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7501606 |
Device for induction hardening
A device (1) for the induction hardening of components (2) which have a circular cross section, especially crankshafts, has two inductor half-shells (4, 5) arranged along a portion of the periphery...
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7442906 |
Induction heating coil for shaft member having multiple steps and heating method
In an induction heating coil for heating a shaft member having multiple steps, annular conductors are separately disposed in the axis direction, the annular conductors having inner diameters so as...
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7145115 |
Apparatus for hardening a cylindrical bearing on a shaft by means of induction heating utilizing an elastic element
An apparatus for hardening cylindrical bearing locations on a shaft, in particular a crankshaft, in which transition radii to the adjacent shaft parts are of undercut design, is provided with a...
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7141768 |
Fastening device
A device for fastening surfaces together in an effective, efficient, and preferably reversible bond is disclosed. This device is particularly useful in the construction industry for fastening roll...
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7084381 |
Method and apparatus for controlling part movement
There is disclosed herein an apparatus and a method in which a workpiece is loaded into the apparatus and the apparatus then moves and positions the workpiece in a multitude of directions based...
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7005620 |
Piston and method of manufacture
A piston particularly adapted for heavy-duty diesel engine applications is fabricated from separate parts having circumferentially extending joining surfaces that are heated prior to bonding to an...
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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...
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6903317 |
Induction heating system having eccentric locator
An induction heating system and method of using the same are described. The system includes a locator system that eccentrically positions the central axis of the internal central void of the work...
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6867396 |
Apparatus for inductive heating of a tool holder
An apparatus for inductively heating a sleeve section, having a central holding opening for a shank of a rotary tool, of a tool holder that holds the shank in the holding opening in a press fit and...
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6734406 |
Method for improving the mechanical properties of journal crosses by induction heating
The invention relates to a method for improving the mechanical properties, especially the hardness, of journal crosses for use in articulated shafts. According to the invention, a superficial area...
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6727470 |
Impedance heating for railroad track switch
A heating system for railroad switches or other movable railroad structures that substantially eliminates protruding heater elements that may be damaged. The heater elements may cast into, enclosed...
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6664521 |
Line switch part snow melting device
A thawing device for railway track points is constituted by connecting a heating coil (1a) wound around a floor plate (2) for heating the floor plate (2) by induction to an inverter device (5) for...
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6638379 |
Method and device for hardening bearing surfaces of crankshafts
This invention relates to a procedure for hardening the bearing surfaces (H1,H2,H3,H4) of a shaft or axle, in particular a crankshaft (2) or camshaft, in which the bearing surfaces (H1-H4) to be...
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6555800 |
Process and apparatus for the induction hardening of crankshafts
In a process for the induction hardening of crankshafts with at least one connecting-rod pin and with at least two main bearings, in particular for the hardening of the at least one connecting-rod...
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6514455 |
Heating apparatus of a workpiece of distorted shape, and a quenching apparatus for simultaneous operation of multiple cams and a quenching method for the same
Rotation of a plate cam arranged at almost the center position of a semi-open coil is performed by a motor, and induction heating of the periphery of the plate cam is performed by the semi-open...
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6407372 |
Eccentric driving apparatus
To arbitrarily adjust the diameter of revolution when revolving an object without being associated with rotation by a simple structure. A bearing 322a is mounted to a bottom surface of a supporting...
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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,...
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6362462 |
Induction hardening coil for a crankshaft
An first induction hardening coil assembly according to one embodiment of the present invention comprises a coil having a top surface, an underside surface, and an inner coil curvature disposed...
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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...
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6259076 |
Method for hardening camshafts and linear inductor for the implementation of said method
A method for simultaneously hardening a group of cams on a camshaft comprises first heating the group of cams at low power for at least one heating interval, then pausing the heating for a pause...
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6166360 |
Heat treating of metallurgic article with varying aspect ratios
This invention provides methods for rapidly heating a metal part of varying thickness. In general, the invention provides methods comprising heating the thicker section(s) of the part by induction...
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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)...
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6160247 |
Induction hardening apparatus for a crankshaft
An induction hardening apparatus for inductively heating and quench hardening a crankshaft includes an arrangement of two workstations similarly configured and a robotic device indexing the...
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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...
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6077475 |
Arrangement and process for the inductive hardening of profiled camshafts
In a device for inductive hardening of profiled camshafts (especially those having valve cams and zero cams) during a hardening operation, the camshaft is surrounded by an inductor and is heated by...
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6069348 |
Method and apparatus for inductively heating non-circular workpieces
Apparatus for inductively heating and hardening diesel cam shaft lobes includes a table supporting an inductor for radial displacement relative to the lobe of a workpiece to be hardened and a...
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6043471 |
Multiple head inductive heating system
A system and method for inductively heating a workpiece includes a controller and a plurality of power supplies that receive and send signals to the controller. Induction heads receive power from...
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5796078 |
Method for the inductive surface hardening of workpieces
In a method for the inductive surface hardening of workpieces with any desired external geometries, especially camshafts for internal combustion engines, an inductor (15) is provided which at least...
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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...
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5544413 |
Method and apparatus for manfacturing a flashless metal connecting rod
A flashless metal connecting rod of the type having a one-piece construction and being fracturable into a cap portion and a body portion is produced by providing a precise preform of predetermined...
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5528019 |
High frequency induction heating method for rocker arms
Disclosed is a high-frequency heating apparatus including an elongated chamber in which a plurality of rocker arms are introduced, each of the rocker arms being attached with a chip and brazing...
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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...
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5444221 |
High-frequency induction heating apparatus for rocker arms
Disclosed is a high-frequency heating apparatus including an elongated chamber in which a plurality of rocker arms are introduced, each of the rocker arms being attached with a chip and brazing...
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5428208 |
Method of induction case hardening a rack bar
A method of case hardening a steering gear rack bar having a plain cylindrical barrel portion and an integral toothed portion on which are formed a plurality of rack gear teeth each having a...
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5389766 |
Rail snow-melting by electromagnetic induction heating
A snow-melting apparatus of an electromagnetic induction heating type, comprises: a high frequency power source; a pair of conductive cables wound in at least one turn around a segment of each rail...
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5373143 |
Apparatus and method of measuring temperature
A method and apparatus for measuring the temperature and heating rate of a workpiece during the induction heating cycle by inducing and detecting a plurality of eddy current pulses at varying...
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5242514 |
Method for the production of a hardened guide shaft for a linear guide
A method for the production of a hardened guide shaft for linear guide is disclosed, in which teeth are formed in a shaft, which is then passed through a circular inductor without rotation. The...
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5157232 |
Method and apparatus for inductively heating asymmetrically shaped workpieces
Metal workpieces having portions of different mass are sequentially stepped through a series of induction heating units having differently contoured inductors for inductively heating the workpiece...
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5157231 |
Apparatus for inductive hardening crankshafts with crank pins having a hollow ground radius
A method for the inductive hardening of working surfaces and transition radii on crankshafts in which, to receive connecting rods, crank pins are disposed directly one after another at different...
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4897518 |
Method of monitoring induction heating cycle
A method of monitoring a heating cycle of an induction heating system wherein an inductor encircles a metal workpiece and an alternating current is applied through the inductor from a power supply...
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4728761 |
Method and apparatus for hardening axially spaced cams on a camshaft
Method and apparatus for inductively heating and quench hardening axially spaced cams on a steel camshaft having a longitudinally extending rotational axis concentric with a plurality of axially...
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4714809 |
Method and apparatus for shaping the surfaces of cams on a camshaft
A method and apparatus for shaping, in a planar direction, an elongatd generally flat surface formed in a steel workpiece and having a geometric continuous configuration, such as the outer facing...
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4701584 |
Method and apparatus for the induction heat treatment of irregularly shaped workpieces
This invention relates to a method and apparatus for the induction heat treatment of conducting workpieces. More particularly, this invention relates to an apparatus and method for heat treating...
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4618125 |
System for hardening camshafts
A camshaft heat treating apparatus for processing a plurality of camshaft designs, which camshaft identifies and thereafter automatically inductively heats, quenches and inspects the camshaft in...
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4604510 |
Method and apparatus for heat treating camshafts
A method and apparatus for heat treating camshafts includes a retractable shield positioned between a previously hardened surface and a surface being heat treated. During the induction heating and...
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4549057 |
Flux concentrator assembly for inductor
A single loop inductor for inductively heating elongated workpieces is provided with flux concentrator assemblies accurately located on the parallel conductors by lamination keepers retained in...
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4535211 |
Inductor and method of making same
A single loop inductor for inductively heating elongated work pieces is machined including cooling passages for a single piece of electrically conductive material without fabricated joints between...
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4501942 |
Method and apparatus for uniform induction heating of an elongated workpiece
Method and apparatus for uniformly heating a workpiece such as a sucker rod or the like having a uniform cross-section over a major portion of its length and an enlargement adjacent each end...
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4477708 |
Apparatus for preheating the ends of upset steel pipes
Both thickened end portions of predetermined lengths of an upset steel pipe are preheated simultaneously, in advance of heat treatment of the pipe, in an apparatus provided with means for raising...
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4459451 |
Induction hardening apparatus and process for the use thereof
An inductor for heating rotating metal workpieces, especially for surface hardening the running surfaces, transition radii and shoulders of camshafts to different depths, has two or more heating...
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