3764874

Information

• Patent Grant
• 3764874

• References
• Source

• Patent Number

  3,764,874

• Date Filed

  Not available

• Date Issued

  Tuesday, October 9, 1973
  51 years ago

• CPC

  • E05F15/41 - Detection by monitoring transmitted force or torque Safety couplings with activation dependent upon torque or force
  • E05F15/684 - by chains
  • E05Y2201/656 - Chains
  • E05Y2201/66 - Deflectors Guides
  • E05Y2201/672 - Tensioners, tension sensors
  • E05Y2400/445 - Switches
  • E05Y2400/552 - Switches
  • E05Y2400/57 - Disabling thereof
  • E05Y2600/322 - around a horizontal axis
  • E05Y2800/00 - Details, accessories and auxiliary operations not otherwise provided for
  • E05Y2900/106 - for garages

• US Classifications

  • 318 - Electricity: motive power systems