3567885

Information

• Patent Grant
• 3567885

• References
• Source

• Patent Number

  3,567,885

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1971
  53 years ago

• CPC

  • H01H33/82 - the fluid being air or gas
  • H01H33/12 - Auxiliary contacts on to which the arc is transferred from the main contacts
  • H01H33/166 - the impedance being inserted only while closing the switch
  • H01H33/302 - for fluid insulated switchgear, wherein the insulating fluid is also the working fluid

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices