even in oxidative enviroments, and a method for producing such stainless steel, in which the kinds and proportions of the component elements are strictly re... | 08/25/1987 |
| 4687525 | Worked low-temperature tough ferritic steel The invention concerns a method for manufacturing a worked weldable, low temperature ferritic steel consisting of 0.015 to 0.08% C 0.1 to 0.5% Si 0.3 to 0.6% Mn | 08/18/1987 |
| 4684579 | Ductile low temperature brazing alloy foil Reactive metal silver alloys containing controlled levels of copper, aluminum or mixtures thereof liquidus temperatures in the range of from about 750° C. to about 950° C., are ductile and after brazing are relatively free of hard dispersed phases. The ... | 08/04/1987 |
| 4684505 | Heat resistant alloys with low strategic alloy content A high temperature alloy displaying excellent elevated temperature properties as well as low strategic metals content. Based on the iron/aluminum system, the alloy contains about 10 to 19% aluminum, 2 to 8% titanium, from about 0.5 to 10% molybdenium, fro... | 08/04/1987 |
| 4678636 | Ductile brazing alloy containing reactive metals and precious metals Reactive metal-precious metal ductile alloys containing controlled amounts of Cu and Ni and mixtures thereof are suitable for brazing ceramics, other non-metallic and metallic materials.... | 07/07/1987 |
| 4678523 | Corrosion- and wear-resistant duplex steel Disclosed is a "duplex" stainless steel especially suited for use in conditions requiring a high degree of wear and corrosion resistance; for example structural fasteners, such as nuts and bolts as used in chemical processing. The alloy typically contains... | 07/07/1987 |
| 4678521 | Process for producing zirconium-based alloy and the product thereof In a process for producing a zirconium-based alloy in which after the zirconium-based alloy is subjected to hot plastic working, it is subjected to cold plastic working and then to annealing and these steps are repeated at least twice, the present inventi... | 07/07/1987 |
| 4675156 | Structural austenitic stainless steel with superior proof stress and toughness at cryogenic temperatures Disclosed is a structural austenitic stainless steel with superior proof stress and toughness at cryogenic temperatures. The steel has a composition essentially consisting of, by weight, not greater than 0.05% of carbon, 0.20 to 0.70% of nitrogen, not gre... | 06/23/1987 |
| 4673123 | Filler for welding a heat resistant nickel-base alloy A filler for welding a heat-resistant nickel-base alloy is disclosed. The filler comprises heat-resistant nickel-base alloy and an additive of 0.003 to 0.015 wt % boron based on the total weight of the filler metal. The filler may further comprise an othe... | 06/16/1987 |
| 4671929 | Austenitic stainless steel with improved resistance to corrosion by nitric acid An austenitic stainless steel exhibiting improved resistance to corrosion caused by nitric acid is disclosed, which consists essentially of: C: not more than 0.03% by weight, Si: 2-6% by weight, Mn: 0.1-8% by weight, Cr: 20-35% by weight, Ni: 17-50% by weight, Mg: ... | 06/09/1987 |
| 4671827 | Method of forming high-strength, tough, corrosion-resistant steel A high-strength, tough alloy steel is formed by heating an alloy steel comprising iron, 0.1-0.4 weight % carbon, 1-3 weight % manganese and 1-13 weight % chromium and optionally containing microalloying amounts of other metals to about 1150° C. to form a... | 06/09/1987 |
| 4671930 | High hardness and high toughness nitriding powder metallurgical high-speed steel A high-speed steel obtained by powder metallurgy processing wherein a chemical composition includes, by weight %, C: a quantity (%) which satisfies with the following formula ##EQU1## where Ceq=0.19+0.017 (W+2Mo)+0.22 V N, W, Mo and V are respectively the... | 06/09/1987 |
| 4670065 | Cold rolled steel suitable for enamel coating and method for making A cold rolled steel sheet suitable for enamel coating is provided which consists essentially of, on a weight basis, C: up to 0.005%, P: up to 0.02%, S: up to 0.03%, N: 0.005% to 0.012%, Ti: up to 0.15% and Cu: up to 0.08%, and at least one member selected from As, ... | 06/02/1987 |
