Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Systems and methods for automated institutional processing of payments
Bit error mitigation
System and method for access of user accounts on remote servers
Compositions and methods for lowering triglycerides in a subject on concomitant statin therapy
Radiation-curable ink composition, ink jet recording method, and recorded matter
Method for assembling a camera module, and camera module
Sampling switch circuit that uses correlated level shifting
  Randomly Featured Patents
Dyes, processes for their preparation and their use
Method for forming a metal pattern on a dielectric substrate
Comb polymer derivatives of polyetheramines useful as agricultural dispersants
Photonic choke-joints for dual polarization waveguides
Projector and phase difference plate and method of arranging phase difference plate
Method and apparatus for painting the surfaces of wood chips
High purity, low silica X-type zeolite binderless shaped product and gas separation method employing it
Surgical instrument with removable shaft apparatus and method
System and method for an escapable multistory building
Aqueous water-in-oil cleaning emulsion