2647590

Information

• Patent Grant
• 2647590

• References
• Source

• Patent Number

  2,647,590

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1953
  71 years ago

• CPC

  • B66B1/405 - for hydraulically actuated elevators
  • B66B1/04 - hydraulic
  • B66B5/028 - Safety devices separate from control system in case of power failure, for hydraulical lifts
  • B66B9/04 - actuated pneumatically or hydraulically

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 251 - Valves and valve actuation