3231220

Information

• Patent Grant
• 3231220

• References
• Source

• Patent Number

  3,231,220

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1966
  59 years ago

• CPC

  • F03D3/068 - the cyclic relative movement being coupled to the movement of rotation; Controlling same
  • B64C23/005 - by other means not covered by groups B64C23/02 - B64C23/08
  • B64C29/0016 - the lift during taking-off being created by free or ducted propellers or by blowers
  • B64C39/008 - about a longitudinal axis
  • B64C2700/6274 - by other means
  • F05B2260/72 - by turning around an axis parallel to the rotor centre line
  • Y02E10/74 - Wind turbines with rotation axis perpendicular to the wind direction

• US Classifications

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