2487637

Information

• Patent Grant
• 2487637

• References
• Source

• Patent Number

  2,487,637

• Date Filed

  Not available

• Date Issued

  Tuesday, November 8, 1949
  75 years ago

• CPC

  • H01H71/7445 - Poly-phase adjustment
  • H01H71/74 - Means for adjusting the conditions under which the device will function to provide protection
  • Y10T74/11 - Tripping mechanism

• US Classifications

  • 337 - Electricity: electrothermally or thermally actuated switches
  • 074 - Machine element or mechanism
  • 200 - Electricity: circuit makers and breakers
  • 218 - High-voltage switches with arc preventing or extinguishing devices