2757261

Information

• Patent Grant
• 2757261

• References
• Source

• Patent Number

  2,757,261

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1956
  68 years ago

• CPC

  • H01H33/22 - Selection of fluids for arc-extinguishing
  • H01B3/00 - Insulators or insulating bodies characterised by the insulating materials Selection of materials for their insulating or dielectric properties
  • H01B3/16 - gases
  • H01H33/167 - the impedance being inserted only while opening the switch
  • H01T1/02 - Means for extinguishing arc

• US Classifications

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