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| Number | Title | Issue Date |
| 7146735 | Method of making a bearing ring for a large roller bearing A bearing ring for a large roller bearing is formed with at least one annular race which is hardened by heating by juxtaposing that race with an inductor across a spacing which is maintained during the heating and then quenching. The spacing is controlled selectivel... | 12/12/2006 |
| 7084380 | Raw tire preheating method and apparatus therefor A raw tire-preheating method and apparatus for preheating a raw tire uniformly over all the areas with a reduced running cost. The raw tire-preheating apparatus comprises a tread section-preheating mechanism (16) including a front coil (21) disposed so... | 08/01/2006 |
| 7022951 | Induction heating work coil An induction heating device or work coil for heating electroconductive material to a desired temperature that can be used on a roll or cylinder of any diameter. The work coil has an open core of ferrite material shaped in a U. Wire is wound around the opposing legs ... | 04/04/2006 |
| 6943328 | Raw tire preheating method and apparatus therefor A raw tire-preheating method and apparatus for preheating a raw tire uniformly over all the areas with a reduced running cost. The raw tire-preheating apparatus comprises a tread section-preheating mechanism (16) including a front coil (21) disposed so... | 09/13/2005 |
| 5373144 | Improvements in induction heating device A heating device for heating objects, such as moulding tools for preheating them, removing rubber, to produce shrink fit operations and other treatments of objects (11, 12, 13) which consist, at least partly, of metal, the device comprising a core (2) of ... | 12/13/1994 |
| 5313037 | High power induction work coil for small strip susceptors There is disclosed a high power induction heating coil for use in thermoplastic welding where a metallic susceptor is imbedded in a composite assembly and is heated by eddy currents generated by the coil. The coil is comprised of several windings of Litz ... | 05/17/1994 |
| 5310975 | Method and apparatus for the continuous field annealing of amorphous metal transformer cores A method and apparatus are disclosed for the continuous annealing of amorphous metal cores of the type used in electrical transformers, and wherein the cores are heated in the presence of a magnetic field. The cores are transported serially along the leng... | 05/10/1994 |
| 5248865 | Apparatus for induction heating of bearings or the like An induction heater for ring-like articles such as bearings includes a hinged clamp-like magnetically inductive core of ferrite which can be opened to receive and closed to accommodate the article to be heated and which has a primary winding and a source ... | 09/28/1993 |
| 5026956 | Inductively heated ring puller A rig puller for removing rings from shafts to which they are affixed. The puller is formed by a steel heat accumulator ring having a slot separating the ring into a band having separated ends. An electrical conductor extends between the ring ends, and a ... | 06/25/1991 |
| 5023419 | Device for the induction heating of a workpiece A device for heating a workpiece includes a coil arrangement connected to a voltage source for generating a magnetic field. The coil arrangement is positioned around a core of electric steel sheeting having two poles spaced apart to form an air gap for ac... | 06/11/1991 |
| 4673785 | Automatic apparatus for induction hardening Automatic apparatus for the induction hardening of parts of track links includes a frame for supporting the inductors which can oscillate in a horizontal plane above the links so as to enable the induction hardening of links of different shapes and dimens... | 06/16/1987 |
| 4649248 | Annealing furnace for annealing magnetic cores in a magnetic field An annealing furnace for annealing magnetic cores therein. Each magnetic core is placed on a tray on which the core is transferred on rollers through the furnace along with a conductive magnetizing conductor or shaft positioned inside the core and a curre... | 03/10/1987 |
| 4568809 | Method for the induction melting of a charge blank There is disclosed an improved method of melting a charge blank of an electrically-conductive fusible material including the steps of positioning at least one substantially ring-shaped charge blank in a crucible wherein the charge blank has an outside tra... | 02/04/1986 |
| 4330911 | Process for production of an object consisting of at least two parts movable relative to each other, one of which is substantially enclosed within the other A process for the production of objects consisting of at least two parts, such as the inner and outer rings of a bearing movable relative to one another. One part is substantially enclosed within the other part and at least one of the parts comprises at l... | 05/25/1982 |
| 4311896 | Heating apparatus for annular bearings and rings The present invention is related to a heating apparatus for rings or the like. A U-shaped core is placed in a case such that the ends of the two core legs can project therethrough. A primary coil is placed around a portion of the core that is within the c... | 01/19/1982 |
| 4247972 | Method of manufacturing a piston ring A parted annular piston sealing ring and a method for manufacture thereof wherein an inwardly facing ring surface adapted to be engaged by an expander-spring for expanding the ring into sealing engagement with a cylinder wall is hardened in a zone immedia... | 02/03/1981 |
