3891893

Information

• Patent Grant
• 3891893

• References
• Source

• Patent Number

  3,891,893

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • H01H33/143 - of different construction or type
  • H01H33/167 - the impedance being inserted only while opening the switch
  • H01H33/75 - Liquid-break switches
  • H01H33/903 - and assisting the operating mechanism
  • H01H2033/146 - using capacitors

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 218 - High-voltage switches with arc preventing or extinguishing devices