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| Number | Title | Issue Date |
| 7390995 | Image forming apparatus, fixing device and image heater having an adjustable exciting member An image forming apparatus includes a fixing device which fixes a toner image on a recording medium. The fixing device includes a heating device. The heating device includes a heat-generating member, an exciting member, and a changing device. The heat-generating mem... | 06/24/2008 |
| 7315011 | Magnetic heating device Magnetic heating device includes energy feeding elements, control unit and at least two magnetic field generators, where each magnetic field generator has two free ends. All free ends of the magnetic field generators define a plane and the control unit is adapted to... | 01/01/2008 |
| 7202450 | Induction coil design for portable induction heating tool A portable induction tool is provided for soldering or brazing sections of metal pipe together. A work coil head (with induction coil) is U-shaped, allowing placement of the head around lengths of pipe, heating a susceptor (e.g., the pipe) to form a joint, and then ... | 04/10/2007 |
| 6963056 | Induction heating of a workpiece An apparatus and process are provided for controlling the cross sectional temperature profile of a continuously moving workpiece with an induction coil assembly that provides for a combination of longitudinal and transverse magnetic flux field heating of the workpie... | 11/08/2005 |
| 6940056 | Induction heat treatment method and coil and article treated thereby A method of induction heat treatment of articles having curved outer surfaces, such as differential housings. The method employs a semi-rectangular induction coil that is adapted to provide a plurality of lateral magnetic fields that are used to induce currents in, ... | 09/06/2005 |
| 6875966 | Portable induction heating tool for soldering pipes A portable induction tool is provided for soldering or brazing sections of metal pipe together. A work coil head (with induction coil) is U-shaped, allowing placement of the head around lengths of pipe, heating a susceptor (e.g., the pipe) to form a joint, and then ... | 04/05/2005 |
| 6864419 | Electromagnetic shield for an induction heating coil An apparatus and process are provided for reducing the electromagnetic field intensity in selected regions for a field produced when ac current flows through one or more induction coils through which a workpiece moves for induction heating of the workpiece. The elec... | 03/08/2005 |
| 6677561 | Coil for induction heating of a strip or another elongate metal workpiece The invention relates to a coil to be used in transverse flux induction heating of an object in the form of a metal strip or another elongate metal workpiece. The coil contains at least one pair of loops of conductors, which are non-symmetrically position... | 01/13/2004 |
| 6576878 | Transverse flux induction heating apparatus A transverse flux induction heating apparatus adjusts the level of edge heating of a workpiece by changing the pole pitch of induction coils forming the apparatus to provide a more uniform transverse temperature of the workpiece. Changes in the operating ... | 06/10/2003 |
| 6570141 | Transverse flux induction heating of conductive strip In transverse flux induction heating of electrically conductive strip, conductors that cross the strip width are stacked, or connected, such that a multiple of the induced current flows across the strip width as compared to that which flows along the stri... | 05/27/2003 |
| 6498325 | Modular induction heated cooking hob having reduced radiation and a method of making the same A modular induction heated cooking hob inductor and hob are disclosed. The inductor is a wound conductor having turns at substantially right angles to previous turns. Parallel turns of the conductor are separated by a layer of insulation adjacent to the t... | 12/24/2002 |
| 6498327 | Method for inductive heating and monitoring A method for transverse flux induction heating using a heating machine including an iron core, that essentially has a U-shape with an opening facing downwards. The legs lie in contact with downwards facing displaceable core jaws. These are so arranged tha... | 12/24/2002 |
| 6399928 | Device for hardening cylindrical bearing points of a shaft An apparatus for hardening cylindrical bearing faces (L) of a shaft (K), wherein at least one of the transitional radii (R1, R2) to the adjoining shaft portions (W1, W2) is constructed recessed, includes a pair of inductive heating units (1, 2), which are... | 06/04/2002 |
| 6365883 | U-shaped adhesive bonding apparatus An induction heating coil for joining structural members by heating a bonding material disposed between the structural members includes first and second elements with complementary shapes spaced equidistantly apart along the length of opposing surfaces of... | 04/02/2002 |
| 6310333 | Induction heating method for manifold in hot runner mold In an induction heating method for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mol... | 10/30/2001 |
| 6300608 | Induction heating coil and induction heating device using the induction heating coil There are provided an induction heating coil for carrying out high frequency induction heating (heating during movement) of a hot rolled steel or the like by surrounding the hot rolled steel or the like which is placed on a plurality of conveying rollers ... | 10/09/2001 |
| 6288376 | Method and apparatus for melting a bump by induction heating According to a method of melting a bump improved to omit processes of flux application, reflow, cleaning and drying, a bump formed on a substrate is heated and melted by electromagnetic induction using an induction heating coil in ambient of low oxygen co... | 09/11/2001 |
| 6274857 | Induction heat treatment of complex-shaped workpieces A multi-station induction heat treatment system is used for heat treating metal workpieces that have multiple generally cylindrical components whose axes are parallel to and offset from a common workpiece axis. The heat treatment system includes heat trea... | 08/14/2001 |
| 6160248 | Device for electro-inductive hardening of bearing surfaces and transition radii in crankshafts The invention relates to a device for simultaneous peripheral electro-inductive hardening of bearing surfaces (2A, 3A) and transition A radii in crankshafts (1), comprising lifting pins (2, 3) arranged directly adjacent to each other and one behind the ot... | 12/12/2000 |
| 6140625 | Device for rotating and simultaneous hardening by electric induction The invention relates to the rotary and simultaneous electroinductive hardening of the bearing surfaces (2a; 3a) of crank pins (2; 3) of a crankshaft (1) disposed immediately one beside the other and offset in relation to one another in the axial directio... | 10/31/2000 |
| 6011246 | Induction-heating device for surface treating the teeth of a mechanical part An induction heating device for surface treating the teeth (11) of a mechanical part on which each tooth (111) has a projecting tip (111s) and a tooth root linking the tooth to an adjacent tooth, wherein an in duction coil (12, 12') is spaced from the too... | 01/04/2000 |
| 5837976 | Strip heating coil apparatus with series power supplies An induction heating apparatus for heating continuous strip material. In a first embodiment, two coil sections each having a gap at one end for the strip material to pass edgewise into and out of the apparatus for heating wherein the coil sections are ada... | 11/17/1998 |
| 5680693 | Method of making an inductor An inductor for inductively heating bearing surfaces of a crankshaft is machined from a block of copper to provide parallel, closely spaced and integrally joined inductor block portions having machined coolant passages therein. The machined inductor is ri... | 10/28/1997 |
| 5550354 | High-frequency induction heating coil A high-frequency induction heating coil is provided which enables a semiconductor single crystal in the process of growth to incorporate impurities uniformly therein, permits ready adjustment of the heat distributing property, and precludes the discharge ... | 08/27/1996 |
| 5523546 | Apparatus and method of inductively heating a workpiece with a slender bone An inductive device can heat a body having a slender bore, with an inductor assembly that includes a coolant system. The assembly has a parallel pair of elongate inductors sized to fit deep inside the bore. Each of these inductors has a distal end and a p... | 06/04/1996 |
| 5495094 | Continuous strip material induction heating coil An induction heating coil apparatus for heating continuous strip material comprising at least a pair of generally rectangular full-turn coils arranged in parallel relation and separated from each other to permit continuous strip material to pass axially t... | 02/27/1996 |
| 5451749 | Inductor for inductively heating crank shafts An inductor for inductively heating bearing surfaces of a crankshaft is machined from a block of copper to provide parallel, closely spaced and integrally joined inductor block portions having machined coolant passages therein. The machined inductor is ri... | 09/19/1995 |
| 5401941 | Apparatus for the inductive cross-field heating of flat material An apparatus for the inductive cross-field heating of flat material includes a plurality of mutually opposite induction loops being disposed above and below the flat material. At least one pair of induction modules is formed of two induction modules being... | 03/28/1995 |
| 5397876 | High frequency bolt heater having induction heating coil A high frequency bolt heater is provided which can heat up the inside of a narrow hole much faster than a conventional bolt heater employing a resistance wire. The high frequency bolt heater includes an induction heating coil made of a copper tube bent in... | 03/14/1995 |
| 5365041 | Induction heating coil for bonding metal sheets An induction coil for joining structural members by heating a bonding material disposed between the structural members. The induction coil includes first and second elements disposed in a non-parallel arrangement adjacent one surface and along one side ed... | 11/15/1994 |
| 5345065 | Inductor with variable active length The invention relates to an inductor having two parallel main heating conductors which are interconnected at one of their ends via a bridge-shaped branch and are connected at their other end to a transformer, the connections also forming a bridge-shaped c... | 09/06/1994 |
| 5099756 | Radio frequency thermotherapy Apparatus for treating neoplasms in humans and animals comprising a hollow toroidal applicator which resonates at a specific radiofrequency, and which possess electrically conductive walls on which radial radiofrequency currents flow and generate a high d... | 03/31/1992 |
| 5048260 | Induction sealing machine and package wrapper useful therewith An apparatus for induction-sealing a package having sides formed of overlaying flaps with a thermoplastic material between the flaps serving as the adhesive has independently adjustable platens that bear against counter-rotating conveyor belts for applyin... | 09/17/1991 |
| 5025124 | Electromagnetic device for heating metal elements A magnetic field heating device for heating metal including a means to create an alternating magnetic field passing this magnetic field through a dissimilar metal part to uniformly heat the part. This differs from induction heating of metal parts because ... | 06/18/1991 |
| 4906805 | Method and apparatus for high frequency electrical cast welding and surface hardening Method and apparatus for depositing metal on, and bonding it to, a metal part or parts, either to provide hard facing metal on the metal part or to produce a cast weld between the parts. In the method, the metal to be deposited is melted before depositing... | 03/06/1990 |
| 4891484 | Variable width apparatus for induction heating of moving workpieces The apparatus comprises a pair of opposed coil assemblies between which a workpiece to be heated is moved, each coil assembly including a plurality of loop windings arranged generally in a plane parallel to the plane of movement of the workpiece between t... | 01/02/1990 |
| 4859823 | Electric induction heater In an electric induction furnace for heating a bar-shaped workpiece, wherein the workpiece has a longitudinal axis and is conveyed through the furnace in a conveying direction orthogonal to the longitudinal axis, an induction coil comprises a continuous c... | 08/22/1989 |
| 4857687 | Induction apparatus for heating edge portion of billet The invention relates to a device for heating billets, strip or sheet-metal, the device including one or more inductive edge heaters to heat the edges of a billet on its way from a continous casting machine, or strip or sheet-metal coming from a hot-rolli... | 08/15/1989 |
| 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 |
| 4828227 | Inductor for the inductive reheating of metallurgical products An inductor, used for the inductive reheating of metallurgical products is of the C-shaped magnetic yoke inductor type designed to straddle the product to be reheated. The free ends of the yoke have magnetic poles facing one another. The yoke comprises tw... | 05/09/1989 |
