| Patents for B64C 11 - Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (3,644) |
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| 10/16/1997 | WO1997037891A1 Transportation power unit with energetic module |
| 10/16/1997 | DE19614049A1 Power plant for gliding parachute |
| 09/25/1997 | DE19611164A1 Tractor propeller for fixed wing aircraft |
| 08/28/1997 | WO1997030813A1 Shaft phase control mechanism |
| 08/12/1997 | US5655879 Mounting arrangement for variable diameter rotor blade assemblies |
| 08/07/1997 | DE19603720A1 Adjustable propeller with several blades connected to hub |
| 07/29/1997 | US5651707 Propulsive thrust ring system |
| 07/17/1997 | WO1997025244A1 Hydraulically reversible adjustable-pitch propeller unit |
| 07/17/1997 | DE19600660A1 Hydraulisch reversierbare Verstellpropeller-Einheit Hydraulically reversible adjustable unit |
| 07/16/1997 | EP0783430A1 Contra-rotating rotor unit |
| 07/09/1997 | EP0587582B1 A fibre reinforced component and a method of manufacturing such a component |
| 07/01/1997 | US5642982 Retraction/extension mechanism for variable diameter rotors |
| 06/19/1997 | WO1997021588A1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise |
| 06/19/1997 | CA2240160A1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise |
| 06/11/1997 | EP0777602A1 Rotary apparatus |
| 06/10/1997 | US5636969 Torque tube/spar assembly for variable diameter helicopter rotors |
| 06/04/1997 | EP0776823A1 Helicopter rotor blade with reinforced shielding against lightning strike |
| 06/04/1997 | EP0776822A1 Helicopter rotor blade with reinforced shielding against lightning strike |
| 06/04/1997 | EP0776820A1 Propeller propulsion unit for aircrafts in general |
| 05/22/1997 | DE19541954A1 Aircraft propeller setting device |
| 05/15/1997 | WO1997017256A1 Coaxial propeller and method of adjusting the same |
| 05/15/1997 | WO1997017255A1 System for controlling a coaxial reversing propeller fan |
| 05/15/1997 | WO1997017254A1 System for controlling a feather-reversible propeller for local airline aircraft |
| 05/15/1997 | WO1997017253A1 Variable pitch air propeller and method of measuring the angular position of the propeller blades |
| 05/15/1997 | WO1997017252A1 System and method for adjusting a variable-step propeller with feedback |
| 05/15/1997 | DE19541746A1 Drive for propeller driven vehicle |
| 05/07/1997 | DE19541202A1 Sail positioning- propeller installation for motor sailing ship and single-engined aircraft |
| 05/01/1997 | WO1997015489A1 An improved propeller |
| 04/22/1997 | CA2055953C Rotary wing aircraft rotor hub beam |
| 04/17/1997 | DE19638917A1 Stabilising or stiffening system for hollow bodies used in transport or construction |
| 04/15/1997 | US5620304 Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise |
| 04/15/1997 | US5620303 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (BVI) noise |
| 02/26/1997 | EP0651713A4 Variable diameter rotor drive system. |
| 02/20/1997 | WO1997006057A1 A bearing and a method of disassembling such a bearing |
| 02/20/1997 | WO1997006056A1 Bearing preload |
| 01/21/1997 | US5595474 Pitch variation control device for the blades of a turbomachine rotor and method of operating the device |
| 01/16/1997 | EP0700828A4 Method of controlling the resultant aerodynamic force produced by a propeller and a device for carrying out the said method |
| 12/31/1996 | US5588619 Propeller syncro-pulsing |
| 12/11/1996 | CN2242220Y Portable aircraft withlifting and lowering function |
| 11/12/1996 | US5573378 Gas turbine nose cone attachment |
| 10/30/1996 | CN1134383A Internal propeller |
| 10/16/1996 | EP0495965B1 A propeller control system |
| 10/16/1996 | CN1133253A Light airplane |
| 10/16/1996 | CN1133252A New concept air propeller with auxiliary propeller |
| 10/10/1996 | WO1996031390A1 Variable pitch propeller |
| 10/10/1996 | DE19528350A1 Adjustable propeller for ultra-light aircraft |
| 10/10/1996 | DE19518699A1 Automatically adjustable propeller mechanism for aircraft |
| 09/03/1996 | US5551649 System for reducing vibrations in the cabin of an aircraft |
| 07/25/1996 | DE19501265A1 Enclosed propeller engine for aircraft |
| 07/23/1996 | CA1338464C Non-positive rotary displacements machine for use as a pump, compressor, propulsor, generator or turbine |
| 04/25/1996 | DE4437102A1 Model helicopter with rotor and production tool |
| 04/04/1996 | WO1996009954A1 Contra-rotating rotor unit |
| 04/04/1996 | CA2201146A1 Contra-rotating rotor unit |
| 03/14/1996 | WO1996007588A1 Rotary apparatus |
| 03/13/1996 | EP0700828A1 Method of controlling the resultant aerodynamic force produced by a propeller and a device for carrying out the said method |
| 02/22/1996 | WO1996005097A1 Three-dimensional objects |
| 02/20/1996 | US5492448 Rotary blades |
| 02/15/1996 | DE4442212A1 Shrouded screw propeller with jet outlet |
| 02/08/1996 | DE4426403C1 Auxiliary power plant for glider |
| 02/06/1996 | CA2028265C Propeller blade position controller |
| 02/01/1996 | WO1996002776A1 Ring seal |
| 02/01/1996 | DE4426633A1 Folding propeller for motor gliders |
| 01/18/1996 | DE4443750A1 Propeller for ship or aircraft |
| 01/18/1996 | DE4443744A1 Wing for aircraft or hydrofoil |
| 01/03/1996 | EP0642441B1 Variable diameter rotor having an offset twist |
| 12/28/1995 | WO1995035235A1 Aircraft rotor arrangement |
| 12/27/1995 | EP0610273B1 Composite blade manufacture |
| 12/07/1995 | DE4420219A1 Fixed wing aircraft with two coaxial propellers of different diameters |
| 11/28/1995 | US5470202 Fan for moving air |
| 10/31/1995 | US5462410 For a torque transmission system |
| 10/31/1995 | US5462408 Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture |
| 10/12/1995 | WO1995026904A1 Method of controlling the resultant aerodynamic force produced by a propeller and a device for carrying out the said method |
| 10/03/1995 | US5454693 Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture with injection step |
| 09/26/1995 | US5453943 Adaptive synchrophaser for reducing aircraft cabin noise and vibration |
| 09/26/1995 | US5452988 Blade pitch change mechanism |
| 09/19/1995 | US5451141 Propeller pitch change machanism with inductive brake and motor |
| 09/07/1995 | DE4406662A1 Propeller drive clutch for gliders |
| 08/24/1995 | WO1995022488A1 Adaptive synchrophaser for reducing aircraft cabin noise and vibration |
| 07/20/1995 | DE4400806A1 Motor driven aircraft propeller, or rotor |
| 07/19/1995 | EP0663337A1 Propeller blade position controller |
| 07/18/1995 | US5433586 Tapered propeller blade design |
| 07/18/1995 | CA2013856C Pitch change actuation system |
| 07/12/1995 | EP0570527B1 Lightweight propulsor blade |
| 07/11/1995 | US5431539 Propeller pitch change mechanism |
| 06/29/1995 | DE4343904A1 Bauteil aus faserverstärktem Verbundwerkstoff mit einer Schutzschicht gegen Erosion Component of fiber-reinforced composite material with a protective layer against erosion |
| 06/28/1995 | EP0598067B1 Blade pitch change control system |
| 06/07/1995 | EP0464158B1 Lightweight airfoil |
| 05/31/1995 | EP0541718B1 Plastic fan blade for industrial cooling towers and method of making same |
| 05/31/1995 | CN1103137A Extruded aluminum fan blade |
| 05/26/1995 | WO1995013964A1 Propulsion unit for slow light aircraft |
| 05/18/1995 | WO1995013215A1 Rotor blade pitch change control method and device |
| 05/16/1995 | US5416699 Propeller speed control having control parameters based on system dynamic characteristics |
| 05/16/1995 | US5415527 Propeller assembly |
| 05/10/1995 | EP0652154A1 Control method and device of the variable pitch of rotor blades |
| 05/10/1995 | EP0651713A1 Variable diameter rotor drive system |
| 05/09/1995 | US5413465 Propulsion device having circular array of inclined airfoil elements with radially-outwardly directed vacuum-inducing surfaces |
| 05/09/1995 | US5413464 Propulsion device having circular array of inclined airfoil elements with radially-inwardly directed vacuum-inducing surfaces |
| 05/02/1995 | CA1335444C Pinned airfoil propeller assembly |
| 04/06/1995 | DE4401739A1 Folding propeller device for motorised gliders |
| 02/21/1995 | US5391055 Propeller pitch change mechanism with impulse turbines |