3512757

Information

• Patent Grant
• 3512757

• References
• Source

• Patent Number

  3,512,757

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1970
  54 years ago

• CPC

  • F16H55/50 - Features essential to rope pulleys
  • B66D3/04 - Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys
  • B66D2700/028 - Pulley blocks with multiple sheaves
  • Y10T74/2048 - Gear, drum, and cable
  • Y10T74/20486 - Drum and cable

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 074 - Machine element or mechanism
  • 226 - Advancing material of indeterminate length
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 474 - Endless belt power transmission systems or components