3239636

Information

• Patent Grant
• 3239636

• References
• Source

• Patent Number

  3,239,636

• Date Filed

  Not available

• Date Issued

  Tuesday, March 8, 1966
  58 years ago

• CPC

  • H04Q5/02 - with direct connection for all subscribers
  • H01H33/302 - for fluid insulated switchgear, wherein the insulating fluid is also the working fluid
  • H01H33/86 - the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices
  • 092 - Expansible chamber devices
  • 200 - Electricity: circuit makers and breakers