| Patents for B64D 35 - Transmitting power from power plant to propellers or rotors; Arrangements of transmissions (681) |
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| 09/03/2002 | US6443035 Hybrid power input quill for transmissions |
| 08/07/2002 | EP1228961A2 Constant-velocity transmission for aircraft rotor |
| 07/19/2002 | CA2368595A1 Transmission for driving counter-rotating propellers, lubrication system, and associated methods |
| 07/04/2002 | US20020086595 Transmission for driving counter-rotating propellers, lubrication system, and associated methods |
| 06/18/2002 | US6406261 Counter propeller propulsion unit |
| 06/05/2002 | CN1085973C Aircraft with fuselage substantially designed as aerodynamic filting body |
| 05/14/2002 | CA2170282C Multi-purpose aircraft |
| 04/09/2002 | US6367736 Convertiplane |
| 03/14/2002 | US20020031430 Variable pitch aircraft propeller control with two-speed transmission |
| 03/14/2002 | DE10042674A1 Power glider of propeller motor and drive shaft links rotary masses of shaft and propeller through slip coupling to compensate for vibration peaks as friction elements sprung onto pulley and drive hub. |
| 02/14/2002 | US20020017591 Drive unit for a model helicopter |
| 01/24/2002 | DE10027081C1 Antriebseinheit für einen Modellhubschrauber Drive unit for a model helicopter |
| 01/10/2002 | US20020003189 Articulated drive |
| 12/05/2001 | EP1160431A2 Drive unit for a model helicopter |
| 12/05/2001 | EP1160156A2 Propulsion unit with at least one propeller comprising a hub |
| 12/04/2001 | US6324929 Toothed gearing group for coupling two concentric shafts to a solitary driving shaft |
| 11/24/2001 | CA2348278A1 Variable pitch aircraft propeller control with two-speed transmission |
| 11/15/2001 | DE10022719A1 Reduction gear for propeller turbine or aircraft engine; has intermediate gear, input gear on drive shaft, driven gear on propeller shaft and elastic elements between intermediate and gear casings |
| 10/10/2001 | EP0745045B1 Propulsion system for a lighter-than-air vehicle |
| 09/11/2001 | US6286783 Aircraft with a fuselage substantially designed as an aerodynamic lifting body |
| 09/05/2001 | CN1070440C Propolusion system for air-ship |
| 08/28/2001 | US6279852 Drive system for a propeller driven transport aircraft |
| 07/24/2001 | US6264138 Propeller gearbox |
| 07/17/2001 | US6260351 Controlled spring rate gearbox mount |
| 07/03/2001 | US6254504 Power transmission apparatus for helicopter |
| 05/02/2001 | CN1293635A Propulsion system for aircraft |
| 04/26/2001 | DE19939481A1 Propulsion unit for aircraft has bearer that pivots about axis fixed to frame of aircraft, belt drive that pivots with bearer without alteration, engine that remains in its position in fuselage |
| 04/24/2001 | US6220545 Method and apparatus for sensing preload in a tilt rotor downstop |
| 02/15/2001 | DE10037537A1 Maintaining the pre-load between relatively movable members particularly in a tilt rotor aircraft using an actuator to provide the force used to create the pre-load |
| 02/07/2001 | EP1074469A1 Counter propeller propulsion unit |
| 02/06/2001 | US6182923 Helicopter with control by displacement of its center gravity |
| 02/06/2001 | CA2314836A1 Method and apparatus for sensing preload in a tilt rotor downstop |
| 01/24/2001 | EP1070663A2 Drive system for a tiltrotor aircraft |
| 01/10/2001 | EP1066194A1 Propulsion system for an aircraft |
| 01/02/2001 | US6168530 Device for coaxially coupling two shafts, especially for a helicopter |
| 12/06/2000 | EP1057724A2 Tilt-rotor aircraft |
| 11/16/2000 | WO2000017540A3 Propeller gearbox |
| 09/27/2000 | EP1038766A2 Power transmission apparatus for helicopter |
| 09/26/2000 | US6122985 Torque-dividing transmission, particularly for aircraft |
| 09/12/2000 | US6116015 Breather outlet |
| 08/08/2000 | US6098927 Multi-purpose aircraft |
| 07/19/2000 | EP1019287A1 Aircraft |
| 06/20/2000 | US6077041 Reduction drive and torque-limiting clutch for autogyro aircraft |
| 06/14/2000 | EP1008738A2 Controlled spring rate gearbox mount |
| 04/05/2000 | CN1249720A Aircraft with fuselage substantially designed as aerodynamic lifting body |
| 03/30/2000 | WO2000017540A2 Propeller gearbox |
| 02/15/2000 | US6024324 Method of monitoring an epicyclic assembly of a vehicle equipped with acceleration sensors in particular a helicopter |
| 02/01/2000 | US6019313 Installation for mounting an engine on a deck and for connecting its output shaft to at least one driven mechanism |
| 11/11/1999 | WO1998029303A8 Aircraft with a fuselage substantially designed as an aerostatic lifting body |
| 10/16/1999 | CA2230270A1 Multi motorised shaft |
| 10/14/1999 | WO1999051493A1 Counter propeller propulsion unit |
| 10/13/1999 | EP0948441A2 Aircraft with a fuselage substantially designed as an aerostatic lifting body |
| 10/07/1999 | WO1999050140A1 Propulsion system for an aircraft |
| 10/07/1999 | WO1998029303B1 Aircraft with a fuselage substantially designed as an aerostatic lifting body |
| 10/07/1999 | CA2324447A1 Propulsion system for an aircraft |
| 09/29/1999 | EP0945341A1 Driving system for vehicles and stationary installations |
| 09/29/1999 | EP0945340A1 Driving system for an aircraft |
| 09/21/1999 | US5954479 Twin engine, coaxial, dual-propeller propulsion system |
| 09/08/1999 | EP0940338A2 Gearbox breather outlet |
| 08/03/1999 | CA2183572C Propulsion system for a lighter-than-air vehicle |
| 04/08/1999 | WO1999016667A1 Aircraft |
| 03/03/1999 | EP0899553A2 Method of monitoring an epicyclic gear assembly equipped with acceleration sensors in a vehicle, in particular a helicopter |
| 02/18/1999 | DE19802256C1 Steering control for helicopter rotor drive |
| 02/11/1999 | WO1999006273A1 Split torque proprotor transmission |
| 12/22/1998 | US5850990 Multi-purpose aircraft |
| 12/09/1998 | CN2299809Y Propeller having direction control function |
| 11/11/1998 | EP0876955A2 Torque-dividing transmission, particularly for aircraft |
| 11/05/1998 | WO1998029303A3 Aircraft with a fuselage substantially designed as an aerostatic lifting body |
| 10/29/1998 | WO1998047763A1 Traction system for propeller-driven transport aeroplane |
| 10/28/1998 | EP0873938A1 Engine system for a propeller driven aircraft |
| 10/20/1998 | US5823470 For use in a nacelle of a tiltrotor aircraft |
| 09/03/1998 | DE19707124A1 Power transmission unit, especially for helicopter |
| 08/11/1998 | US5791594 Helicopter conversion |
| 07/09/1998 | WO1998029303A2 Aircraft with a fuselage substantially designed as an aerostatic lifting body |
| 07/09/1998 | DE19700182A1 Luftfahrzeug mit einem im wesentlichen als aerostatischem Auftriebskörper ausgebildeten Rumpf Aircraft with a trained as aerostatic lift body essentially Hull |
| 07/09/1998 | CA2276876A1 Aircraft with a fuselage substantially designed as an aerostatic liftin g body |
| 03/18/1998 | EP0829628A1 Combustion engine |
| 02/12/1998 | DE19734474A1 Zahnradgetriebegruppe zum Koppeln zweier konzentrischer Wellen mit einer einzelnen Antriebswelle Gear transmission group for coupling two concentric shafts with a single drive shaft |
| 01/07/1998 | EP0714363B1 Multi-purpose aircraft |
| 12/29/1997 | EP0745045A4 Propulsion system for a lighter-than-air vehicle |
| 10/01/1997 | EP0798207A2 Multi-purpose aircraft |
| 09/04/1997 | WO1997031821A1 Device for joining electrical power lines |
| 08/27/1997 | CN1157787A Snow field pedal plane |
| 07/08/1997 | US5645250 Multi-purpose aircraft |
| 06/26/1997 | CA2240361A1 Method for fabricating a split path transmission providing equal torque splitting |
| 01/03/1997 | WO1997000200A1 Vertical takeoff and landing aircraft |
| 12/04/1996 | EP0745045A1 Propulsion system for a lighter-than-air vehicle |
| 11/13/1996 | CN1135740A Propulsion system for a lighter-than-air vehicle |
| 08/14/1996 | DE19504361A1 Glider with boom foldable from fuselage |
| 06/25/1996 | US5528960 Power transmission apparatus |
| 06/05/1996 | EP0714363A1 Multi-purpose aircraft |
| 09/12/1995 | US5449129 Propulsion system for a lighter-than-air vehicle |
| 09/07/1995 | DE4406662A1 Propeller drive clutch for gliders |
| 08/24/1995 | WO1995022486A1 Propulsion system for a lighter-than-air vehicle |
| 06/08/1995 | WO1995005974A3 Multi-purpose aircraft |
| 05/10/1995 | EP0307452B1 Multiple engine drive for single output shaft and combining gearbox therefor |
| 03/02/1995 | WO1995005974A2 Multi-purpose aircraft |
| 09/21/1994 | CN1025951C Gearing differential mechanism for coaxial rotorplane |
| 05/26/1994 | DE4239639A1 Twin-engine light aircraft drive - has two separate piston engines driving single propeller through clutches and gearbox. |
| 04/20/1994 | EP0448672B1 Drive system for tiltrotor aircraft |