3721786

Information

• Patent Grant
• 3721786

• References
• Source

• Patent Number

  3,721,786

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • H01H33/91 - the arc-extinguishing fluid being air or gas
  • H01H33/285 - using electro-dynamic repulsion
  • H01H33/882 - the movement being assisted by accelerating coils

• US Classifications

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