Illinois Tool Works Inc.

Randall G Baxter

Paul Verhagen

Jeffrey Robert Thomas

Mark Andrew Ulrich

Edward Gerard Beistle

David M Bickel

Don Wiseman

Brian James Veik

Jeffrey R Thomas

Paul D Verhagen

In one exemplary embodiment, the induction heating system includes an induction heating power source. The induction heating power source is operable to identify an induction heating device coupled to the induction heating power source. The exemplary induction heating power source is operable to automatically limit power based on the identity of the induction heating device.

Induction heating system output control based on induction heating device

A method and apparatus for heating a workpiece. An induction heating system is used to induce magnetic fields in a workpiece to inductively heat the workpiece. The induction heating system may comprise a portable power source, a portable power source controller, a fluid-cooled induction heating cable, and a portable cooling unit. The induction heating system may be used to perform a variety of induction heating operations, including: annealing, surface hardening, heat treating, stress-relieving, curing, shrink-fitting, etc.

On-site induction heating apparatus

A system and method for inductively heating a work piece. The induction heating system is coupleable to a plurality of temperature feedback devices operable to provide a signal representative of work piece temperature. The induction heating system is operable to control the output of the induction heating system based on the plurality of signals representative of work piece temperature received from the plurality of temperature feedback devices.

Induction heating system having multiple temperature input control

A system and method for inductively heating a work piece. The induction heating system is coupleable to at least one temperature feedback device. The temperature feedback device is disposed within the induction heating system to provide a signal representative of the temperature of an induction heating system component. The induction heating system is operable to control the output of the induction heating system based on the temperature of the induction heating system component to protect the component from heat damage.

Induction heating system and method of output power control

A method and apparatus for inducing heat within a workpiece. A flexible fluid-cooled induction heating cable is used to produce a magnetic field to induce electric current in a workpiece. The induction heating cable has separate fluid and electrical connectors to separately couple cooling fluid and electric current to and from the induction heating cable. An induction heating system having a fluid cooling unit, a power source, and a flexible fluid-cooled induction heating cable having separate fluid and electrical connectors. An extension cable may be used to enable the flexible fluid-cooled induction heating cable to be used at a greater distance from the power source and the fluid cooling unit. An insulation blanket adapted for use with a specific size workpiece may be used with the flexible fluid-cooled induction heating cable.

Apparatus for delivery of induction heating to a workpiece

A workpiece heating system having an induction heating power source and a controller. The controller is operable to control the operation of the power source according to programming instructions received from a user. The controller enables a user to establish a sequence of inductive heating operations to be performed automatically by the induction heating system from among a selection of inductive heating operations. A temperature feedback device may be included to provide the controller with the workpiece temperature. A data recorder may be provided to receive and record the workpiece temperature.

Method and system for control of on-site induction heating

Method and apparatus for delivery of induction heating to a workpiece

A method and apparatus for induction heating includes a power supply, and a controller, and an induction head. The induction head includes a flexible coiled, such as one formed with Litz wire. The head also includes a thermal insulator, for disposing between the head and the workpiece. The insulator reflects heat back to the workpiece, protecting the coil, but is transparent to inductive (E-M) energy. The power supply is a variable output frequency power supply, such as one having a resonant tank, to adapt to the inductance of the head.

Growing community of inventors

Black Creek, WI, United States of America

Randall G Baxter