| Patent Number |
Title Of Patent |
Date Issued |
| 6400283 |
Altitude and vertical speed indicator for aircraft |
June 4, 2002 |
| In an altitude and vertical speed indicator for aircraft, an altitude indicator includes a graduated scale vertically mobile past a fixed marker and a vertical speed indicator includes a pointer rotatable about the point of intersection of a straight line segment through the fixed marker |
| 6123290 |
Helicopters equipped with jet dilution/deflection means for the combustion gases |
September 26, 2000 |
| This relates to a helicopter in which the outlet nozzle from the turbine engine is provided with an exhaust pipe which mixes the combustion gases with fresh air and directs the mixture downward. Viewed from the outside of the helicopter, the exhaust pipe is completely concealed by a cowl |
| 6035531 |
Method for manufacturing a variable-pitch composite blade for a helicopter rotor |
March 14, 2000 |
| The method includes the following steps: producing a preform of the blade comprising a blade root section for connecting to a hub and an aerodynamically profiled main blade section, the preform including, in the blade root section, a pile of fabrics transverse to the span axis of the |
| 6023668 |
Process and device for determining the flight configurations of an aircraft |
February 8, 2000 |
| A process and system for determining the flight configurations of an aircraft are disclosed. The process includes the steps of defining various possible flight configurations of the aircraft, determining a plurality of flight phases representative of the flight configurations, determinin |
| 5952976 |
Helicopter furnished with a high-frequency radiocommunication system |
September 14, 1999 |
| The objective of the invention is to compensate for the attenuation, in a direction (X,X), of the radiation from an antenna (5) mounted on a helicopter (1), including elements (12) which disturb the propagation of electromagnetic waves. According to the invention, at least one conducting |
| 5903970 |
Machine for connecting connection elements into connectors |
May 18, 1999 |
| The invention relates to a device and to a machine connecting connection elements into housings of connectors. The device includes; a body (17) which can be moved in the direction of said connector; 4 an insertion tool (18) which is associated, via removable link-age means (22), with sai |
| 5895012 |
Method and device for reducing the effect of the vibration generated by the driveline of a helic |
April 20, 1999 |
| Method for reducing the effect of the vibration generated by the driveline of a helicopter. The helicopter includes at least one rotor, the collective pitch of the blades of which can be controlled by a control system. The values of at least one parameter representing the effect of t |
| 5890677 |
Device for de-icing an external wall of a vehicle |
April 6, 1999 |
| A device for de-icing an external wall of a vehicle, of the type including a flexible covering (8) capable of at least partially covering the wall, and a compressor (9) whose delivery orifice (9B) is connected to the flexible covering in order to inflate it, via a control component (10). |
| 5863667 |
Element made of composite material with assembly (assemblies) for electrical continuity through |
January 26, 1999 |
| The subject of the invention is an element made of composite material comprising an organic matrix which is reinforced with mineral or organic fibres, as well as at least one assembly with partial superposition of at least two electrically conductive elongate members, which assembly is |
| 5863181 |
Blade with shielding for enhanced protection against lightning, for rotocraft rotor |
January 26, 1999 |
| An apparatus for shielding a blade against lightning includes a conducting component forming a leading edge glove and a conducting cover, for protecting the blade tip across its entire chord. Mechanical devices, such as screws and rivets with protruding shapes, in addition to some gluing |
| 5855709 |
Method of making a composite flow-straightener vane |
January 5, 1999 |
| The composite vane is molded by injecting resin into a preform of layers of reinforcing fibers according to the RTM method. The skins of its main vane section as well as of its root and tip via which it is connected to the flow-straightener central body and to part of the duct are lamina |
| 5831429 |
System for detecting and monitoring the rotational speed of at least one rotor and the rotationa |
November 3, 1998 |
| The system detects and monitors the rotational speed N.sub.R of a rotor and the rotational speed N.sub.TL of a motor of a helicopter and includes first and second devices for detecting N.sub.R and N.sub.TL, and delivering signals to first and second processing units which are connect |
| 5828437 |
Eye protection device |
October 27, 1998 |
| A device placed by a support in front of the eyes of a user protects them against luminous aggression, in particular by a laser beam. The device includes a light attenuation system to attenuate the intensity of the received beam by a particular attenuation value. A light amplification |
| 5820341 |
Device with retractable double anti-cone stops ring, and rotor head including it |
October 13, 1998 |
| The device includes anti-cone stops projecting outward from at least two coaxial rings that can rotate about the rotor axis on the top face of the hub. Flyweights are each mechanically joined to one of the rings by a mechanism for driving the latter in rotation from the "ground" position |
| 5814963 |
Device for damping the vibrations of a structure subjected to dynamic stresses |
September 29, 1998 |
| The present invention relates to a device (1) for damping the vibrations of a structure (2) subjected to dynamic stresses, of the type including a main mass (3) mounted on an elastic plate (4) which is itself fitted into the structure (2) whose vibrations are to be damped.According to th |
| 5813626 |
Suspension device for a transmission box of a rotary-wing aircraft |
September 29, 1998 |
| The present invention relates to a suspension device for a transmission box (BT) of a rotary-wing aircraft, including bearing pieces (2) connected to the upper part (3) of the transmission box (BT), a suspension system (SU) which connects the lower part (9) of the transmission box (BT) t |
| 5788182 |
Bidirectional antivibration suspension device for helicopter rotor |
August 4, 1998 |
| The bidirectional suspension comprises, in order to connect the transmission gearbox to the fuselage, two parallel connecting rods which are articulated to lateral supports on opposite sides of the base of this gearbox and on the same side of the latter as far as their articulations |
| 5782606 |
Device for folding a rotorcraft rotor blade |
July 21, 1998 |
| The folding device comprises a fitting pivoting on a cuff about a folding axis which is offset laterally thanks to two lateral bearings of the fitting journal-mounted about bushings retained in lateral devises of the cuff and which are coaxial about the axis by pegs for centering a m |
| 5782430 |
Device for antivibratory suspension of a helicopter rotor |
July 21, 1998 |
| The suspension device comprises, for linking the base (5b) of the transmission gearbox to the fuselage (6), two parallel rods (14), articulated (15) onto lateral supports (16) fixed to opposite sides of the base (5b) and extending on the same side of the transmission gearbox to their |
| 5779062 |
Device for positioning, locking and extracting mobile equipment with respect to a fixed support |
July 14, 1998 |
| Device for positioning, locking, and extracting mobile equipment with respect to a fixed support, of the type including two slideway elements 1, 2, one 1 of which is secured to the mobile equipment E and the other 2 of which is secured to the fixed support S, these elements 1, 2 being |
| 5775637 |
Device for reducing the vibrations on the structure of a helicopter |
July 7, 1998 |
| A device for reducing the vibrations generated on the structure of a helicopter. The helicopter includes a structure with a tail boom and a fin. The structure has a longitudinal vertical mid-plane. The helicopter also has a main lift and propulsion rotor which generate an aerodynamic |
| 5769606 |
De-icing connection installation for rotorcraft rotor |
June 23, 1998 |
| The installation links a supply conductor to an electrical device for de-icing a blade using at least one cable with a first stretch linked to the supply conductor by a connector and to a second stretch with an overhead hook in the form of flattened half loop, itself linked to the de |
| 5746398 |
Force-gradient cyclic stick system for a helicopter |
May 5, 1998 |
| A cyclic stick system for a helicopter includes sensors for measuring at least one parameter representative of the current flight status of the helicopter. In response to the at least one parameter, the cyclic stick system either (1) continuously and automatically recenters the forces on |
| 5738301 |
Rotary-wing aircraft of the compound type, and rear structural element for such an aircraft |
April 14, 1998 |
| The present invention relates to a rotary-wing aircraft, especially such as a helicopter, of the compound type including:a fuselage (2),fixed-wing elements (6) arranged on either side of said fuselage (2),at least one main rotor (4),an anti-torque rear rotor (9), anda rear thruster propeller (14 |
| 5732905 |
System for minimizing the dynamic excitation of a helicopter |
March 31, 1998 |
| System for minimizing the dynamic excitation at the center of gravity of the fuselage of a helicopter, this excitation being brought about by the forces transmitted between the main transmission box and the fuselage, these two components being joined together by suspension bars which eac |
| 5716193 |
Installation for affording electrical continuity for rotorcraft rotor |
February 10, 1998 |
| The installation for removing electrostatic charge and passing lightning current between a conductor of each blade of the rotor and a metallic part of the hub comprises at least one conductive member integral with the member for linking the blade to the hub in its angular deflections, an |
| 5702171 |
Device for illuminating a set of equipment items which are mounted on a common support |
December 30, 1997 |
| Device for illuminating a set (1) of equipment items (3), such as indicators or dials of measurement apparatus (4), which are mounted on an outer face (2E) of a common support (2).According to the invention, this device includes:an electroluminescent plate (5), arranged in such a way that it |
| 5693896 |
Test rig for rotors of gyrocraft |
December 2, 1997 |
| The rig comprises a vertical electric motor in a shell-type framework carrying a force balance itself supporting either a main rotor in dynamic tests or a complete propulsion assembly with main rotor in endurance tests, or a height extender supporting, on the one hand, an upper shaft |
| 5692705 |
Anti-crash seat with harness for an aircraft |
December 2, 1997 |
| The invention relates to an anti-crash seat with harness for an aircraft.The seat is mounted with limited sliding on at least one substantially vertical support (8), integral with the structure of said aircraft and associated with at least one energy-absorbing device (12), located between |
| 5682335 |
Method and device for simultaneous identification and correction of errors in the measurements o |
October 28, 1997 |
| The present invention relates to a method and a device for correcting measurement errors of a magnetometer mounted on a vehicle. According to the method, a theoretical corrective model is defined in accordance with the following equation: ##EQU1## where [A], [C]i and Hp are eleme |
| 5654635 |
Method and device for simultaneous identification and correction of errors due to magnetic pertu |
August 5, 1997 |
| The present invention relates to a method and to a device (1) for correcting measurement errors of a magnetometer (2) mounted on a vehicle (3). According to the invention:a theoretical corrective model [A].Hm+a.Hm'+Hp=[M].H is defined, in which [A], a and H are elements to be determined, |
| 5639214 |
Vibration damping apparatus for helicopter rotor |
June 17, 1997 |
| An apparatus has at least one pendulous member mounted on a rotor so as to be able to swing about an axis of pendular motion spaced at a distance from the center of inertia of the pendulous member. The pendulous member is pivotably mounted on its own axis of rotation parallel to the axis |
| 5634611 |
Counter-torque device with rotor and flow straightening stator, both of which are ducted, and in |
June 3, 1997 |
| A flow-straightening stator is fixed into the duct downstream of the rotor mounted so that it rotates in this duct, and includes vanes with aerodynamic profile which straightens out the airflow downstream of the rotor substantially along the axis of the duct, and are each inclined to |
| 5619797 |
Flow-straightener vane for counter-torque device with ducted rotor and ducted flow-straightening |
April 15, 1997 |
| A method of manufacturing a vane for a counter torque device includes extruding a hollow metal section of cross-section corresponding to the aerodynamic profile of the vane, in cutting off a section portion of length not substantially less than the span of the vane, and in arranging |
| 5605440 |
Flow-straightener vane made of composite, flow-straightener including it, for a counter-torque d |
February 25, 1997 |
| The composite vane is moulded by injecting resin into a preform of layers of reinforcing fibres according to the RTM method. The skins of its main vane section as well as of its root and tip via which it is connected to the flow-straightener central body and to part of the duct are lamin |
| 5588801 |
Flap stops device with retractable upper stops ring, and rotor head including it |
December 31, 1996 |
| The device comprises anti-cone stops projecting outwards from a common ring that can rotate about the rotor axis on the top face of the hub and flyweights are each individually joined to the ring for driving the latter in rotation from the "ground" position, in which each anti-cone stop |
| 5588618 |
Counter-torque device with rotor and flow-straightening stator, both of which are ducted, and ph |
December 31, 1996 |
| A flow-straightener with stationary vanes and aerodynamic profile is mounted downstream of the rotor with blades in the transverse duct passing through the fairing at the tail of the helicopter. The blades of the rotor are distributed angularly about the axis of the rotor with uneven azi |
| 5566907 |
Counter-torque device with ducted rotor and phase modulation of the blades, for helicopter |
October 22, 1996 |
| The blades of the rotor which can rotate in the transverse duct have an angular distribution according to an uneven azimuth modulation given by the following sinusoidal law:where .THETA.n is the angular position of the nth of the blades counted in series from an arbitrary origin, b is th |
| 5562415 |
Pitch-control devices for hingeless rotors |
October 8, 1996 |
| For each blade, the cuff which is rigid in torsion, surrounding the corresponding rotor attachment twistable arm, bears two opposed pitch levers each articulated to one respectively of two intermediate connecting rods which are moreover articulated to one and the same transmission lever |
| 5562264 |
Fuselage structure for helicopter |
October 8, 1996 |
| The invention relates to a helicopter fuselage of the type including a central structure to which are linked a front structure, a rear structure and a landing gear, and which supports a transmission gearbox, a main rotor and at least one engine (50), and of the type in which the central |
| 5558539 |
Method and device for providing electrical continuity of cable shielding |
September 24, 1996 |
| An electrical connection element intended for the electrical connection of shielded bundles of electrical cables wherein at least some of the electrical cables are shielded. The connection element is composed of an outer tube and an inner tube. The outer robe has a hollow interior space |
| 5555175 |
Method and device for assistance with the piloting of an aircraft |
September 10, 1996 |
| The present invention relates to a method of assisting the piloting of an aircraft at low altitude. According to the invention, a hypothetical curve associated with an optimal theoretical trajectory for clearing an obstacle is calculated and, in the field in front of the aircraft: all th |
| 5542818 |
Ducted Anti-torque rotor with floating blades |
August 6, 1996 |
| In the rotor, the pitch lever of each blade is connected to the tab of the pitch control spider by a ball joint mounted on a wrist pin and received with clearance in an oblong opening in a ring. The axially offset bearing surfaces of the cuff of the blade are mounted with a radial cleara |
| 5504990 |
Device for connecting connection elements into connectors |
April 9, 1996 |
| A device and a machine for connecting connection elements into housings of connectors, the device including a body which can be moved in the direction of the connector, an insertion tool associated with the body via removable linkage means and provided with means for gripping a connectio |
| 5498129 |
Counter-torque device with ducted tail rotor and ducted flow-straightening stator, for helicopte |
March 12, 1996 |
| The rotor is supported within the duct by a stationary flow-straightener with vanes connecting the wall of the duct to a central body housing the mechanism for driving the rotor. This mechanism is surrounded by a casing equipped with radial arms bearing removable means for fastening to a |
| 5483865 |
Aircraft sighting system |
January 16, 1996 |
| The present invention relates to a sighting system for an aircraft, in particular a rotary wing aircraft such as a helicopter. According to the invention, the sighting system comprises, in combination, an observation first individual apparatus integrated in the sides of the aircraft, and |
| 5454693 |
Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and |
October 3, 1995 |
| The blade has its lower-surface and upper-surface skins of its shell, its front and rear filling bodies and its spar made of a composite material having the same thermoplastic matrix, preferably made of PEEK, reinforced preferably with carbon fibres. The spar is extended outside the shel |
| 5454691 |
Flow-straightener vane for counter-torque device with ducted rotor and ducted flow-straightening |
October 3, 1995 |
| The vane (9) comprises a hollow metal central part forming its main vane section (24) and the vane (9) root (17) and vane (9) tip (18) are each arranged as an end fitting (25, 28) equipped with at least one transverse tab (26, 29) for fastening the vane (9). The method of manufacture |
| 5437564 |
Electrical connector provided with a plurality of connection modules |
August 1, 1995 |
| Electrical connector (CE) including a module carrier (PM) and a wiring chamber which are adjacent. The wiring chamber consists of two shells (C1, C2) which can be joined together, as well as to the module carrier (PM). Ducts (CH), consisting of two half-ducts which can be joined long |
