CPC B64C11/30

Pitch-changing mechanisms for propeller blades Some similar examples are in CPC B63H3/00 but those are more marine-oriented.

Nearby class tree:

• CPC B64C11/00: Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (rotors specially adapted for rotorcraft CPC B64C27/32)
  • CPC B64C11/001: Shrouded propellers
  • CPC B64C11/002: Braking propellers, e.g. for measuring the power output of an engine
  • CPC B64C11/003: Variable-diameter propellers; Mechanisms therefor
  • CPC B64C11/005: Spiral-shaped propellers
  • CPC B64C11/006: Paddle wheels
  • CPC B64C11/007: Propulsive discs, i.e. discs having the surface specially adapted for propulsion purposes
  • CPC B64C11/008: characterised by vibration absorbing or balancing means (for rotorcraft CPC B64C27/001)
  • CPC B64C11/02: Hub construction
    • . . . .
  • CPC B64C11/16: Blades
    • . . . .
  • CPC B64C11/30: Blade pitch-changing mechanisms
    • CPC B64C11/301: characterised by blade position indicating means
    • CPC B64C11/303: characterised by comprising a governor
    • CPC B64C11/305: characterised by being influenced by other control systems, e.g. fuel supply
    • CPC B64C11/306: specially adapted for contrarotating propellers
      • CPC B64C11/308: automatic
    • CPC B64C11/32: mechanical
      • CPC B64C11/325: comprising feathering, braking or stopping systems
      • CPC B64C11/34: automatic
        • CPC B64C11/343: actuated by the centrifugal force or the aerodynamic drag acting on the blades
        • CPC B64C11/346: actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces
      • CPC B64C11/36: non-automatic
    • CPC B64C11/38: fluid, e.g. hydraulic
      • CPC B64C11/385: comprising feathering, braking or stopping systems
      • CPC B64C11/40: automatic
      • CPC B64C11/42: non-automatic
    • CPC B64C11/44: electric
  • CPC B64C11/46: Arrangements of or constructional features peculiar to multiple propellers (CPC B64C11/306 takes precedence)
    • . . . .

References

This wiki has 19 patents in category "CPC B64C11/30".

Patents in category CPC B64C11/30

• Patent DE-1918-326213 (Filing date: 1918-04-21)
• Patent FR-1908-393246 (Inventors: Michel Vinogradow, Filing date: 1908-08-12)
• Patent FR-1909-395320.10522 (English title: Flight Apparatus, propeller blade that is, Inventors: Paul Frederik Degn, Supplementary to patent: Patent FR-1908-395320 • Patent DE-1908-210933, Filing date: 1909-01-29)
• Patent FR-1909-401603 (English title: Air propeller for changing forward speed, Inventors: Félix-Henri Villard, Filing date: 1909-04-02)
• Patent FR-1909-409203 (English title: Flat sail aerial wing, expandable on the move using mercury, air or compressed gas, Inventors: Alexis Lupoff, Filing date: 1909-07-30)
• Patent FR-1910-409766 (English title: Aerial propulsion, Inventors: Sidney Lawrence, Supplementary to patent: Patent GB-1909-27974, Filing date: 1909-11-29)
• Patent FR-1911-421077 (English title: Air propeller with adjustable pitch, Inventors: Valentin Purrey, Filing date: 1909-12-11)
• Patent FR-1910-411414 (English title: Propeller for aerial navigation, Inventors: Wilhelm Pega • Karl Emich, Filing date: 1910-01-08)
• Patent FR-1910-412497 (English title: Propeller with flexible blades, Inventors: Pierre-Louis Pujo • Ernest-Marie Merlin, Filing date: 1910-02-10)
• Patent FR-1910-413046 (English title: Wooden variable-speed aerial propeller, Inventors: Lucien Chauvière, Filing date: 1910-02-25)
• Patent GB-1911-8290 (English title: Flexible and inflatable airship propellers, Inventors: Robert Pohl, Filing date: 1910-04-06)
• Patent FR-1910-431231 (English title: Sail propeller, automatically increasing in pitch, for air navigation and other applications, Inventors: Guy d'Eichthal • Pierre Lescarret, Filing date: 1910-09-05)
• Patent FR-1910-421375 (English title: Propeller for aerial vehicles, Inventors: Albert Gross • Josef Kirchberger, Filing date: 1910-10-13)
• Patent FR-1911-423766 (English title: Improvements to the construction of propellers, Inventors: Walter Charles Pitter, Filing date: 1910-12-12)
• Patent FR-1911-432230 (English title: Flexible propeller of variable speed, Inventors: Albert-Constantin-Louis Bazin, Filing date: 1911-05-17)
• Patent FR-1912-456233 (English title: Aircraft related propeller system, Inventors: Marie-Joseph-Henri Duroy de Bruignac, Filing date: 1912-06-12)
• Patent FR-1913-453894 (English title: Automatically adjusting propeller, Supplementary to patent: Patent-DE-1912-12-07, Filing date: 1913-01-17, Applicant firm: Franz Reschke vorm. Julius Metzer GmbH)
• Patent GB-1915-622 (Inventors: Murray Fraser Sueter, Filing date: 1915-01-14)
• Patent US-1918-1401992 (English title: Propeller, Inventors: William H. Leinweber, Filing date: 1918-06-10, Applicant firm: Continental Air Craft Transportation Company)

Enclosing categories	CPC B64C11/00
Subcategories	CPC B64C11/301, CPC B64C11/303, CPC B64C11/305, CPC B64C11/306, CPC B64C11/32, CPC B64C11/38, CPC B64C11/44
Keywords	Propeller, blade
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