3211397

Information

• Patent Grant
• 3211397

• References
• Source

• Patent Number

  3,211,397

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1965
  59 years ago

• CPC

  • B64C27/82 - characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
  • B64C23/005 - by other means not covered by groups B64C23/02 - B64C23/08
  • B64C27/12 - Rotor drives
  • B64C27/18 - the means being jet-reaction apparatus
  • B64C27/325 - Circulation-control rotors
  • B64C27/54 - Mechanisms for controlling blade adjustment or movement relative to rotor head
  • B64C2027/8245 - using air jets
  • B64C2700/6274 - by other means
  • B64C2700/6284 - Blades control devices
  • B64C2700/6287 - Rotor drives

• US Classifications

  • 244 - Aeronautics and astronautics
  • 416 - Fluid reaction surfaces