3642148

Information

• Patent Grant
• 3642148

• References
• Source

• Patent Number

  3,642,148

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • B66C9/14 - Trolley or crane travel drives
  • B66C23/72 - Counterweights or supports for balancing lifting couples
  • B66C2700/0385 - Cranes with trolleys movable along adjustable or slewable arms
  • B66C2700/0392 - Movement of the crane arm Coupling of the crane arm with the counterweights Safety devices for the movement of the arm

• US Classifications

  • 212 - Traversing hoists