3257492

Information

• Patent Grant
• 3257492

• References
• Source

• Patent Number

  3,257,492

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1966
  58 years ago

• CPC

  • H05B3/42 - non-flexible
  • B28B3/123 - on material in moulds or on moulding surfaces moving continuously underneath or between the rollers
  • B28B5/025 - the moulds or the moulding surfaces being divided by separating walls and being continuously fed
  • C21D1/773 - under reduced pressure or vacuum
  • D01F9/32 - Apparatus therefor
  • F24H1/121 - using electric energy supply
  • F27D11/00 - Arrangement of elements for electric heating in or on furnaces
  • F27D11/02 - Ohmic resistance heating
  • H01C7/02 - having positive temperature coefficient
  • H05B3/62 - Heating elements specially adapted for furnaces
  • H05B3/66 - Supports or mountings for heaters on or in the wall or roof

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 219 - Electric heating
  • 338 - Electrical resistors
  • 439 - Electrical connectors