Patents Assigned to Societe Nationale Industrielle et Aerospatiale
  • Patent number: 6431490
    Abstract: A process and apparatus for depositing simultaneously by winding on a support, several rovings of pre-impregnated fibers. The rovings are deposited simultaneously by winding on a rotating support. At least two rovings are brought into superposition near where they will be applied to the support, and the various rovings are subjected to different tensions depending on their position relative to the support. Specifically, the roving nearest the support is subjected to a greater tension than a roving farther from the support. Composite structures are thus produced.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: August 13, 2002
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Fran├žois Monget, Patrick Decraecker
  • Patent number: 6198461
    Abstract: An antenna reflector for a spacecraft includes a radial slot which facilitates stowage of the reflector in the spacecraft. When the reflector is in a folded position, opposing edges of the radial slot overlap in such a way that the reflector assumes an at least approximately conical shape, thereby allowing the reflector to be housed in a casing so as to be oriented vertically in line with the spacecraft.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: March 6, 2001
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Nathalie Chieusse, Christophe Prud'Hon, Guillaume Cautru, Christian Ducourthial, Cyril Metz
  • Patent number: 6182928
    Abstract: The invention concerns a method for placing an artificial satellite on a geostationary orbit injected on said orbit by a launch vehicle. The method is characterised in that the assembly consisting of the last stage (L) of said launch vehicle and satellite (S) be injected on the geostationary orbit (G) is first directly sent on a circular orbit (C), called extinction orbit, near the geostationary orbit, but sufficiently distant therefrom to avoid possible interferene with space objects already on the geostationary orbit (G), the satellite (S) is separated from said last stage (L), which stays on said extinction orbit (C), and the satellite (S) reaches the geostationary orbit (G) from said extinction orbit (C).
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: February 6, 2001
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Alain Wagner
  • Patent number: 6131855
    Abstract: The present invention relates to an air inlet cowl (9) for a jet engine. According to the invention, provided in the partition (20) delimiting the de-icing chamber (21) in the hollow leading edge (16) of the cowl is a trough-shaped duct (22) for ejecting to the outside pressurized hot air which has flowed through the chamber (21). The duct (22) is reduced in cross section by a single oblong orifice (18) made, parallel to the leading edge (16), in a part (23) that forms part of the external surface (9E) of the cowl (9).
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: October 17, 2000
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Alain Porte
  • Patent number: 6116019
    Abstract: The present invention relates to a shut-off system for an orifice for introducing combustion air into a ramjet with a consumable auxiliary motor (14).According to the invention, this shut-off system comprises:an elastic system (28, 29, 31, 32) connected to the shut-off flap (20A, 20B); anda retaining element (33) for keeping the said elastic system in the said tense state during the initial phase of rocket operation, the said retaining element being sensitive to the hot gases emitted by the said consumable auxiliary motor (14) so that on completion of combustion thereof, the said retaining element (33) releases the said elastic system which spontaneously changes from its tense state to its relaxed state, bringing the said flap from its shut-off position to its open position.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: September 12, 2000
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Michel Hallais, Vincent Protat
  • Patent number: 6104408
    Abstract: The present invention relates to a process and to a device for determining the contour of valleys of a specified geographical area. According to the invention, said device comprises:means for determining the hydrographic net of the geographical area which is presented in a first matrix which includes, at each point liable to form part of a watercourse, a characteristic code designating said watercourse;means for forming a second matrix which includes at each point the altitude of the corresponding part of said geographical area; andmeans for determining, from said first and second matrices, the contours of the valleys.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: August 15, 2000
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Christian Taupin, Celine Boucton, Etienne Epitalon, Coralie Fritz
  • Patent number: 6088632
    Abstract: An engine control system for a first aircraft belonging to a family of aircraft which includes at least a second aircraft, the first aircraft having a maximum mass which is greater, within a predetermined limit, than that of the second aircraft. For an engine of the first aircraft, a first thrust command law controls a thrust of an engine of the first aircraft during take-off phase (T), and a second thrust command law, controls a thrust of the engine to correspond with a part of the thrust command laws applicable to the second aircraft during all other flight phases (R) of the first aircraft. The transition from one flight phase to another is detected to supply the engine with a control signal corresponding to one or the other of the first thrust command law or the second thrust command law.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: July 11, 2000
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Patrick Zaccaria, Patrice Ostermann
  • Patent number: 5951808
    Abstract: A method for producing a high dimensional precision composite element using ionization polymerization and an element made by such method. The element includes a support panel flanked on at least one side with a skin fixed by an adhesive resin and including at least one lap of organic or mineral fibers and an organic linking matrix. The method includes placing at least one lap of fibers preimpregnated with an ionization polymerizable resin on a mold to form the skin, the mold having a predetermined shape and dimensions for the element to be produced; placing a film of an ionization polymerizable adhesive resin on the skin; placing the support panel on the film to form a skin/film/panel unit, the support panel having a predetermined thickness; compacting the skin/film/panel unit; and polymerizing the polymerizable resins during the compacting by subjecting the skin/film/panel unit to ionization.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: September 14, 1999
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Dominique Lacour, Sylvie His, Fran.cedilla.ois Raut, Christian Desagulier, Nathalie Chieusse
  • Patent number: 5853260
    Abstract: A rotation center type joint has a one-piece body with an inner part, an outer part and a plurality of elastically deformable transverse arms inclined relative to the axis of the body, linking the inner and outer parts and converging towards the rotation center.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: December 29, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Laurent Curbillon, Jean-Marc Pellissier
  • Patent number: 5829253
    Abstract: To command notably the unclamping and the separation of two components, on a spacecraft, such as a satellite or a probe, a single actuation pushing device (10) is driven by a form memory device (36) positioned in a casing (12), between a wall (18) of the latter and a boss (24). It is linked to a heater (38). A system to prevent mistakes (20, 26, 32), sensitive to a displacement of the component (24) caused by an elongation of the device (36), prevents assembly of the pushing device (10) when it has already been actuated.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: November 3, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Christian Fernand Louis Long, Gerard Albert Pierre Vezain
  • Patent number: 5827993
    Abstract: A pyrotechnic ignition device for a gas generator (G), in which: (i) at least in the vicinity of the primary charge (CP), the transmission line (L) is at least substantially perpendicular to the longitudinal axis (X--X) of the outer case (E) of the generator (G); (ii) the end of the transmission line, provided with a deflagrating terminal lead charge (r), emerges in a sealed intermediate chamber (CI); and (iii) the intermediate chamber (CI) is connected to the primary charge (CP) via at least one throttling vent (e) having an axis (1--1) at least approximately parallel to the longitudinal axis (X--X) of the outer case (E).
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: October 27, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Jean-Francois Beau
  • Patent number: 5776383
    Abstract: Method for producing a shaped part made of a graphitized carbon/carbon composite material in which a compound of carbon fibers is prepared impregnated with a solution of carbon precursors and then cut into sections placed in a mould subjected to a carbonization stage by means of hot unidirectional pressing, wherein, so as to prepare the compound, the fiber is subjected to a heat deoxidation and oil removal treatment followed by a softening in a bath for increasing wettability and hooking and then impregnation in a bath formed of an aqueous solution containing pitch mesophase, high-yield pitch and a binder, the required sufficient calculated amount of compound being placed in bulk in a hot constant volume pressing mould so as to accurately fill the mould at the end of pressing before carrying out said carbonization, the moulded part finally being graphitized at a high temperature. Applications include the aeronautic and spatial fields.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Jean-Louis Darrieux, Jean-Marc Nicolas Pascal Donzac
  • Patent number: 5770053
    Abstract: A draining apparatus drains and dries hydraulic equipment such as aircraft circuits. The draining equipment includes a reservoir connected to the equipment by a suction line. (Venturi 20) which produces a vacuum in the reservoir responsive to compressed air injected by a line from an external compressed air source. If a calibrated valve is connected to an inlet of the equipment then a branch line of the equipment supplies part of the compressed air to the inlet connection of the equipment so that pressure which enters the equipment is inadequate to produce an overpressure at an outlet.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: June 23, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Henri Chotel, Max Roger, Alexis Albin
  • Patent number: 5734516
    Abstract: A device for accurately positioning the vertex of a secondary mirror (5) off-centered with respect to that of a primary mirror (3) of a telescope (1). The secondary mirror (5) is connected to a support (8). The connection (9) includes two radial and crossed elongate connecting members (10) which extend on either side of the support (8) (along a first direction X--X and a second direction Y--Y) passing through the center (0) of the support, corresponding to the vertex (5A) of the secondary mirror (5). Each of the connecting members (10) is longitudinally rigid and transversely flexible. Each of the connecting members is capable of being controlled, in order to move along its longitudinal extent by an actuation device (11).
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: March 31, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Frederic Noel Sayede
  • Patent number: 5722510
    Abstract: A unit for controlling the retraction of a mobile structure such as a mirror used for calibrating an optical system on board a spacecraft, which includes a spring which permanently forces the mobile structure towards its retracted position and a memory material member, wherein a change of state of the memory material disconnects a connecting system placed in a transmission mechanism normally connecting a control motor to the mobile structure. The connecting system normally ensures the joining by friction of two parts of the transmission mechanism between which the spring acts. A heating system controls the change of state of the memory material member.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: March 3, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Daniel Viale
  • Patent number: 5722617
    Abstract: An adjustable seat of a vehicle such as an aircraft, comprises a fixed baseplate, the top plate of which is mounted on two lower components by two hinged joints. These hinged joints define two pins oriented parallel to the plane of the top plate, in the vehicle's transverse and longitudinal directions respectively. Moreover, one of these hinged joints is placed at the apex of a triangle, the opposite side of which is coincident with the pin of the other hinged joint. The integrity of the bed of the seat is thereby preserved in the event of twisting of the floor.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: March 3, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Laurent Cecinas
  • Patent number: 5722616
    Abstract: A rotary actuator (16) has an inner body (32) forming a rotor and at least one outer body (34) forming a stator. The inner body (32) and outer body (34) carry blades (40,44) arranged in an alternating manner and defining between them two series of variable volume chambers. The cross-section of the chambers and the height of the triangular blades (40,44) decreases from one end to the other, as a result of a substantially frustum-shape of the inner body (32). Such an actuator (16) can be used for controlling an aircraft rudder or control surface and it is then positioned along the articulation axis of the rudder or control surface.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: March 3, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventor: Yves Durand
  • Patent number: 5688320
    Abstract: Aluminum nitride whiskers are produced by reducing alumina with carbon in a nitrogen atmosphere, at a temperature of 1800.degree. to 2000.degree. C., in the presence of a growth activator containing a solvent element, according to a process that essentially comprises the step of periodically feeding, through the working area of a horizontal furnace equipped with a graphite heating device, counter to a flow of nitrogen, a graphite container charged with a mixture of alumina, carbon and carbonyl iron, as a growth activator, which is present in an amount capable of implementing the VLS mechanism, the time taken by the container to pass through the working zone being in the range of 20 to 120 minutes.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: November 18, 1997
    Assignees: Societe Nationale Industrielle et Aerospatiale, VIAM-ALL Russian Institut of Aviation Materials
    Inventors: Vladimir Nikolaevich Gribkov, Boris Vladimirovich Shchetanov, Eric Loguinovitch Umantsev, Vladimir Alexandrovich Silaev, Yurii Alexeevich Gorelov, Piotr Phiodorovich Lyasota
  • Patent number: 5686687
    Abstract: A mechanical ejector device includes a sliding piston, a transverse lever articulated to a first fixed axis and to a first mobile axis coupled axially to the piston and including a second mobile axis, a first link articulated to a second fixed axis and including third and fourth mobile axes, a transverse actuator rod articulated to the third mobile axis to displace the latter in a single displacement direction and a second link articulated to the second mobile axis and to the fourth mobile axis. The fixed and mobile axes are parallel. The first link and the second link form a deformable assembly having an intermediate configuration in which the piston is in its service position.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: November 11, 1997
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Jean Viala, Jean-Claude Bohas, Yves Florentin, Serge Chicot
  • Patent number: 5653407
    Abstract: A satellite stabilized about a roll axis, a yaw axis and a pitch axis, for travel on an orbit with geocentric pointing towards a heavenly body, embodying a body and a solar generator adapted to collect solar radiation, characterized in that the generator includes a single wing supported in a medium portion by an arm extending at least approximately along the yaw axis away from the heavenly body, the arm being connected to the body by a single rotation mechanism with a single rotation axis substantially parallel to the yaw axis, the wing having a constant inclination .alpha. to the yaw axis.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: August 5, 1997
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Philippe Bertheux, Jerome Jarlier, Guy Darmon, Sylvain Le Muet