3291450

Information

• Patent Grant
• 3291450

• References
• Source

• Patent Number

  3,291,450

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1966
  57 years ago

• CPC

  • E02F3/48 - Drag-lines
  • B66D1/26 - having several drums or barrels
  • B66D5/00 - Braking or detent devices characterised by application to lifting or hoisting gear
  • B66D5/26 - pneumatic or hydraulic
  • B66D2700/0166 - Winches with multiple drums or with drums with multiple parts of different diameter
  • B66D2700/0175 - with adjacent drums mounted on a single shaft with a common coupling member
  • B66D2700/03 - Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
  • B66D2700/035 - Fluid operated braking devices

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 037 - Excavating