3321020

Information

• Patent Grant
• 3321020

• References
• Source

• Patent Number

  3,321,020

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1967
  57 years ago

• CPC

  • B64C27/20 - Rotorcraft characterised by having shrouded rotors
  • B64C27/46 - Blades
  • B64C27/473 - Constructional features
  • B64C27/50 - Blades foldable to facilitate stowage of aircraft
  • B64C27/54 - Mechanisms for controlling blade adjustment or movement relative to rotor head
  • B64C2700/6284 - Blades control devices
  • B64C2700/6291 - Rotors stowable in the wings

• US Classifications

  • 416 - Fluid reaction surfaces