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
Detection and use of low molecular-weight modulators of the cold-menthol receptor TRPM8
Decrementing settings for a range of power caps when a power cap is exceeded
Method of inspecting wafer
Control device
Identification of biomarkers in biological samples and methods of using same
Monitoring system
  Randomly Featured Patents
Dynamic biasing of ion optics in a mass spectrometer
Method of chemical mechanical texturing
Dual hydrostatic drive walk-behind mower
Electronic neutral density filter
Method for preparing a glass convenient for trimming, a glass thus obtained, and method for trimming such a glass
X-ray photographing apparatus
Flexible die and supporting cylinder
Simultaneous display of interleaved windowed video information from multiple asynchronous computers on a single video monitor
Expandable polyurethane powder preparations containing blowing agents and their use for the production of foamed polyurethane moldings
Water conservation kit