3628115

Information

• Patent Grant
• 3628115

• References
• Source

• Patent Number

  3,628,115

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1971
  53 years ago

• CPC

  • B66D3/22 - with variable-speed gearings between driving motor and drum or barrel
  • B66C13/24 - by dc motors
  • B66D3/18 - Power-operated hoists
  • B66D2700/026 - Pulleys, sheaves, pulley blocks or their mounting

• US Classifications

  • 318 - Electricity: motive power systems
  • 254 - Implements or apparatus for applying pushing or pulling force