2290714

Information

• Patent Grant
• 2290714

• References
• Source

• Patent Number

  2,290,714

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1942
  82 years ago

• CPC

  • B66B1/2458 - For elevator systems with multiple shafts and a single car per shaft
  • B66B2201/102 - Up or down call input
  • B66B2201/213 - where the number of stops is limited
  • B66B2201/225 - Taking into account a certain departure interval of elevator cars from a specific floor
  • B66B2201/40 - Details of the change of control mode

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle