2804493

Information

• Patent Grant
• 2804493

• References
• Source

• Patent Number

  2,804,493

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1957
  67 years ago

• CPC

  • H05B7/005 - Electrical diagrams
  • H05B7/156 - by hydraulic or pneumatic means for positioning of electrodes
  • Y02P10/256 - Design or operational measures for increasing the efficiency of electric conversion
  • Y02P10/259 - in electric arc furnaces

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 314 - Electric lamp and discharge devices: consumable electrodes