Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7896984 | Method for manufacturing seamless steel pipe for line pipe A seamless steel pipe for line pipe having high strength and stable toughness and having resistance to sulfide corrosion cracking at low temperatures to room temperature is provided. A seamless steel pipe according to the present invention has a chemical composition... | 03/01/2011 |
| 7431781 | Method for forming a common-rail injection system for diesel engine A common-rail injection system is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can b... | 10/07/2008 |
| 7393420 | Steel tube for bearing element parts and method of manufacturing as well as machining the same Steel tubes for bearing element parts according to the present invention, wherein the specific compositions are limited and an accumulation intensity of {211} face along with an impact property at ambient temperature in the longitudinal direction of steel tube are s... | 07/01/2008 |
| 7238434 | Welded structure having improved resistance to stress corrosion cracking This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8–16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time o... | 07/03/2007 |
| 7169239 | Solid expandable tubular members formed from very low carbon steel and method A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy... | 01/30/2007 |
| 7131625 | Ejector pin and method An insert for a mold comprising a plug, having an insert face, and a receiver defined by a sidewall with one of the plug and the receiver having a groove that receives a guide that extends from the other of the plug and the receiver so as to facilitate rotation of t... | 11/07/2006 |
| 7060951 | Apparatus for the clamping of a rotary tool in a tool holder To set the length of a rotary tool (1a), to be thermally shrunk in place in a tool holder (7a), by means of an inductive heating device (15a), a setting device is provided with a positioning holder (61) for the rotary... | 06/13/2006 |
| 6948649 | Method of producing steel pipes, and welded pipes The high yield ratio problem intrinsic in high-strength steel pipes is solved and a method of producing a steel pipe, while securing the pipe roundness is provided. A steel pipe produced from a steel plate by forming and welding is subjected to 0.3 to 1.2% of expans... | 09/27/2005 |
| 6887322 | High pressure cylinders including backing steel with tool steel lining High pressure cylinders comprising backing steel cylinders and tool steel liners are disclosed. An annealed tool steel liner is inserted into the backing steel cylinder, followed by heat treating to harden the tool steel liner. The tool steel liner may be provided a... | 05/03/2005 |
| 6866725 | Steel pipe excellent in formability and method of producing the same The present invention is a high strength steel pipe excellent in formability in hydroforming and similar forming methods, characterized by: containing, in mass, C of 0.0005 to 0.30%, Si of 0.001 to 2.0%, Mn of 0.01 to 3.0% and appropriate amounts of other elements i... | 03/15/2005 |
| 6780261 | Method of manufacturing an implantable stent having improved mechanical properties A metallurgical process for producing a metallic implantable medical device, such as a stent, in a condition wherein the metallic alloy of the device has improved mechanical properties. The starting material is formed into an oversized tube which is drawn to finishe... | 08/24/2004 |
| 6749954 | Welded steel pipe having excellent hydroformability and method for making the same A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.03% to about 0.2% C, about 2.0% or less of Si, not less than about 1.0% to about 1.5% Mn, about 0.1% or le... | 06/15/2004 |
| 6749894 | Corrosion-resistant coatings for steel tubes A method of providing a protective, corrosion-resistant thin coating of a MCrX alloy on a carbon or low-alloy steel pipe or tube where M is one of nickel, cobalt or iron or combination thereof and X is one of molybdenum, silicon, tungsten or combination thereof, and... | 06/15/2004 |
| 6723453 | Welded steel pipe having excellent hydroformability and method for making the same A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.05% to about 0.2% C; about 0.2% or less of Si; about 1.5% or less of Mn; about 0.1% or less of P; about 0.... | 04/20/2004 |
| 6682829 | Welded steel pipe having excellent hydroformability and method for making the same A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition comprising, on the basis of mass percent: about 0.05% to about 0.3% C; about 2.0% or less of Si; more than about 1.5% to about 5.0% Mn; about 0.1... | 01/27/2004 |
| 6682610 | Manufacturing method for hollow stabilizer A manufacturing method for a hollow stabilizer comprises a primary pipe manufacturing process for subjecting a seam-welded pipe to hot reduction working, thereby obtaining a primary pipe, and winding the primary pipe in a coil, a cold drawing process for ... | 01/27/2004 |
| 6652680 | Method for producing tubes for heavy guns The method for producing tubes for heavy guns employs a heat-treatable steel, consisting in wt.-% of 0.20 to 0.50% carbon, max. 1.0% silicon, max. 1.0% manganese, max. 0.03% phosphorus, max. 0.03% sulfur, max. 0.1% aluminum, max. 4% nickel, max. 2% chromi... | 11/25/2003 |
| 6632296 | Steel pipe having high formability and method for producing the same The present invention provides a steel pipe excellent in formability during hydraulic forming and the like and a method to produce the same, and more specifically: a steel pipe excellent in formability having an r-value of 1.4 or larger in the axial direc... | 10/14/2003 |
| 6589373 | Selectively heat treated airbag canister and method for making same A selectively heat treated canister for use in a vehicle airbag deployment system is configured to contain combustion materials and to contain gases produced from the combustion thereof. The canister includes a tubular body having a length and a longitudi... | 07/08/2003 |
| 6565682 | Process for producing high-strength heat-resistant pipe An object is to provide a heat-resistant steel which can be produced at a low cost but possesses an excellent high-temperature strength. A high-strength heat-resistant steel is provided which comprises C in an amount of 0.06 to 0.15% by weight, Si in an a... | 05/20/2003 |
| 6475307 | Method for fabricating vehicle components and new use of a precipitation hardenable martensitic stainless steel A composition and method for the manufacture of products of a precipitation hardenable martensitic stainless steel, the composition of which comprises at least 0.5% by weight of Cr and at least 0.5% by weight of Mo wherein the sum of Cr, Ni and Fe exceeds... | 11/05/2002 |
| 6302974 | Method and apparatus for straightening turbine casings An austenitic rounding fixture is inserted into the horizontal joint of a turbine casing. The casing is then assembled and stress relief cycle is carried out, resulting in rerounding of the casing and relief of residual stresses. Since an austenitic mater... | 10/16/2001 |
| 6270596 | Process for producing high strength shaft Disclosed is a process for producing a shaft having improved strength without sacrificing machinability and cold workability. The process for producing a high strength shaft comprises the steps of: rolling or forging an alloy at a heating temperature of A... | 08/07/2001 |
| 6261392 | Method for manufacturing quenched thin-walled metal hollow casing by blow-moulding The invention concerns a method for manufacturing quenched metal hollow casings of steel by blow-moulding whereby a preheated hollow casing billet, preferably above austenitising temperature, is introduced into a blow-moulding tool (1) and moulded by bein... | 07/17/2001 |
| 6220306 | Low carbon martensite stainless steel plate A hot rolled martensite stainless steel plate which is excellent in formability and corrosion resistance has a chemical composition comprising, by mass %, 0.05% or less carbon, 10 to 15% chromium, 0 to 3% molybdenum, 0 to 0.75% titanium, and 1 to 8% nicke... | 04/24/2001 |
| 6217676 | Steel for oil well pipe with high corrosion resistance to wet carbon dioxide and seawater, and a seamless oil well pipe A steel for oil well pipe, which has excellent resistance to localized corrosion in CO2 environments and corrosion in seawater, and a seamless pipe made of the steel. The steel includes, in weight %, more than 0.10 to 0.30% C, 0.10 to 1.0% Si, ... | 04/17/2001 |
| 6193820 | Method for the thermal treatment of bushings, particularly for tracked vehicles and the like A method for the thermal treatment of bushings, particularly for tracked vehicles and the like, which provides for a first step, during which external quench hardening of the bushing is performed by heating through to approximately 7/10-10/10 of the thick... | 02/27/2001 |
| 6090230 | Method of cooling a steel pipe A method of cooling a martensitic steel pipe by cooling the inner and outer surface substantially equally while rotating the pipe around the axis, wherein the cooling rate is 8° C./s or higher. The inner surface is preferably cooled by passing water with... | 07/18/2000 |
| 5730812 | Method of manufacturing ejector pin sleeves A method is disclosed for manufacturing ejector sleeves from tubular stock. In particular, the method includes the following steps or operations: (a) cutting the tube stock to length, (b) enlarging a portion of the inside diameter of the sleeve to provide... | 03/24/1998 |
| 5605587 | Apparatus for magnetic conditioning of liquids and methods of making same Martensitic steel components of apparatus for magnetic conditioning of liquids which are subjected to cathodic reaction and degradation are treated prior to use to form a barrier of iron-chromium oxide and a uniform level of hardness throughout by heating... | 02/25/1997 |
| 5405459 | Production process for producing hollow steel tube of high strength A production process for producing a hollow steel tube of a high strength includes the steps of a tube preparation step of producing a seamless steel tube of a heavy thickness containing flaws of less than 0.25 mm in depth in an inner periphery thereof, a... | 04/11/1995 |
| 5173133 | Method for annealing stapler anvils An anvil member for use in a surgical stapler is annealed by localized heating, preferably induction heating. A shaped shielding means is used to cradle the anvil so as to expose the staple crimping portion of the anvil. The heating is performed so as to ... | 12/22/1992 |
| 4710245 | Method of making tubular units for the oil and gas industry A method of making tubing and pipes for conduction in the oil and gas industry or for use as drillpipes, wherein such tubing is connected at both ends with connector sleeves by means of welding, the welding seam being deburred thereafter. The steel used f... | 12/01/1987 |
| 4623401 | Heat treatment with an autoregulating heater Apparatus and process for selectively heat treating at least a portion of an article in the field with autoregulated heating. The autoregulated heating is provided by a heater including at least a first magnetic material disposed along the portion of the ... | 11/18/1986 |
| 4596282 | Heat treated high strength bimetallic cylinder A high strength bimetallic cylinder having a wear-resistant ferrous liner or inlay and capable of withstanding high stresses is provided by a heat treatment process wherein the cylinder steel is transformed into the austenitic phase, followed by rapidly c... | 06/24/1986 |
| 4497673 | Method of manufacturing double-walled tube A double-walled tube is produced by providing an inner core tube and an outer casing tube, wherein the outer diameter of the inner core tube is smaller than the inner diameter of the outer casing tube, with consideration of manufacturing tolerances and/or... | 02/05/1985 |
| 4421575 | Method of cooling steel pipes Quenched steel pipe is first held at a tempering temperature for a given period of time, then cooled relatively rapidly. While carrying the pipe in the direction of its length, cooling water is sprayed from outside onto its external surface at an average ... | 12/20/1983 |
| 4345952 | Method for the manufacture of tubes from steel having high ductility at low temperature Tubes and method of manufacturing tubes from alloyed steel adapted to be welded for underwater hydrocarbon pipelines having high ductility at low temperatures. A low carbon alloyed steel containing less than 0.08% carbon and with at the most 0.30% silicon... | 08/24/1982 |
| 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 |
| 4204892 | Heat-treating tubular steel sections A tubular steel section at a temperature, above Ac1, at which the steel contains at most 15% ferrite is subjected to martensitic and/or bainitic quenching followed by still air cooling. The effects of quenching are limited to a surface layer, i... | 05/27/1980 |
