Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
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06/01/1999 | US5909449 Multibit-per-cell non-volatile memory with error detection and correction |
06/01/1999 | US5908522 Supplemental leading edge wear strip for a rotor blade |
06/01/1999 | US5908185 Handrail and bumper combination |
05/25/1999 | US5907211 High-efficiency, large stroke electromechanical actuator |
05/25/1999 | US5906476 Main rotor system for helicopters |
05/20/1999 | DE19842543A1 Craft with hovering capabilities |
05/20/1999 | DE19749794A1 Drive unit |
05/19/1999 | CN1217049A Vibration isolation ring gear for planetary gear drive |
05/14/1999 | WO1999022990A1 Spring element and support bearing for helicopter tail rotors and supporting structures for use in space |
05/12/1999 | EP0866765B1 Rotor system having alternating length rotor blades for reducing blade-vortex interaction (bvi) noise |
05/12/1999 | DE19748682A1 Federelement und Stützlager für Hubschreiberheckrotoren und Tragestrukturen zum Einsatz im Weltraum Spring element and support bearings for Hubschreiberheckrotoren and support structures for use in space |
05/11/1999 | US5903077 Modular vibratory force generator, and method of operating same |
05/11/1999 | US5901616 Inertial mass for vibration isolators |
05/06/1999 | WO1999010233A3 Vibration isolator for rotorcraft |
05/05/1999 | CN2317173Y Double-rotary wing helicopter |
05/05/1999 | CA2214967A1 Helicopter stabilization system |
04/29/1999 | WO1999020527A1 Rotorcraft |
04/28/1999 | EP0911833A2 Multi-level non-volatile memory with error detection and correction |
04/28/1999 | EP0911257A2 Helicopter blade aerofoil |
04/28/1999 | EP0910534A1 Helicopter rotor blade control device |
04/27/1999 | CA2143112C Fluid-and-elastomer device |
04/22/1999 | DE19745492A1 Vertical take off aircraft |
04/20/1999 | US5895012 Method and device for reducing the effect of the vibration generated by the driveline of a helicopter |
04/14/1999 | CN1214017A Composite cuff structure for helicopter rotors |
04/14/1999 | CN1214016A Axisymmetric elastomeric bearing assembly for helicopter rotors |
04/07/1999 | EP0857139B1 Aircraft |
04/06/1999 | CA1340478C Blade with a reduced vulnerability for rotorcrafts and process for producing the same |
04/01/1999 | WO1999015401A1 Helicopter blade with flap, and rotor control unit using the same |
04/01/1999 | WO1999015398A1 Ducted turbine |
03/31/1999 | EP0905019A2 Load-bearing structure |
03/25/1999 | WO1999014114A1 Inertial mass for vibration isolators |
03/25/1999 | WO1998026980B1 Hovering aircraft |
03/25/1999 | DE19741030A1 Model helicopter mechanism |
03/23/1999 | US5885059 Composite tip cap assembly for a helicopter main rotor blade |
03/18/1999 | WO1999012809A1 Rotor control system |
03/17/1999 | EP0901961A1 Rotorcraft rotor blade with reduced acoustic signature |
03/17/1999 | EP0901450A1 Monolithic structures having improved flaw tolerance |
03/09/1999 | US5879131 Main rotor system for model helicopters |
03/04/1999 | WO1999010877A2 Active noise control system for a defined volume |
03/04/1999 | WO1999010236A1 Gearbox with torque division, in particular for a helicopter rotor drive |
03/04/1999 | WO1999010235A1 Helicopter with a gyroscopic rotor and rotor propellers to provide vectored thrust |
03/04/1999 | WO1999010233A2 Vibration isolator for rotorcraft |
03/03/1999 | EP0899553A2 Method of monitoring an epicyclic gear assembly equipped with acceleration sensors in a vehicle, in particular a helicopter |
03/03/1999 | EP0898550A1 Hub for rotor head of rotary wing aircraft and rotor head with such hub |
02/25/1999 | WO1998026980A3 Hovering aircraft |
02/25/1999 | DE19736572A1 Helicopter rotor mast with divided drive unit |
02/24/1999 | EP0897492A1 Vibration isolated ring gear for planetary gear drive |
02/24/1999 | EP0897365A1 Helicopter swash plate with integrated pump |
02/24/1999 | CN1209087A Shaft phase control mechanism |
02/23/1999 | US5873546 System and method for conducting one engine inoperative flight procedures training in a dual-engine helicopter |
02/23/1999 | US5873545 Combined flying machine |
02/18/1999 | DE19802256C1 Steering control for helicopter rotor drive |
02/17/1999 | EP0896922A2 Helicopter transmission |
02/11/1999 | WO1999006499A1 Adhesive composition for hot bonding and bonding method using same |
02/09/1999 | US5868351 Rotor blade stowing system |
02/03/1999 | EP0894712A2 Helicopter rotor brake |
02/03/1999 | EP0894711A2 Releasable coupling for a helicopter tail rotor power transmission line |
02/02/1999 | US5865399 Tail Boom for aircraft |
02/02/1999 | CA1340376C Pale a faible signature radar |
01/28/1999 | WO1999003728A1 Method and device for assisting the pilot in controlling the turboshaft power and/or rotor speed of heat-propelled helicopters |
01/26/1999 | US5863181 Blade with shielding for enhanced protection against lightning, for rotocraft rotor |
01/21/1999 | WO1999002398A1 Structural component having means for actively varying its stiffness to control vibrations |
01/21/1999 | WO1998045886A3 High-efficiency, large stroke electromechanical actuator |
01/21/1999 | DE19814984A1 Rotor head for rotary wing craft |
01/21/1999 | DE19748707C1 Pivoting damper for airframe of helicopter |
01/20/1999 | EP0597038B1 Ducted fan and pitch controls for tail rotor of rotary wing aircraft |
01/13/1999 | EP0759128A4 Hybrid fluid and elastomer damper |
01/13/1999 | EP0740746A4 Vibration isolation system |
01/07/1999 | WO1999000298A1 Blade profile for aircraft rotor and rotor comprising same |
01/07/1999 | EP0889316A2 Method of monitoring a transmission assembly of a vehicle equipped with acceleration sensors, in particular a helicopter |
01/07/1999 | EP0889315A2 Method of monitoring, on the basis of signal energy, a transmission assembly of a vehicle equipped with acceleration sensors, in particular a helicopter |
01/07/1999 | EP0889314A2 Method of monitoring a transmission assembly of a vehicle equipped with acceleration sensors, in particular a helicopter |
01/07/1999 | EP0889313A2 A method of monitoring a transmission assembly of a vehicle equipped with acceleration sensors, in particular a helicopter |
01/07/1999 | EP0888964A1 Improvements to rotorcraft blade folding devices |
01/07/1999 | EP0888235A1 Composite cuff structure for helicopter rotors |
01/07/1999 | EP0888234A1 Axisymmetric elastomeric bearing assembly for helicopter rotors |
01/07/1999 | EP0790924B1 Pitch adjustment assembly for bearingless main rotors |
01/05/1999 | US5855709 Method of making a composite flow-straightener vane |
01/05/1999 | US5855471 Helicopter rotor brake assembly |
12/30/1998 | EP0887257A2 Airfoil with dynamic stall control by oscillatory forcing |
12/29/1998 | US5853152 Collective detent system for vertical takeoff flight operations |
12/29/1998 | US5853145 Rotor head for rotary wing aircraft |
12/29/1998 | US5853144 Helicopter and method for reducing vibration of a helicopter fuselage |
12/23/1998 | CN2301393Y Superlight rotor craft |
12/23/1998 | CN1202861A Hybrid aircraft |
12/17/1998 | WO1998056658A1 Reusable spaceship |
12/17/1998 | WO1998056656A1 Gyroplane rotor with double-plate hub and external pitch control |
12/15/1998 | US5850615 Rotor blade swashplate-axis rotation and gyroscopic moments componsator |
12/02/1998 | EP0881529A1 Unmanned remote controlled helicopter with cameras |
12/02/1998 | EP0830286B1 A hybrid composite flexbeam for a helicopter bearingless main rotor assembly |
12/02/1998 | EP0760777B1 A stacked compound planetary gear train for an upgraded powertrain system for a helicopter |
12/02/1998 | CN1200702A Aircraft |
12/01/1998 | US5842665 Launch vehicle with engine mounted on a rotor |
12/01/1998 | CA2055202C Snubber-bearing with combined elastomer laminates |
11/25/1998 | EP0771265B1 Method and apparatus for forming airfoil structures |
11/24/1998 | US5839691 Vertical takeoff and landing aircraft |
11/18/1998 | EP0878394A1 Rotor blade for rotary-wing aircraft |
11/17/1998 | US5836545 Rotary wing model aircraft |
11/12/1998 | WO1998030448A3 Rotor for rotary wing aircraft |
11/12/1998 | DE19748716C1 Rotor blade heater and lightning diverter for wind turbine operation in sub-zero conditions |