3561571

Information

• Patent Grant
• 3561571

• References
• Source

• Patent Number

  3,561,571

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1971
  53 years ago

• CPC

  • B66B1/3484 - using load cells
  • B66B1/2458 - For elevator systems with multiple shafts and a single car per shaft
  • B66B2201/102 - Up or down call input
  • B66B2201/211 - Waiting time
  • B66B2201/222 - Taking into account the number of passengers present in the elevator car to be allocated
  • B66B2201/226 - Taking into account the distribution of elevator cars within the elevator system
  • B66B2201/231 - Sequential evaluation of plurality of criteria
  • B66B2201/241 - Standby control
  • B66B2201/243 - Distribution of elevator cars
  • B66B2201/303 - Express or shuttle elevators
  • B66B2201/403 - by real-time traffic data

• US Classifications

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