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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 |
| 7371988 | Methods for extending the life of alloy steel welded joints by elimination and reduction of the HAZ In one embodiment, the present invention provides a method for welding together two metal pieces, comprising buttering a surface of a first metal piece with a first nickel-based filler metal at a thickness sufficient to isolate a heat-affected zone in the first meta... | 05/13/2008 |
| 7253380 | Induction heating of rail welds An apparatus (10) and method for preheating welds uses a centered induction plate (12) having preferably a plurality of induction coils (30, 32) to impart the generation of heat in the materials to be welded (14), being interactively cont... | 08/07/2007 |
| 7144040 | Bi-metallic structural component for vehicle frame assembly A vehicle body and frame assembly includes a pair of longitudinally extending side rails having a plurality of transverse cross members extending therebetween. The cross member is a multiple piece structure, including a central portion having a pair of end portions ... | 12/05/2006 |
| 7028404 | Apparatus and method of manufacturing a vehicle frame assembly An apparatus and method for manufacturing a vehicle frame component allow a preliminary heat treatment process to be performed in a relatively quick and easy manner so as to facilitate the subsequent performance of a bending or other deforming process. Initially, a ... | 04/18/2006 |
| 7012227 | Method for applying or repairing a coating on a substrate by inductive heating A method of applying or repairing a coating on a substrate by inductive heating. A susceptor element is applied on the coating and the element and the substrate are inductively energized to cause the substrate and the coating to be heated. The susceptor element is r... | 03/14/2006 |
| 7002117 | Heat-sealing device for packaging material Device for welding a moving packaging material (1) including a layer that can be heated by electromagnetic induction and a thermoplastic layer incorporating a welding zone (2) which lies in the direction of movement of the packaging material; the weldi... | 02/21/2006 |
| 6977361 | Molecular bonding of vehicle frame components using magnetic impulse welding techniques A method for manufacturing a vehicle frame assembly includes the initial steps of providing first and second structural components, disposing portions of the first and second structural components in an overlapping relationship, and generating an electromagnetic fie... | 12/20/2005 |
| 6568062 | Methods of removing self-piercing rivets set into a workpiece and devices for implementing the methods A through-hole self-piercing rivet 30 is assembled with two metal plates 50 and 52 to retain the plates together as a workpiece 54. When the rivet 30 is to be removed, a pin, such as a contact pin 56, is attached to the rivet by fusion, or a pin, such as ... | 05/27/2003 |
| 6477774 | Method of manufacturing a vehicle frame assembly An apparatus and method are provided for initially performing a heat treatment process on a closed channel structural member to facilitate the subsequent performance of a magnetic pulse welding process so as to manufacture a vehicle frame component or a p... | 11/12/2002 |
| 6420686 | Apparatus for joining metal components An apparatus has a single workstation for joining high strength metal components by electromagnetic forming techniques. One of the metal components carries high loads or is subjected to combined stresses and strains, thus requiring that it be relatively s... | 07/16/2002 |
| 6329079 | Lined alloy tubing and process for manufacturing the same A tube for a cracker unit in which ethylene is produced withstands, without oxidizing or losing its strength, the elevated temperatures required to effect cracking, yet retards coking. The tube has a shell formed from stainless steel or high nickel alloy ... | 12/11/2001 |
| 5158227 | Process of making seamless metal tube A process for the continuous manufacture of seamless tube by confining a selected length of metal strip in the form of a tube and with at least two longitudinal abutting edges and completely melting a selected length of such tubular form to form a seamles... | 10/27/1992 |
| 4881590 | Apparatus for cooling, storing and inductively reheating complete meals The apparatus consists of a refrigerator (10) into which it is possible to insert trays (27, 28, 29) on which various tableware containing different foods and/or drinks are placed. The refrigerator contains, in addition to the cooling unit (13), a high-fr... | 11/21/1989 |
| 4845326 | Apparatus and method for electrically butt welding of skelp edge faces which have been preheated Method and apparatus for butt welding the edge faces of metal skelp which has been heated to a temperature of at least 1000° F. but below the welding temperature of the metal of the skelp. The skelp is continuously advanced through a furnace in which the... | 07/04/1989 |
| 4822971 | Method and device for soldering or brazing A device and method for joining details by soldering or brazing preferably pipe-shaped articles by feeding solder through a nozzle to a tool and heating the tool by inductive heating to warm up the solder to a predetermined temperature for effecting the s... | 04/18/1989 |
| 4619717 | Heating magnetic metal workpieces Method and apparatus for heating a billet of magnetic metal material to a forging or other elevated processing temperature above the Curie point temperature of the workpiece metal by first inductively preheating the billet in an induction heating coil to ... | 10/28/1986 |
| 4150274 | Method for lap welding of skelps and device for effecting same A method is proposed for lap welding of tubes, comprising the steps of preheating the tubes by passing an electric current radially therebetween simultaneously along the entire circumference of the welded joint and subsequent compression of the welded sur... | 04/17/1979 |
