2150307

Information

• Patent Grant
• 2150307

• References
• Source

• Patent Number

  2,150,307

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  85 years ago

• CPC

  • H01H71/52 - actuated by lever
  • H01H71/2409 - combined with an electromagnetic current limiting mechanism
  • H01H71/527 - making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator
  • H01H71/58 - actuated by push-button, pull-knob, or slide
  • H01H73/18 - Means for extinguishing or suppressing arc
  • H01H3/0253 - two co-operating contacts actuated independently
  • H01H73/045 - Bridging contacts
  • H01H2071/0292 - Housing or frames containing grooves or slots for guiding movable parts

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 337 - Electricity: electrothermally or thermally actuated switches