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| Number | Title | Issue Date |
| 7954221 | Electromagnetic mechanical pulse forming of fluid joints for high-pressure applications An electromagnetically formed fluid circuit joint (150) includes a tubular conduit (58) that has an outer surface (154) with a groove (72). A hollow fitting (56) is mechanically separate from and received over the tubular conduit (... | 06/07/2011 |
| 7941907 | Method for manufacture of shaped tubular part A method is provided for manufacturing a shaped tubular part from a first tube and second tube. The end of the first tube is inserted into the end of the second tube to provide a region of overlapping tube walls. An induction coil is placed around the outer surface ... | 05/17/2011 |
| 7536765 | Method of fastening a cross-member to an arm and a semi-rigid axle made by the method Process for fabricating an axle that includes a cross-member and arms which are assembled to extremities of the cross-member, wherein the process includes forming a cross-member, forming at least one arm, arranging the cross-member and the at least one arm in a fast... | 05/26/2009 |
| 7513025 | Magnetic field concentrator for electromagnetic forming A magnetic forming system (10) for creating a fluid circuit joint between a tube and a fitting includes an induction coil (12). The induction coil (12) may form a first stage electromagnetic current. A field concentrator (132) may focus t... | 04/07/2009 |
| 7441335 | Methods of electromagnetic forming aluminum alloy wheel for automotive use A metal mold for electromagnetic forming, with the inner peripheral face thereof, serving as a forming face, is disposed on the outer peripheral side of a columnar workpiece, and a coil for electromagnetic forming is disposed on the inner peripheral side of the colu... | 10/28/2008 |
| 7364062 | Magnetic pulse welding of steel propshafts A method of magnetically welding an end fitting to a metal tube includes assembling a driver ring over an end of the tube and inserting a length of the end fitting into a bore of the tube. An overlap region of the tube, the driver ring and the cylinder are encompass... | 04/29/2008 |
| 7363945 | Low chamfer angled torque tube end fitting with elongated overflow groove A method of forming a torque-transmitting coupling (193) includes forming at least one fitting (192) having a tube conforming area (200). The forming area (200) includes a material overflow groove (194) and multiple flat surfaces (... | 04/29/2008 |
| 7343659 | Method of making a medical device A method of making a medical device includes compressing a prosthesis, e.g., a therapeutic agent-carrying stent or stent-graft, to a catheter without contacting an outer surface of the prosthesis, e.g., by electromagnetically compressing the prosthesis. ... | 03/18/2008 |
| 7335857 | Glow plug including a rod-shaped heating element attached in a tubular carrier element by having been magnetically deformed A rod-shaped heating element with a tubular carrier element attached to a cylindrical carrier ring and to the rod-shaped heating element using a magnetic forming process, the carrier ring and the rod-shaped heating element being within the tubular carrier element wi... | 02/26/2008 |
| 7290318 | Electromagnetic flanging and hemming apparatus and method Apparatus and methods are disclosed for applying electromagnetic force (EMF) to flanging and hemming metal panels to form a hemmed panel assembly. First and second apparatus and method steps use a translating EMF coil to flange a sheet and to finish a hem by progres... | 11/06/2007 |
| 7278195 | Method for producing a coated medical support device Method for producing a coated medical support device capable of insertion into the body, the method including the procedures of applying a coating to a section of a work-piece, positioning the work-piece in the vicinity of an electromagnetic field generator, and sub... | 10/09/2007 |
| 7263757 | Electromagnetic trimming, flanging and hemming apparatus and method Electromagnetic (EMF) trimming, flanging and hemming steps are performed at a single workstation in a combined fixture designed to form a hemmed panel assembly, such as a vehicle closure panel. Two or more formed sheets, outer and inner panels, are positioned togeth... | 09/04/2007 |
| 7256373 | Apparatus and method for manufacture of a driveshaft by a pulsed magnetic force process An apparatus (30) and method for forming of a vehicle's driveshaft (32) is provided which makes use of a PMF process. The coil device used in the PMF apparatus is assembled around the shaft from two or more coil sections (40, 41, 43; 42, 44, 45)... | 08/14/2007 |
| 7240607 | Removable end plug A pressure assembly including a cylinder, an end plug and a split ring band. The cylinder has an end, an inner surface and an outer surface. The end plug is inserted into the end of the cylinder, the end plug having an outer surface that is in partial contact with t... | 07/10/2007 |
| 7207102 | Method for forming permanent magnets with different polarities for use in microelectromechanical devices Methods are provided for forming a plurality of permanent magnets with two different north-south magnetic pole alignments for use in microelectromechanical (MEM) devices. These methods are based on initially magnetizing the permanent magnets all in the same directio... | 04/24/2007 |
| 7181846 | Method of manufacturing a combined driveshaft tube and yoke assembly A method for manufacturing a combined driveshaft tube and yoke assembly includes the initial step of orienting a first component having a first wall thickness and a second component having a second wall thickness to define an overlap region. The first and second com... | 02/27/2007 |
| 7165429 | Device for and method of electromagnetic high energy pulse deformation of workpieces, in particular metal sheets of electrically conductive material A device for electromagnetic high energy pulse deformation of workpieces of an electrically conductive material has a deformation tool including a coil carrier and at least two partial coils arranged on the coil carrier, at least one surge current generator to which... | 01/23/2007 |
| 7162910 | Hybrid metal forming system and method A hybrid metal forming system includes a die cavity defined by a first die and a second die and a press adapted to apply a static pressure over the first die to deform a workpiece against the second die. The hybrid forming system also includes a dynamic loading syst... | 01/16/2007 |
| 7146700 | Method of manufacturing a pressure damper for a fluid conduit A pressure damper for use with a fluid conduit, such a fuel rail in a vehicular fuel delivery system, is manufactured by deforming a workpiece, such as by stamping, hydroforming, or magnetic pulse forming, to have an enlarged portion of predetermined size and reduce... | 12/12/2006 |
| 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 |
| 7127816 | Method of permanently joining first and second metallic components A pair of metallic components, such as a pair of metallic structural components for a vehicular body and frame assembly, are permanently joined using a magnetic pulse welding process. Initially, a first metallic component is provided having a first aperture that is ... | 10/31/2006 |
| 7080437 | Method of manufacturing an axially collapsible driveshaft assembly To manufacture an axially collapsible driveshaft assembly, first and second tubular members are disposed in an axially overlapping relationship. Central portions of the concentric tubular members are then deformed into conformance with a die cavity having a non-circ... | 07/25/2006 |
| 7080436 | Method of manufacturing an axially collapsible driveshaft A method for manufacturing a driveshaft for use in a vehicle drive train system that is axially collapsible in the event of a collision to absorb energy. A workpiece, such as a hollow cylindrical tube, is deformed by hydroforming to provide an axial collapse initiat... | 07/25/2006 |
| 7076981 | Electromagnetic formation of fuel cell plates A scheme for electromagnetic formation of fuel cell plates is provided. In accordance with one embodiment of the present invention, a method of forming a flow field plate is provided where an electromagnetic actuator is arranged opposite a profiled surface of a die ... | 07/18/2006 |
| 7069756 | Electromagnetic metal forming A scheme for deforming a sheet of material is provided. In accordance with one embodiment of the present invention, an apparatus for deforming a sheet of material is provided. The apparatus comprises a die portion, an electromagnetic actuator, and a conductive frame... | 07/04/2006 |
| 7051421 | Method of fabricating a rotor An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor. ... | 05/30/2006 |
| 7026585 | Method for monitoring the performance of a magnetic pulse forming or welding process The performance of a magnetic pulse forming or welding process is monitored by positioning a deformation member relative to an inductor coil of the apparatus, then energizing the inductor coil to exert a force thereon. The deformation member can be a plastically def... | 04/11/2006 |
| 7025245 | Magnetic welder A magnetic welding and joining device is provided. The device has a separable induction coil that can be selectively coupled to provide an induction coil to be positioned around workpieces that are to be magnetically welded or joined. ... | 04/11/2006 |
| 7015435 | Method of magnetic pulse welding an end fitting to a driveshaft tube of a vehicular driveshaft A method for securing components of a vehicular driveshaft includes disposing a neck of an end fitting into the open end of a driveshaft tube. The end fitting is held with respect to the driveshaft tube so that an annular gap is formed between the neck and the drive... | 03/21/2006 |
| 7007362 | Method of forming a slip joint A method of forming a slip joint includes providing a forming mandrel having a plurality of axially extending external splines, placing an inner tube circumferentially about the mandrel, and applying radially inward pressure on the inner tube to deform the inner tub... | 03/07/2006 |
| 6990840 | Conjoining apparatus using electromagnetic forming A conjoining apparatus using electromagnetic forming includes a field shaper for concentrating a magnetic field to a conjoining working object, a coil for generating and applying the magnetic field to the field shaper such that the field shaper can form a reactive f... | 01/31/2006 |
| 6932118 | Low chamfer angled torque tube end fitting metal A method of forming a torque tube (64) is provided. The method includes forming a fitting (80) having an elongated tube conforming area (88). The conforming area (88) includes chamfer areas (82) having upper surfaces (90), l... | 08/23/2005 |
| 6891137 | Method of magnetic pulse welding an end fitting to a driveshaft tube of a vehicular driveshaft A method for securing components of a vehicular driveshaft includes disposing a neck of an end fitting into the open end of a driveshaft tube. The end fitting is held with respect to the driveshaft tube so that an annular gap is formed between the neck and the drive... | 05/10/2005 |
| 6857185 | Method for electromagnetically joining tubes to sheets in a tubular heat transfer system A system and method for expanding, joining or securing a plurality of tubes by electromagnetic expansion to a plurality of sheets in a tubular heat transfer system. The system and method involve the automatic sensing and positioning of a electromagnetic coil in oper... | 02/22/2005 |
| 6813818 | Method for joining vehicle frame components A method for joining vehicle components together to form a vehicle frame assembly where the components are formed from dissimilar materials such as metallic and non-metallic materials. A composite body mount bracket may be attached to a structural component of a veh... | 11/09/2004 |
| 6751994 | Method and apparatus for forming a structural member A method of forming a structural member includes hydroforming the blank to form a hydroformed member and finishing the hydroformed member by positioning the wall of the hydroformed member between a die surface and an electromagnetic discharging element having a non-... | 06/22/2004 |
| 6708542 | Electromagnetic and/or electrohydraulic forming of a metal plate A metal plate is formed in a process comprising cutting, perforating or both, by forcing the plate, by means of an abrupt and intense force towards a mold having openings or boundaries defined by wall sections which extend essentially normal to the forming plane of ... | 03/23/2004 |
| 6703594 | Method of magnetic pulse welding an end fitting to a driveshaft tube of a vehicular driveshaft A method for securing components of a vehicular driveshaft includes disposing a neck of an end fitting into the open end of a driveshaft tube. The end fitting is held with respect to the driveshaft tube so that an annular gap is formed between the neck an... | 03/09/2004 |
| 6688423 | Fluid-borne noise suppression A method of securing a restrictor, having an open hollow cylindrical end shell, to a spirally wound tuning cable having an end disposed in the shell, wherein the shell is magnetically deformed radially inwardly to grip and conform to the outer surface of ... | 02/10/2004 |
| 6684483 | Method of fabricating a rotor for an electric traction motor A method of fabricating a rotor for an electric traction motor including the steps of forming cavities in the rotor, injecting magnetic material in a portion of the cavities, injecting nonmagnetic material in a portion of the cavities, and post-magnetizin... | 02/03/2004 |
