3780989

Information

• Patent Grant
• 3780989

• References
• Source

• Patent Number

  3,780,989

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • B66D1/50 - for maintaining predetermined rope, cable, or chain tension
  • B63B21/56 - Towing or pushing equipment
  • B66D1/48 - automatic
  • B66D2700/0108 - with devices for paying out or automatically tightening the cable
  • Y10S254/903 - Yieldable, constant engagement, friction coupling

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 192 - Clutches and power-stop control