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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7562807 | Weld filler for welding dissimilar alloy steels and method of using same Accordingly, the present invention provides a weld filler composition for joining different alloy steel pieces with substantially different chromium content, such as joining low alloy ferritic steel to high alloy ferritic steel, low alloy ferritic steel to austeniti... | 07/21/2009 |
| 7325717 | Welding material and a method of producing welded joint In the present invention, an iron based alloy which contains by mass %: 0.20% or less of C; 6.0 to 16.0% of Cr; 6.0 to 16.0% of Ni and whose martensitic transformation starting temperature (Ms point temperature) is in the range of 0-170° C., inclusive of 0° C. and... | 02/05/2008 |
| 7232053 | Seam-welded air hardenable steel constructions The present invention provides seam-welded, air hardenable steel tubes, methods of manufacturing seam-welded air hardenable steel tubes, tube mills for practicing such methods and applications for using seam-welded, air hardenable steel tubing of the present inventi... | 06/19/2007 |
| 7010987 | Non-destructive method of detecting defects in braze-repaired cracks It is disclosed a method of detecting and quantifying subsurface defects (10) in an article (1) made of high strength non magnetisable materials after the use in a high temperature environment. A crack (8) or gap on a surface (7) of the a... | 03/14/2006 |
| 6919534 | Welded joints in high strength, heat resistant steels, and a welding method therefor A welding method and a welded joint for high strength, temperature resistant steels produce the same strength as the base metal in the welded joint, thereby resolving strength problems in the heat affected area by making a simple change to the welding method. Additi... | 07/19/2005 |
| 6872466 | Method and apparatus for repairing screens A method of plugging an area of damaged mesh in a sifting screen. The method is applicable to screens in which woven wire mesh is stretched, tensioned and secured over a supporting frame containing a plurality of windows and in which local damage to the mesh is in a... | 03/29/2005 |
| 6848609 | Method of making finned tubes In a method of making finned tubes as components of air-cooled systems or condensers, a sheet metal strip of aluminum is first shaped into a waved finned structure with plural fins in parallel relationship and arched ends for connecting the fins, thereby defining cr... | 02/01/2005 |
| 6793119 | Process for welding duplex steel Process for welding duplex steel in the presence of a shielding gas without use being made of welding aids and with nitrogen being added to the shielding gas and with an austenitic-ferritic duplex steel with a chromium content of between 28 and 35 wt. % and a nickel... | 09/21/2004 |
| 6749002 | Method of spray joining articles The present invention relates to a method of providing a spray formed composite article. The method comprises providing a first article. The first article is a spray formed article. A second article is located adjacent the first article. Metallic particles are spray... | 06/15/2004 |
| 6715667 | Method of joining steel tubes with aluminum ribs In a method for joining a steel tube with an aluminum rib, a zinc-aluminum alloy layer, having an aluminum content of 0.5% by wt. to 20% by wt., is applied to the surface of the steel tube or the aluminum rib, and then a fluxing agent in the form of cesium-aluminum ... | 04/06/2004 |
| 6713190 | Reinforcement for a moulded filtering screen support frame A method is described for making a reinforcing wire frame for embedding in a moulded polymer support frame over which woven wire cloth is to be stretched and secured to form a sifting screen. The method involves locating lengths of cut wire substantially equally spa... | 03/30/2004 |
| 6686061 | Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom A weldable structural steel product having fine complex precipitates of TiN and CuS is provided which contains, in terms of percent by weight, 0.03 to 0.17%C, 0.01 to 0.05% Si, 0.4 to 2.0% Mn, 0.005 to 0.2% Ti, 0.0005 to 0.1% Al, 0.008 to 0.030% N, 0.0003... | 02/03/2004 |
| 6589671 | Method for joining a cast part and a case-hardened steel part and component manufactured according to said method A method for joining a first part to a second part wherein the first part comprises machine cast iron and the second part comprises case-hardened steel comprises abrading a surface on each of the parts which are to be welded together with a groove, fittin... | 07/08/2003 |
| 6565678 | Weld metals with superior low temperature toughness for joining high strength, low alloy steels Weld metals suitable for joining high strength, low alloy steels are provided. These weld metals have microstructures of acicular ferrite interspersed in a hard constituent, such as lath martensite, yield strengths of at least about 690 MPa (100 ksi), and... | 05/20/2003 |
| 6514631 | Heating furnace tube and method of manufacturing the same A heating furnace tube, a method of using the same and a method of manufacturing the same which have been developed with a view to eliminating inconveniences occurring when a carbon-containing fluid is made to flow in the heating furnace tube. The heating... | 02/04/2003 |
| 6410165 | Crack resistant weld A welding method that enables the joining of at least two dissimilar, metallic alloys to form a weld that is free of cracks is disclosed. The method incorporates a pure (99.00% minimum by weight) nickel fill-wire, integrally assembled into the joint betwe... | 06/25/2002 |
| 6378761 | Process for joining components made from case-hardened steel to components made from cast iron A process for joining or welding components made from case-hardened steel to one another or to components made from cast iron uses a nickel-containing filler. The components are not prepared for the welding operation, i.e., the components do not undergo a... | 04/30/2002 |
| 6360936 | Method of manufacturing a composite sheet steel, especially for the protection of vehicles against shots In a method of manufacturing composite sheet steel of maraging steel, wherein the composite sheet steel comprises an outer layer and an inner layer, wherein the outer layer is harder than the inner layer and the inner layer is more tenacious than the oute... | 03/26/2002 |
| 6209777 | Fusion welding method for binding surfaces of two metals A fusion welding method for binding the surfaces of two metals including the steps of (a) coating a layer of a powdery media capable of forming eutectics with both the two metals for lowering the melting points of the two metals, onto at least one of the ... | 04/03/2001 |
| 6193145 | Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof An end portion of each of two parts is machined and the machined end portion of the parts are arranged in facing positions to form a welding bevel extending in a longitudinal direction between the parts, whereafter a filler metal is deposited into the wel... | 02/27/2001 |
| 6096212 | Fluid filter and method of making A fluid filter assembly and method of making is disclosed for filtering a fluid. The fluid filter assembly comprises a first filter component including a filter media comprising a matrix of metallic fibers. A second filter component includes a filter supp... | 08/01/2000 |
| 6059177 | Welding method and welding material A welding method for two members adapted to be welded and formed of a low-alloy steel for structural purposes causing the weld metal to develop martensite transformation during cooling after welding, so that the weld metal becomes expanded to a greater de... | 05/09/2000 |
| 6024276 | Method for bonding dual-phase stainless steel The method provides a diffusion-bonding of dual-phase stainless steel material having excellent strength and corrosion. The method includes: cold-working a material to be bonded so as to enhance the proof stress; inserting into the bonding portion an inse... | 02/15/2000 |
| 5964964 | Welded joint of high fatigue strength A propagation speed of a fatigue crack in a HAZ is restricted, and a fatigue strength of an as-welded joint can be improved, by limiting an area ratio of a ferrite micro-structure in the HAZ of the welded joint to 20 to 100% and the balance to one of a ba... | 10/12/1999 |
| 5759300 | Liquid-phase diffusion bonding alloy foils for joining heat-resistant metals in oxidizing atmospheres Alloy foils for liquid-phase diffusion bonding of heat-resisting metals in an oxidizing atmosphere comprise 6.0 to 15.0 percent silicon, 0.1 to 2.0 percent manganese, 0.50 to 30.0 percent chromium, 0.10 to 5.0 percent molybdenum, 0.50 to 10.0 percent vana... | 06/02/1998 |
| 5683822 | Liquid-phase diffusion bonding alloy foils for joining heat-resistant metals in oxidizing atmospheres Alloy foils for liquid-phase diffusion bonding of heat-resisting metals in an oxidizing atmosphere comprise 6.0 to 15.0 percent silicon, 0.1 to 2.0 percent manganese, 0.50 to 30.0 percent chromium, 0.10 to 5.0 percent molybdenum, 0.50 to 10.0 percent vana... | 11/04/1997 |
| 5628449 | Method of welding a carbon steel and an austenitic stainless steel together and resultant structure Method of welding a carbon steel and a austenitic stainless steel involves using high density energy beam like a laser beam or electron beam. Welding using high density energy beam is effective to obtain a high precision welding. For the purpose of obtain... | 05/13/1997 |
| 5556561 | Method of forming a weld joint of austenitic stainless steel/ferritic steel A method of forming a weld joint between an austenitic stainless steel and a ferritic steel. The ferritic steel contains 0.03 to 0.12% carbon, 0.70% or less silicon, 0.10 to 1.50% manganese, 0.030% or less phosphorus, 0.015% or less sulphur, 1.50 to 3.50%... | 09/17/1996 |
| 5538177 | Method for welding metallic alloy parts Metallic alloy parts which contain easily oxidizable metallic elements, are welded without solder by applying a non-deliquescent flux thereto at a negligible amount and subjecting them to a high temperature under an inert and non-explosive atmosphere.... | 07/23/1996 |
| 5368223 | Pipe welding process using a metallic insert for improved corrosion resistance of the welded zone Avoidance of the corrosion initiation sites consisting of Mn particles deposited on the TiG welded inner tube surface is achieved through suppression of emission of manganese fumes by addition of a protective non corrosive metallic layer. The latter melts... | 11/29/1994 |
| 5348212 | Welding method for rotatable shafts An improved welding method is provided for repairing broken rotors. The welding method preferably employs a 2.25Cr-1.0Mo-0.3V-type filler metal, preferably deposited using a narrow groove welding technique. The broken pieces are aligned end to end. A narr... | 09/20/1994 |
| 5246160 | Method for roll-bonding of high-speed steel to mild steel, and bar produced thereby A method of manufacture of a bar by roll-bonding of medium-alloy or high-alloy steel to mild steel involves the use of a tip composed of alloyed steel obtained by powder metallurgy, in which the compacting gangue of the tip has been retained so as to form... | 09/21/1993 |
| 5240168 | Method for making a composite to carbon steel joint An improved method for making a composite tube (10) to a carbon steel tube (16) joint or a composite tube (10) to a carbon steel header (50) joint is achieved by specially preparing the composite tube (10) by removing the cladding (12) from one end (24) t... | 08/31/1993 |
| 5205466 | Manufacturing method of austenitic stainless steel self-tapping and self-drilling screw This invention is a manufacturing method of Austenitic stainless steel self-tapping and self-drilling screw. It uses low carbon steel or low carbon alloy steel and forges or cuts it into a round rod with a shoulder, non-threaded bolt, and drilling end por... | 04/27/1993 |
| 5183198 | Method of producing clad steel plate having good low-temperature toughness A method of producing clad steel plate comprises the steps of preparing an assembly slab by superposing a stainless-steel or nickel alloy cladding material onto base metal consisting essentially of, by weight, 0.020 to 0.06% carbon, 0.5% or less silicon, ... | 02/02/1993 |
| 5178362 | Electromagnetically actuatable valve In electromagnetically actuatable valves having a core, surrounded by a magnet coil, and an armature that acts upon a valve closing body by means of a connecting tube, the connection between the connecting tube and the hard valve closing body is embodied ... | 01/12/1993 |
| 5170932 | Method for connection of railway point components consisting of cast hard manganese steel or manganese steel rails to a rail made from carbon steel In a method for connection of railway point components (1) such as, for example, frogs consisting of austenitic cast hard manganese steel, or manganese steel rails, to rails (2) made from carbon steel, with the utilization of an intermediate piece (3) mad... | 12/15/1992 |
| 5152452 | Pressure vessel and method A sheet of work-hardenable, non-heat-treatable, corrosion-resistant steel is cold rolled into a tube (12) and welded (10). The cold rolling strengthens the material. The welding causes the weld area (10) to revert to its annealed condition, but the ends (... | 10/06/1992 |
| 5118028 | Diffusion bonding method for corrosion-resistant materials A diffusion bonding method for corrosion resistant materials comprises: disposing an insert material having a melting point of at most 1150 degrees C. and a thickness of 10-80 micrometers between the bonding interfaces of two members to be joined, the ins... | 06/02/1992 |
| 4986461 | Method of constructing tools intended for use in work carried out with the aid of shock-wave generating energy sources When working material with the aid of shock-wave generating energy sources, the problem of tool fatigue occurs. This problem is reduced to a great extent by means of the inventive method, which prevents the occurrence of reflected tensile-force waves. This is ... | 01/22/1991 |
