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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 |
| 6921444 | Method of locally heating a part to reduce strength and increase ductility for subsequent manufacturing operation A method of performing manufacturing operations on a workpiece made of a high strength alloy is disclosed in which a local area of a workpiece is heated to micro-structurally soften the local area. The local area of the workpiece becomes softened and more ductile. A... | 07/26/2005 |
| 6434949 | Method and treatment device for the cooling of highly heated metal components A method for cooling metal components highly heated in a chamber includes effecting a uniform cooling of an entire metal component. The metal component has regions each with a given mass, some of the regions having a larger mass than others of the regions... | 08/20/2002 |
| 6074496 | High-strength oil-tempered steel wire with excellent spring fabrication property and method for producing the same A high-strength oil-tempered steel wire with excellent spring fabrication property that is made of spring low-alloy steel, having a decarburized layer of reduced hardness extending to a depth of not greater than 200 μm from the wire surface, a wire surfa... | 06/13/2000 |
| 5798007 | Process and apparatus for the continuous heat treatment of a metal strip travelling in a different atmosphere Process for the continuous heat treatment of a metal strip, the latter travelling through a furnace, which is thermally insulated, and in a protective atmosphere; the said furnace consisting of at least one section, for heating, for temperature hold and f... | 08/25/1998 |
| 5614039 | Argon employing heat treating process Method for heat treating a metal in which argon gas is selectively injected into the cooling zone of a heat treating apparatus when the temperature therein is above the level at which significant nitriding will occur.... | 03/25/1997 |
| 5248354 | Method for the preparation of a body of austempered ductile cast iron A unique method is proposed for the preparation of a body of an austempered ductile cast iron having a gradient of the mechanical property within the body by subjecting a body of a nodular graphite cast iron to an isothermal transformation treatment for a... | 09/28/1993 |
| 5246510 | Method for producing a selectively surface hardened cast iron part A method for producing a selectively surface hardened cast iron part includes the steps of (a) heating the part to a desired austempering temperature of between about 450° F. and about 800° F. until the entire cast iron part possesses the desired austem... | 09/21/1993 |
| 5213638 | Surface modified copper alloys There is provided a composite copper alloy having a copper alloy core and a modified surface layer containing a nitride or carbide film. Alternatively, the modified surface layer may contain a carbo-nitride film. The alloy is formed by reacting a copper a... | 05/25/1993 |
| 4596615 | Method of cooling hot steel plates Hot steel plate as hot-rolled is passed forward longitudinally through pairs of top and bottom rollers disposed in the direction of the plate travel. The steel plate is cooled with water supplied to its top and bottom surfaces from the nozzles on a plural... | 06/24/1986 |
| 4429245 | External rotor production for synchronous hysteresis motor An external rotor electric synchronous hysteresis motor. A stator provides a rotating electromagnetic field. The hysteresis ring is formed by a deep-drawn rotation symmetrical steel rotor pot having a jacket part for surrounding the stator coaxially and h... | 01/31/1984 |
| 4405380 | High strength, low alloy steel with improved surface and mechanical properties High strength, low alloy steel is produced, preferably as a hot rolled article (e.g. strip), to have a rimmed skin of essentially ferrite while having a main body or core which is aluminum-killed and comprises, for superior mechanical properties including... | 09/20/1983 |
| 4323404 | Method for providing single piece with plural different mechanical characteristics A method for producing a single solid metal work piece having different mechanical characteristics in different sections. A groove is cut in the piece between each section. A partitioning wall is inserted in the groove with the remainder of the groove fil... | 04/06/1982 |
| 4313771 | Laser hardening of steel work pieces A method of hardening the surface of steel work pieces is disclosed wherein the work piece is first treated with a solution to cause the blackening thereof and subsequently subjected to a laser beam for a time sufficient to raise the surface temperature t... | 02/02/1982 |
| 4268246 | Method and apparatus for metal object heat treatment Apparatus comprising a metal shell enclosing a spaced adapted to be heated, low heat retention, thermal shock resistant insulation on one substantially entire surface of the metal shell, a heater to heat the space enclosed by the metal shell, a vent for h... | 05/19/1981 |
| 4035202 | Annealing treatment for controlling warhead fragmentation size distribution Methods for controlling the sizes and shapes of fragments produced by warhead casings are disclosed.... | 07/12/1977 |
