Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 4805422 | Machine for knitting composite reinforcements In this machine, rows of rods (R12, R32, R43, R23) representing the woof threads are circulated in passages A, B, C defined between filaments (86) forming concentric open l... | 02/21/1989 |
| 4744849 | Method for manufacturing a mold for producing molded parts of large size and of a composite material A molding cavity wall (10) is made in a plurality of parts of a cheap material having a high thermal conductivity, for example a thin metal sheet (10), at least one heating device (11) is applied on the wall in direct thermal exchange relation to the exte... | 05/17/1988 |
| 4677379 | Process and device for the detection of cracks in riveted joints using an eddy current probe The present invention relates to a process and device for the non-destructive examination of riveted joints or the like, particularly for monitoring the fuselage of an aircraft. According to the invention, an eddy current probe is used and two rectangular... | 06/30/1987 |
| 4659056 | Electrically heated light-weight concrete mold A mold having a concrete base and a mold cavity member lined with sheet metal. Adjacent the sheet metal are electric heating means and between the electric heating means and the concrete base is a light-weight concrete insulating layer.... | 04/21/1987 |
| 4656703 | Machine for producing complex objects by multidirectional deposition of thread The invention concerns the production of three-dimensional thread packages. Vertical rods (11) are maintained in a stationary arranged network by engagement through perforated plates (12,13). A thread (10) is deposited from above this network by a shuttle... | 04/14/1987 |
| 4644619 | Method for producing complex objects by multidirectional deposition of thread The invention concerns the production of three-dimensional thread packages. Vertical rods (11) are maintained in a stationary arranged network by engagement through perforated plates (12,13). A thread (10) is deposited from above this network by a shuttle... | 02/24/1987 |
| 4603796 | Closing and filling unit for a tank containing a fluid under pressure A closing and filling unit having a piston valve (22) whose closure member (28) is provided with axial openings. A rotatable and slidable element (32) is provided for actuating the valve. Arrangements (35, 40, 41, 33, 36) are provided for utilizing the pr... | 08/05/1986 |
| 4537374 | Structural supports and aircraft landing gears including such supports A structural support comprises inner and outer elements which are telescopingly engaged, a cage secured to the inner element and having apertures in which balls are disposed which are disposed radially between the two elements, and a frangible connection ... | 08/27/1985 |
| 4516686 | Pressure balancing device which is watertight as concerns rainwater or trickling water, in particular for a transporting container The device comprises a chamber 9 having an outer wall 10 and an inner wall 12 which separates it from the container, the chamber 9 communicating with the exterior through at least one orifice 16, 16a, 16b, 16c in the outer wall 10 and with the interior of... | 05/14/1985 |
| 4500057 | Mechanism for docking and joining space craft The present invention relates to a mechanism for docking and joining space craft, whereby one craft may be captured by remote control then hauled in towards the other, to which it is then joined. According to the invention, this mechanism is characterized... | 02/19/1985 |
| 4492096 | Hollow reinforcements of revolution made by three-dimensional weaving method and machine for fabricating such reinforcements The invention concerns the production of deformable hollow reinforcements of revolution by a three-dimensional weaving. In a network of rods 18 held and rotated about a vertical axis 11 by rotary perforated plates 52, 53, 54, there are inserted in oblique... | 01/08/1985 |
| 4489373 | Non-dissipative LC snubber circuit Non-dissipative snubber for a D.C. power switching circuit comprising a main inductance connected in series with a load, a controlled switch, an inductance, and a D.C. voltage source. The snubber includes a branch circuit including a capacitor, a first di... | 12/18/1984 |
| 4487730 | Process for draping layers of composite materials A process and apparatus for stacking layers of composite material on moulding equipment comprises a transfer band on which each of two opposed working sections has a surface suction device to hold on it a layer that has been placed in a precise position i... | 12/11/1984 |
| 4473203 | Disengageable control column for a copilot of an aircraft The invention relates to a control column (2) for a copilot of an aircraft, coupled for control of roll and pitch by a linkage (5) to the pilot's control column (1). This linkage comprises two parallel rods (6,7) pivoted on the one hand to the column (1) ... | 09/25/1984 |
| 4469356 | Connecting device and method Process for providing a rigid pipe, particularly made of light alloy, with a connecting section comprising a projecting peripheral bead, whereby a reinforcing sleeve is firstly positioned at a free end of said pipe, after which said end provided with its ... | 09/04/1984 |
| 4464429 | Semi-finished product based on fibers preimpregnated with polymerizable resin The invention relates to a semi-finished product based on fibers preimpregnated with polymerizable resin, which is intended for the manufacture of components made of composite materials and having a variety of shapes, in particular long and/or thick compo... | 08/07/1984 |
| 4459579 | Process and device for detecting the under-inflation of a tire of the landing gear of an aircraft Process for detecting the under-inflation of a tire of the landing gear of an aircraft in the course of taxiing, said landing gear being formed by at least one bogie comprising a beam provided with a pair of twin wheels at each of its ends provision is ma... | 07/10/1984 |
| 4426053 | Mechanical release device for example for satellite A mechanical release device for releasing a member with respect to another. The device comprises a bonding element disposed on each of the members to be released, a flexible junction element placed on the bonding elements and a device permitting under the... | 01/17/1984 |
| 4407633 | Helicopter rotor Rotary-wing aircraft rotor comprising a rigid hub coupled to the root of each blade in which a trailing return brace comprises a stack of metal plates alternating with plates of visco-elastic material the ends of which being coupled via a ball joint respe... | 10/04/1983 |
| 4386989 | Method for producing a bendable and twistable element and such an element produced thereby A bendable and twistable element having a high level of tensile strength, while remaining flexible and bendable in respect of twisting is produced by individually forming in a mould unitary layers of resin impregnated cut lengths of a continuous member, w... | 06/07/1983 |
| 4363525 | Magnetically suspended rotating bodies Rotary bodies possessing, in common, radially passive and axially active magnetic centering devices, eddy current dampers, emergency support systems, a drive motor and a motor switching sensor, and an axial velocity sensor to send correction signals to th... | 12/14/1982 |
| 4361415 | Rotary-wing aircraft rotor having a compact articulated hub The invention relates to a rotary-wing aircraft rotor. The rotor comprises a hub 1 connected to each blade 7a by a rigid yoke 8-9 gripping the root of blade 7a and a spherical abutment 17 secured at its center C to radial arms 5a, 6a of hub 1 and bearing on it... | 11/30/1982 |
| 4345485 | Temporary locking device for inertia wheel A temporary locking device for a rotor of an inertia wheel, sustained, with respect to a stator, by magnetic means and associated with two emergency bearings having a conical bearing surface for each said emergency bearing. A complementary conical bearing... | 08/24/1982 |
| 4325586 | Electromagnetic process for controlling orientation of a platform and platform for carrying out said process Electromagnetic method and apparatus to accurately control the orientation of a platform according to two axes wherein pivoting of the platform about two orthogonal axes passing through its center is effected by electromagnetic means, with the servo-contr... | 04/20/1982 |
| 4323884 | Digital-analog interface for insertion between a digital control signal transmitter and a controlled moving element This invention relates to a digital-analog interface for insertion between the control circuit of a moving element and a transmitter of digital control signals. This interface comprises an inductive detector of the actual position of the moving element. T... | 04/06/1982 |
| 4304525 | Helicopter rotor Rotary-wing aircraft rotor comprising a rigid hub coupled to the root of each blade in which a trailing return brace comprises a stack of metal plates alternating with plates of visco-elastic material the ends of which being coupled via a ball joint respe... | 12/08/1981 |
| 4300807 | Method and device for balancing rotary bodies with passive radial and active axial magnetic suspension and for orienting their axis of rotation A method and device for balancing magnetically suspended bodies wherein at the axial ends of the bodies are included two centering devices on the rotor side constituted by centered and excentric magnetic rings facing two centering devices on the stator si... | 11/17/1981 |
| 4298417 | Method of manufacturing a helicopter rotor blade A rotor blade, specially for a helicopter rotor, which blade is made of reinforced plastics and a process for making this blade in a single molding operation. This blade comprises: a solid one-piece leading edge spar embodied by strands of glass fibre fil... | 11/03/1981 |
| 4289448 | Device for limiting the flapping movements of a rotary-wing aircraft main rotor This invention concerns devices for limiting the flapping movements of the blades of a rotary-wing aircraft main rotor. The device described has a well known reciprocal ring lower abutment common to all the blades. The disadvantages of this well known arr... | 09/15/1981 |
| 4281967 | Resonator device for damping the vibrations of a rotor of a rotary-wing aircraft The invention relates to a device for damping the vibrations of a rotary-wing aircraft rotor. An annular weight is disposed concentrically of the rotor axis. This weight is supported by at least three resiliently deformable elements such as helical spring... | 08/04/1981 |
| 4281966 | Multi-blade propellers A variable-pitch, multi-blade propeller specially usable as a rear rotor of a rotary-wing aircraft and a process for manufacturing the same are described. The propeller comprises a number of pairs of blades emanating from a central hub, each pair comprisi... | 08/04/1981 |
| 4273511 | Main rotor for a helicopter The invention relates to a rotor, specially for a helicopter. This rotor comprises a plurality of blades connected to a rotor hub by flexible, twistable, substantially radial strips, surrounded by tubular rigid sleeves. Rigid rings are secured to the inne... | 06/16/1981 |
| 4268222 | Equipment for folding the blades of a main helicopter rotor The invention relates to equipment which makes it possible to fold the blades of a rotor, in particular of the type comprising a star-shaped hub with arms flexible in the direction perpendicular to the plane of the star-shaped hub. This equipment comprise... | 05/19/1981 |
| 4263819 | Inertial method of centering a constantly circular rim on its hub and corresponding rotary device The invention relates to an inertial method and device enabling the centering of a circular rim on its hub to be ensured and giving a practical solution to the problem of the static and dynamic balancing of rotors. The device comprises a rim, a hub, at le... | 04/28/1981 |
| 4262596 | Overhead attack missile A overhead attack missile for targets of little movement such as tanks or firing turrets is described. It comprises: at least one hollow charge, with a unidirectional radial action possessing a pyrotechnic dissymmetry means such as the off-centering of th... | 04/21/1981 |
| 4255084 | Device for damping the vibrations of a rotary-wing aircraft rotor The invention relates to a device for damping the vibrations of the rotor of a rotary-wing aircraft. This device comprises a flapping weight concentrated near the rotor axis and at least three resiliently deformable elements, such as helical springs. The ... | 03/10/1981 |
| 4155524 | Device for the synchronized unfolding of articulated elements carrying solar cells in a panel formed by a series of articulated elements Synchronized angular displacement of articulated elements of an outwardly-extendable solar-cell panel is carried out by means of a device mounted between any two successive panel elements constituting a driving element and a driven element. Two independen... | 05/22/1979 |
