3414660

Information

• Patent Grant
• 3414660

• References
• Source

• Patent Number

  3,414,660

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1968
  56 years ago

• CPC

  • F27B14/14 - Arrangements of heating devices
  • F27D11/00 - Arrangement of elements for electric heating in or on furnaces
  • H02H7/00 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
  • H05B6/28 - Protective systems

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 219 - Electric heating
  • 361 - Electricity: electrical systems and devices
  • 392 - Electric resistance heating devices