3143622

Information

• Patent Grant
• 3143622

• References
• Source

• Patent Number

  3,143,622

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1964
  60 years ago

• CPC

  • H01H33/167 - the impedance being inserted only while opening the switch
  • H01H3/40 - using friction, toothed, or screw-and-nut gearing
  • H01H33/98 - the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow

• US Classifications

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