Resources Contact Us Home
Apparatus for continuous-direct-resistance heating of long-length articles

Image Number 7 for United States Patent #4822969.

The present invention relates to an apparatus for continuous-direct-resistance heating of long-length articles wherein the travelling long-length article is made to contact with roll electrodes disposed in a specified spacing, then made to pass through an annular transformer disposed between the roll electrodes.Conductive members with sufficiently less electrical resistance than that of the long-length article located between the both electrodes are disposed on the periphery of the transformer with the both ends thereof connected to the roll electrode through a slider, thereby a current being induced in the long-length article with the conductive member as the retrace, which heats the long-length article having a higher resistance very efficiently, neither resulting in an external voltage, nor causing electrically any obstacle to the production line in which the apparatus is installed.The apparatus comprises three roll electrodes, two transformers and conductive members being disposed on the periphery of the transformer connected to the neighboring roll electrode, the power being fed to each transformer from two single-phase transformers in the Scott connection with a three-phase power supply, thus providing heating without developing imbalance in the three-phase voltage.

  Recently Added Patents
Piano keyboard with key touch point detection
Surfcraft fin
Electronic system auto-mute control circuit and control method thereof
Signal processing apparatus, display apparatus having the same, and signal processing method
Semiconductor device
Managing imaging of computing devices
Article based on a composition containing a crosslinked blend of elastomers
  Randomly Featured Patents
Color correction method and color correction device applied to color signal vector using correction matrix
Snapshot reset method and apparatus
Second row seat assembly having fold flat mechanism with forward cushion movement
Method of grinding ferrule for inclined PC connector
Method and apparatus for reducing interference in a time division duplex communication system
Reflection convex mirror structure of a vertical light-emitting diode
Sending permission assignment in telecommunications system
Integrated relaxation oscillator with improved sensitivity to component variation due to process-shift
Method for assembling shaft of rotating valve door between a pair of housings