Template:Classification tree from CPC B64C25/00

Classification tree descending from CPC B64C25/00:

• CPC B64C25/00 Alighting gear (air-cushion alighting gear CPC B60V3/08)
  • CPC B64C25/001 Devices not provided for in the groups CPC B64C25/02 - CPC B64C25/68
    • CPC B64C2025/003 Means for reducing landing gear noise, or turbulent flow around it, e.g. landing gear doors used as deflectors
    • CPC B64C2025/005 Tail skids for fuselage tail strike protection on tricycle landing gear aircraft
    • CPC B64C2025/006 Landing gear legs comprising torque arms
    • CPC B64C2025/008 Comprising means for modifying their length, e.g. for kneeling, for jumping, or for leveling the aircraft
  • CPC B64C25/02 Undercarriages
    • CPC B64C25/04 Arrangement or disposition on aircraft
    • CPC B64C25/06 fixed
    • CPC B64C25/08 non-fixed, e.g. jettisonable
      • CPC B64C25/10 retractable, foldable, or the like
        • CPC B64C25/12 sideways
          • CPC B64C2025/125 into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage
        • CPC B64C25/14 fore-and-aft
        • CPC B64C25/16 Fairings movable in conjunction with undercarriage elements
        • CPC B64C25/18 Operating mechanisms
          • CPC B64C25/20 mechanical
          • CPC B64C25/22 fluid
          • CPC B64C25/24 electric
          • CPC B64C25/26 Control or locking systems therefor
            • CPC B64C25/28 with indicating or warning devices
            • CPC B64C25/30 emergency actuated
  • CPC B64C25/32 characterised by the ground or like engaging elements (arrester hooks CPC B64C25/68)
    • CPC B64C2025/325 specially adapted for helicopters
    • CPC B64C25/34 wheeled type, e.g. multi-wheeled bogies
      • CPC B64C2025/345 Multi-wheel bogies having one or more steering axes
      • CPC B64C25/36 Arrangements or adaptations of wheels, tyres, or axles in general (construction of wheels or axles CPC B60B; construction of tyres in general CPC B60C)
    • CPC B64C25/38 endless-track type
    • CPC B64C25/40 the elements being rotated before touch-down
      • CPC B64C25/405 Powered wheels, e.g. for taxing
    • CPC B64C25/42 Arrangements or adaptations of brakes (the ground braking force being regulated, at least in part, by a speed condition, e.g. acceleration or deceleration of the ground engaging alighting gear, CPC B60T8/32)
      • CPC B64C25/423 Braking devices acting by reaction of gaseous medium (CPC B64C25/426 takes precedence; using rockets CPC B64D27/023)
      • CPC B64C25/426 Braking devices providing an automatic sequence of braking
      • CPC B64C25/44 Actuating mechanisms
        • CPC B64C25/445 Brake regulators for preventing somersaulting
        • CPC B64C25/46 Brake regulators for preventing skidding or aircraft somersaulting (anti-skidding regulators; electric or electronic controllers therefor CPC B60T8/1703)
        • CPC B64C25/48 differentially operated for steering purposes
    • CPC B64C25/50 Steerable undercarriages; Shimmy damping (steering devices applicable to land vehicles CPC B62D)
      • CPC B64C25/505 Shimmy damping
    • CPC B64C25/52 Skis or runners
    • CPC B64C25/54 Floats
      • CPC B64C25/56 inflatable (connection of valves to inflatable elastic bodies CPC B60C29/00)
    • CPC B64C25/58 Arrangements or adaptations of shock-absorbers or springs (shimmy dampers CPC B64C25/50; vehicle suspension arrangements in general CPC B60G; shock absorber per se CPC F16F)
      • CPC B64C25/60 Oleo legs
      • CPC B64C25/62 Spring shock-absorbers; Springs
        • CPC B64C25/64 using rubber or like elements
    • CPC B64C25/66 Convertible alighting gear; Combinations of different kinds of ground or like engaging elements
  • CPC B64C25/68 Arrester hooks (arresting gear, e.g. on aircraft carriers CPC B64F)