Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7297214 | Free cutting alloy Provided is free cutting alloy excellent in machinability, preserving various characteristics as alloy. The free cutting alloy contains: one or more of Ti and Zr as a metal element component; and C being an indispensable element as a bonding component with the metal... | 11/20/2007 |
| 7294214 | Medical devices Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel. ... | 11/13/2007 |
| 7211159 | Ferritic heat-resistant steel and method for production thereof A ferritic heat-resistant steel, which exhibits excellent creep characteristics even at a high temperature exceeding 600° C., comprises, on the basis of percent by weight, 1.0 to 13% of chromium, 0.1 to 8.0% of cobalt, 0.01 to 0.20% of nitrogen, 3.0% or less of nic... | 05/01/2007 |
| 7194933 | Composite circular slicer knife A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion. ... | 03/27/2007 |
| 7162924 | Method and system for analyzing cavitation A method for analyzing cavitation in a component includes establishing an energy level associated with a system condition associated with the component and analyzing cavitation in response to said energy level. ... | 01/16/2007 |
| 6841122 | Hot working die steel excelling in molten corrosion resistance and strength at elevated temperature and member for high temperature use formed of the hot working die steel A hot working die steel contains 0.05-0.25% C, 0.30% or less Si, 0.03% or less Mn, 1.0% or less Ni, 5.0-13.0 % Cr, 2.0% or less Mo, 1.0-8.0% W, 1.0-10.0% Co, 0.003-0.020% B, 0.005-0.050% N, and the balance consisting essentially of Fe and unavoidable impurities. If ... | 01/11/2005 |
| 6737018 | Corrosion-resistant chromium steel for architectural and civil engineering structural elements A corrosion-resistant chromium steel for architectural and civil engineering structural elements, includes 0.0015 to 0.02 mass percent C, 0.0015 to 0.02 mass percent N, 0.1 to 1.0 mass percent Si, 0.1 to 3.0 mass percent Mn, more than 5 mass percent to less than 10 ... | 05/18/2004 |
| 6419878 | Fe-Cr alloy having excellent initial rust resistance, workability and weldability Fe--Cr alloy having excellent weldability and initial rust resistance with no requirement of greatly increasing the amount of elements such as Ni, Cu, Cr or Mo, addition of Nb or Ti and, further, excess reduction of C and N, in which the Fe--Cr alloy cont... | 07/16/2002 |
| 6355212 | Alloy for corrosion-resistant coatings or surface coatings The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chro... | 03/12/2002 |
| 6221183 | High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire A high-strength low-thermal-expansion alloy consisting of, by weight, 0.06 to 0.50% C, 25 to 65% in total of one or both of 65% or less Co and less than 30% Ni, and balance of Fe as a main component, other optional elements and unavoidable impurities, and... | 04/24/2001 |
| 6207103 | Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the same Fe--Cr--Si steel sheet having an excellent corrosion resistance and high toughness and method for manufacturing the same; the amount of Cr is about 10-30 wt %, the total amount of C and N is not more than about 100 ppm and the remainder consists of Fe and... | 03/27/2001 |
| 6174385 | Ferritic heat resistant steels A method of designing a ferritic iron-base alloy having excellent characteristics according not to the conventional trial-and-error technique but to a theoretical method, and a ferritic heat-resistant steel for use as the material of turbines and boilers ... | 01/16/2001 |
| 5911842 | Heat resisting steel and steam turbine rotor shaft and method of making thereof A heat resisting steel whose metal structure is entirely martensite phase produced by tempering after quenching. The steel comprises, by weight, 0.05 to 0.20% C, not more than 0.15% Si, not more than 1.5% Mn, not more than 1.0% Ni, 8.5 to 13.0% Cr, not mo... | 06/15/1999 |
| 5888318 | Method of producing ferritic iron-base alloys and ferritic heat resistant steels A method of designing a ferritic iron-base alloy having excellent characteristics according not to the conventional trial-and-error technique but to a theoretical method, and a ferritic heat-resistant steel for use as the material of turbines and boilers ... | 03/30/1999 |
| 5514328 | Cavitation erosion resistent steel A cavitation erosion resistant alloy comprising about 10 to 40 percent by weight of one or more carbide formers including some chromium, 5 to 15 percent by weight cobalt, 5 to 15 percent by weight manganese, 3.5 to 7.0 percent by weight silicon, 1.8 to 4.... | 05/07/1996 |
| 5501834 | Nonmagnetic ferrous alloy with excellent corrosion resistance and workability A Ni free ferrous nonmagnetic alloy having excellent corrosion resistance and workability and high cost performance is described. The alloy comprises, by weight, 9 to 25% Cr, 3 to 35% Mn, 3 to 40% Co and the balance Fe and incidental impurities, and sum of Mn ... | 03/26/1996 |
| 5350559 | Ferrite steel which excels in high-temperature strength and toughness A ferrite steel suitable for use as the material of a part which is used at high and which is required to have high toughness at weld heat affected zones. The ferrite steel has a composition which contains C: not more than 0.02 wt %, Si: not more than 2.0... | 09/27/1994 |
| 5340534 | Corrosion resistant austenitic stainless steel with improved galling resistance An austenitic, stainless steel alloy having a good combination of galling resistance and corrosion resistance is disclosed containing in weight percent about: ______________________________________ Broad Intermediate ... | 08/23/1994 |
| 5296054 | Austenitic steel The invention relates to a high-silicon-content corrosion-resistant austenitic steel, characterized by alloying contents (in % by weight) of ______________________________________ max. 0.2% C 10 to 25% ... | 03/22/1994 |
| 5096514 | Heat-resistant ferritic cast steel having excellent thermal fatigue resistance A heat-resistant ferritic cast steel having excellent thermal fatigue resistance, consisting, by weight, of 0.25 to 0.45% C, 0.3 to 2.0% Si, not more than 1.0% Mn, 17 to 22% Cr, at least one kind selected from the group consisting of not more than 6% Co a... | 03/17/1992 |
| 5051233 | Stainless wrought and cast materials and welding additives for structural units exposed to hot, concentrated sulfuric acid In the processing of hot concentrated sulfuric acid or oleum in steel apparatus, the improvement wherein said apparatus is formed of an alloyed material comprising an iron-chrome-nickel-silicon alloy containing 13 to 32% by weight Cr, 5 to 25% by weight n... | 09/24/1991 |
| 4957550 | Ultrasonic machining tool for machining orthodontic brackets An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into ... | 09/18/1990 |
| 4948556 | Piston ring material and piston ring A piston ring material is capable of improving the heat resistance, abrasion resistance, nitriding characteristics and scuffing resistance that are required in a piston ring, the C content is 0.6 to 1.5%, and Co is contained in high Cr steel. The piston r... | 08/14/1990 |
| 4933027 | Iron-based shape-memory alloy excellent in shape-memory property, corrosion resistance and high-temperature oxidation resistance An iron-based shape-memory alloy excellent in a shape-memory property, a corrosion resistance and a high-temperature oxidation resistance, consisting essentially of: chromium: from 5.0 to 20.0 wt. %, silicon: from 2.0 to 8.0 wt. %, at least one element selecte... | 06/12/1990 |
| 4865661 | Product of a high-strength nitrogen containing fully austenitic cobalt steel having yield strengths above 600 N/MM2 A high strength austenitic steel having a yield strength above 600 N/mm2 at 02% permanent strain, containing about 0.5 to 1.5% by weight of nitrogen, about 6 to 12% by weight cobalt, and less than 5% by weight nickel. The steel is treated at ab... | 09/12/1989 |
| 4751046 | Austenitic stainless steel with high cavitation erosion resistance An austenitic stainless steel alloy showing a high cavitation erosion resistance making it particularly useful for the manufacture and/or repair of hydraulic machine components. The alloy consists essentially of from 8 to 30% by weight of Co; from 13 to 3... | 06/14/1988 |
| 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 |
| 4668310 | Amorphous alloys Amorphous alloys having high strength, high hardness, high crystallization temperature, high saturation magnetic induction, low coercive force, high magnetic permeability and particularly low deterioration of magnetic properties with lapse of time, have a... | 05/26/1987 |
| 4666733 | Method of heat treating of wear resistant coatings and compositions useful therefor Method is provided for forming an improved wear resistant coating on a metallic surface. Novel compositions for forming said coating are provided consisting essentially of 60 to 90% by volume Cr3 C2 and 40 to 10% by volume of a matri... | 05/19/1987 |
| 4643767 | Nuclear grade steels 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... | 02/17/1987 |
| 4615658 | Shroud for gas turbines This invention relates to an improvement on material of a shroud for gas turbines. The material comprises 0.25-0.7 wt % C, 20-35 wt % Cr, 20-40 wt % Ni and balance Fe, and has an austenitic structure. The amount of the ς-phase in this invention is less t... | 10/07/1986 |
| 4616154 | Cathode ray tube having an Fe-Co-Cr shadow mask and method of manufacturing such a shadow mask A cathode-ray tube of the post-focusing type comprising color selection means in the form of a ferromagnetic plate having a large number of apertures. The plate is magnetized so that a magnetic quadrupole lens is formed in each aperture. The ferromagnetic... | 10/07/1986 |
| 4588440 | Co containing austenitic stainless steel with high cavitation erosion resistance A soft, austenitic stainless steel alloy showing a high cavitation erosion resistance making it particularly useful for the manufacture and/or repair of hydraulic machine components. The alloy comprises from 8 to 30% by weight of Co; from 13 to 30% by wei... | 05/13/1986 |
| 4586969 | Fe-Ni-Ti-Co alloy with shape memory effect and pseudo-elasticity and method of producing the same The disclosed alloy with a shape memory effect and a pseudo-elasticity exhibits a thin-plate martensitic structure, which alloy is made by heating an alloy consisting of 32-34 wt. % of nickel, 3-6 wt. % of titanium, 10-15 wt. % of cobalt and the remainder... | 05/06/1986 |
| 4487630 | Wear-resistant stainless steel A high chromium stainless steel especially suited for use as wear (galling) resisting components, for example, valve parts. A typical alloy generally contains chromium, nickel, silicon, carbon, an effective cobalt content and the balance iron plus normal ... | 12/11/1984 |
| 4434006 | Free cutting steel containing controlled inclusions and the method of making the same Mechanical anisotropy of a free cutting steel having excellent machinability can be effectively decreased by controlling inclusions so that the steel may contain inclusion A which softens at a temperature below 1000° C. and inclusion B which has a meltin... | 02/28/1984 |
| 4362553 | Tool steels which contain boron and have been processed using a rapid solidification process and method Iron base alloys containing chromium and refractory metals as well as 0.8 to 1.3 wt % boron are disclosed. The alloys are subjected to a rapid solidification processing (RSP) technique, producing cooling rates of about 105 to 107 ° ... | 12/07/1982 |
| 4318733 | Tool steels which contain boron and have been processed using a rapid solidification process and method Alloys having compositions similar to commercial tool steels, but modified by the addition of 0.1 to 1.5 wt. % boron are disclosed. The alloys are subjected to a rapid solidification processing (RSP) technique, producing cooling rates between 105 | 03/09/1982 |
| 4236919 | Magnetic alloy A magnetic alloy of the Fe-Cr-Co type having superior magnetic properties compared to those of the conventional magnetic alloys of this kind and consisting essentially of, by weight, 5 to 30%Co, 15 to 35%Cr, 0.1 to 10%Ti, 0.1 to 10%V, 0.005 to 0.03%C, 0 t... | 12/02/1980 |
| 4218243 | Fully martensitic steel for a metal mold for molding glass and the metal mold A steel which consists essentially of 0.25-0.65% of C, up to 2.50% of Si, up to 2.00% of Mn, 10.00-20.00% of Cr, 4.00-13.00% of Co, 1.00-3.00% of Al, up to 0.25% of N and the balance essentially Fe and ordinary impurities and satisfies the relation: provi... | 08/19/1980 |
