3922512

Information

• Patent Grant
• 3922512

• References
• Source

• Patent Number

  3,922,512

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • H01H33/166 - the impedance being inserted only while closing the switch
  • 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