CPC B64C11/00

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Propellers, e.g. of "ducted type"; features common to propellers and rotors for rotorcraft.[1][2]

The phrase "ducted propeller" means is a propeller whose nozzle does not rotate; another name is Kort nozzle.[3]

This class covers:

  • Propeller hubs, blades and pitch-changing mechanisms[2]
  • Propeller vibration absorbing or balancing means; Arrangements of multiple propellers (e.g. coaxial propellers).[2]
  • Active or passive propeller measures for noise reduction (only such disclosures are attributed the symbol CPC B64C11/00).[2]

References

This category doesn't have any patents but its many subcategories do. The relevant class tree:

This wiki has 122 patents in category "CPC B64C11/00". Other techtypes related to CPC B64C11/00: CPC F01D5/06

Patents in category CPC B64C11/00

Enclosing categories CPC B64C
Subcategories CPC B64C11/003, CPC B64C11/005, CPC B64C11/006, CPC B64C11/008, CPC B64C11/30, CPC B64C11/46
Keywords CPC F01D5/06, Propellers
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