| Patents for B64C 27 - Rotorcraft; Rotors peculiar thereto (10,112) |
|---|
| 09/06/1992 | CA2060751A1 Adjustment means for helicopter rotor blade viscous damper |
| 09/03/1992 | WO1992014647A1 Control system of the rotor speed of rotation for helicopter drive assemblies |
| 09/02/1992 | EP0501659A1 Active vibration control systems |
| 09/02/1992 | EP0501658A1 Strut assemblies |
| 08/27/1992 | DE4105808A1 Axial damping for rotor blade - has toroidal hydraulic volume inside flexible bellows and piston damping in blade mounting |
| 08/26/1992 | EP0500012A1 Manufacturing process for a frequency adaptor |
| 08/25/1992 | US5141398 Rotary, viscoelastic drag elastic-return and damping device for a rotorcraft rotor blade |
| 08/25/1992 | US5141202 Active accumulator vibration absorbing support system |
| 08/20/1992 | DE4104614A1 Rotordrehzahl-steueranlage fuer helikopter-antriebsaggregate Rotor speed control system for helicopter-drive sets |
| 08/13/1992 | DE4207019A1 Variable pitch propeller or helicopter rotor - has torsionally flexible connections between blades and hub |
| 08/12/1992 | CN2112585U Helicopter without tail surface |
| 08/12/1992 | CN1017792B Airfoiled blade |
| 08/11/1992 | US5137427 Quiet tail rotor |
| 08/11/1992 | US5137228 Rotary wing with torsionally flexible blades |
| 08/06/1992 | WO1992012897A1 Control system for rotary-wing aircraft |
| 08/04/1992 | US5135442 Gear arrangement for transmitting torque through an angle |
| 08/04/1992 | US5135357 Main helicopter rotor |
| 08/04/1992 | US5135356 Swashplate anti-drive linkage for rotor controls of rotary wing aircraft |
| 07/30/1992 | DE4119985C1 Rotary body, partic rotor head drive diaphragm of helicopter rotor - comprises fibre composite U=shaped structure with varying wall thickness |
| 07/29/1992 | EP0496695A2 A unitary, multi-legged helicopter rotor flexbeam made solely of composite materials and the method of manufacturing same |
| 07/22/1992 | EP0495746A2 The method of manufacturing a dog-leg shaped ply of composite material and the tool used in the carrying out of the method |
| 07/22/1992 | CN1062876A Gyrocraft rotor hub body |
| 07/21/1992 | US5131604 Helicopter antitorque device |
| 07/21/1992 | US5131603 Rotary wing aircraft split segmented duct shrouded propeller tail assembly |
| 07/15/1992 | EP0494217A1 Active accumulator vibration absorbing system |
| 07/01/1992 | EP0493303A1 Quiet tail rotor |
| 07/01/1992 | EP0493195A1 Rotorcraft articulated rotor head with intermediate blade root cuff |
| 07/01/1992 | EP0493145A1 Rotor hub for a rotorcraft |
| 06/25/1992 | WO1992010403A1 Safety device for rotary-wing aircraft |
| 06/24/1992 | EP0491648A1 Articulated helicopter rotor with an improved blade-to-hub connection |
| 06/24/1992 | EP0491647A1 Snubber-bearing with combined elastomer laminates |
| 06/24/1992 | EP0491017A1 Safety device for helicopters and similar machines having rotors. |
| 06/23/1992 | US5123613 Rotary wing aircraft shrouded propeller tail assembly and controls |
| 06/18/1992 | CA2056190A1 Articulated helicopter rotor with an improved blade-to-hub connection |
| 06/17/1992 | EP0490805A1 Automated helicopter maintenance monitoring |
| 06/17/1992 | EP0490755A1 Power drive between a drive shaft and two driven units, in particular for rotor-powered aircraft |
| 06/17/1992 | EP0489871A1 System and method for suppressing noise produced by rotors |
| 06/16/1992 | US5121815 Emergency lubricating device for a reduction unit particularly for a main gear box of a rotary-wing aircraft |
| 06/09/1992 | US5120195 Clevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axis |
| 06/09/1992 | CA1303002C Bladed aircraft rotor with flexible blade mountings |
| 06/08/1992 | CA2055566A1 Automated helicopter maintenance monitoring |
| 06/03/1992 | EP0488845A1 Helicopter anti-resonant suspension device |
| 06/03/1992 | CN1061570A Reverse direction dlual rotation pushing style of rotating wing |
| 06/03/1992 | CN1061569A Jet-flow control style for rotorcraft, ship and boat |
| 06/02/1992 | US5118051 Roll vibration absorber |
| 06/02/1992 | US5117704 Elastomeric torsional isolator |
| 05/26/1992 | USRE33937 Active vibration isolation system |
| 05/26/1992 | US5116209 Device of retractable stops for rotor blades of giroplanes, and rotor head including such a device |
| 05/26/1992 | US5116201 Adjustment means for helicopter rotor blade viscous damper |
| 05/21/1992 | DE4036708A1 Arrangement for balancing rotor, esp. with hollow chamber - uses plate packet balance, wts. mounted in chamber either side of blade axis |
| 05/12/1992 | US5111676 Tool for selectively bending the trailing edge tab of a helicopter blade while simultaneously measuring the true degree of tab bending |
| 05/05/1992 | US5110260 Articulated helicopter rotor within an improved blade-to-hub connection |
| 05/05/1992 | US5110259 Pitch change bearing system |
| 04/29/1992 | EP0483049A1 An improved clevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axis |
| 04/29/1992 | EP0482932A1 Helicopter rotor blades |
| 04/29/1992 | EP0482788A1 Helicopter rotor blades |
| 04/29/1992 | CN2102882U Reverse double-rotary motivation system of revolving flank |
| 04/28/1992 | US5108044 Shroud-fin integration shelf for a helicopter empennage structure |
| 04/28/1992 | US5108043 Twin engine helicopter accesssory drive |
| 04/24/1992 | CA2052910A1 Clevis joint capable of accommodating substantial pivotal motion between its joined members and loading along its axis |
| 04/22/1992 | EP0481661A1 Helicopter rotor blades |
| 04/22/1992 | EP0471691A4 Annular body aircraft |
| 04/15/1992 | EP0480869A1 Elastomeric swashplate configuration for helicopters |
| 04/15/1992 | CN2101639U Delivery device |
| 04/12/1992 | CA2052429A1 Elastomeric swashplate configuration for helicopters |
| 04/07/1992 | US5102067 Integrated helicopter empennage structure |
| 04/07/1992 | US5101929 Vibration isolation support mounting system |
| 04/01/1992 | EP0478444A1 Rororcraft rotor head |
| 04/01/1992 | EP0478430A1 Friction jack |
| 04/01/1992 | EP0478429A1 Servo-controlled actuator |
| 03/31/1992 | US5100294 Helicopter rotors |
| 03/24/1992 | US5098033 Gyroplane with tilting mast |
| 03/17/1992 | US5096380 Composite flexbeam for a bearingless helicopter rotor |
| 03/17/1992 | CA1297312C Link-type rotary coupling |
| 03/05/1992 | WO1992003337A1 Fuel line installation in helicopters |
| 03/03/1992 | US5092738 Flexbeam helicopter rotor with improved snubber-vibration damper between the torque tube and the flexible spar member |
| 03/03/1992 | US5092539 Jam resistant ball screw actuator |
| 02/26/1992 | EP0471691A1 Annular body aircraft |
| 02/25/1992 | US5091029 Method of manufacturing a unitary, multi-legged helicopter rotor flexbeam made solely of composite materials |
| 02/20/1992 | WO1992002413A1 Process and device for balancing non-stationary cyclic forces in rotary systems |
| 02/05/1992 | EP0469510A1 Method and apparatus to compensate for unsteady force changes in rotary systems |
| 02/04/1992 | US5085315 Wide-range blade pitch control for a folding rotor |
| 02/04/1992 | CA1295310C Helicopter blade airfoil |
| 01/29/1992 | EP0468547A2 Active vibration isolation system |
| 01/28/1992 | US5083725 Elastomeric swashplate configuration for helicopters |
| 01/22/1992 | EP0467813A1 Driving and lifting unit for rotorcraft and rotorcraft equipped with it |
| 01/21/1992 | US5082079 Passively stable hovering system |
| 01/09/1992 | DE4029279A1 Lightweight rocket propulsion aggregate - esp. for helicopter blade tip motor and operation using monergolic and/or hypergolic propellant and catalyst pack |
| 01/07/1992 | WO1992000876A1 Safety device for helicopters and similar machines having rotors |
| 01/07/1992 | CA2066401A1 Safety device for helicopters and similar crafts |
| 01/07/1992 | CA1293961C V tail inclined streamlined antitorque rotor steering and stabilizing device and helicopter equipped with such a device |
| 12/31/1991 | US5076517 Programmable, linear collective control system for a helicopter |
| 12/24/1991 | US5074753 Rotor blade |
| 12/24/1991 | US5074494 Elastomeric swashplate configuration for helicopters |
| 12/23/1991 | WO1992000467A1 Linkage rod |
| 12/23/1991 | CA2085129A1 Linkage rod |
| 12/18/1991 | EP0461296A1 Circulation control slots in helicopter yaw control system |
| 12/17/1991 | US5072895 Cargo platform assembly mounted to a helicopter |
| 12/10/1991 | US5071383 Radio-controlled flying apparatus |
| 12/10/1991 | US5071319 Low maintenance, advanced technology swashplate |