| Patent Number |
Title Of Patent |
Date Issued |
| 5284723 |
Electrochemical energy storage devices comprising electricaly conductive polymer and their uses |
February 8, 1994 |
| The invention relates to electrochemical energy storage devices containing a composition comprising an electrically conductive polymer based on polypyrrole, substituted or otherwise, and ionic groups which comprise an R-sulphate or R-sulphonate group, R denoting an alkyl or aryl radical. |
| 5245474 |
Electromagnetic filter device |
September 14, 1993 |
| The optical filter device comprises a stack of thin layers exhibiting a sequences h and g which defines a fractal organization. This device makes it possible to obtain spectrum lines which are extremely fine and very well resolved. |
| 5202009 |
Electrolyte solid polymer reticule |
April 13, 1993 |
| A cross-linked polymer solid electrolyte of a polyether having amine functions cross-linked by a curing compound including two epoxy functions, and thereby defining a three-dimensional lattice which complexes an ionizable salt of the formula M.sup.+ X.sup.-, where M.sup.+ is selected |
| 5194714 |
Method and device for outside plasma deposition of hydroxyl ion-free silica |
March 16, 1993 |
| Method of outside plasma deposition onto a rod (17,22) of silica substantially free from hydroxyl ions, possibly doped to change its refractive index, by reaction with oxygen of a silicon compound and possibly of doping compounds, in the presence of a gas plasma raised to a very high |
| 5117930 |
Intervention vehicle for rough ground with supporting force sensors |
June 2, 1992 |
| The vehicle is supported on the ground by tiltable propulsion units carried by a vehicle body. The vehicle includes force sensors for forming force signals representative of the forces applied to each propulsion unit from the vehicle body. Support signal forming means receive and process |
| 5116808 |
Tape based on a superconducting oxide, and method of manufacture |
May 26, 1992 |
| A tape based on a superconducting oxide containing Cu-O, the tape being characterized by the fact that it comprises a substrate of flexible metal or composite material having a rectangular cross-section and provided on at least one of its faces with a cavity-free film of perovskite type |
| 5111898 |
Variable configuration intervention vehicle for rough ground |
May 12, 1992 |
| The vehicle comprises a vehicle body, propulsion units whereby the body bears against the ground by applying support forces thereto that can be represented by support parameters, propulsion unit displacement actuators for displacing the propulsion units relative to the vehicle body. Supp |
| 5090979 |
Method of manufacturing an optical fiber preform having doped cladding |
February 25, 1992 |
| According to the present invention, a preform (7) for an optical fiber is made from a tube having a substrate layer (16) of fluorine-doped silica and a support layer (18) of non-doped silica. A cladding layer (8) of fluorine-doped silica and a core layer (10) of non-doped silica are form |
| 5007016 |
Fractal-type periodic temporal signal generator |
April 9, 1991 |
| A signal generator generates a temporal signal with a periodic configuration defined by an arrangement of seed patterns resulting from a branching construction iteratively using laws for composing several patterns and consisting in defining the periodic configuration of the signal as |
| 4965746 |
Recursive-type periodic temporal signal generator |
October 23, 1990 |
| The temporal signal generated has a periodic configuration defined by an arrangement of seed patterns resulting from a branching construction employing n successive applications of m pattern type laws each defined by a specific arrangement of p pattern types. This construction amounts to |
| 4906370 |
Tangential filtration apparatus |
March 6, 1990 |
| Rotating membrane tangential filtration apparatus with low power consumption is characterized by a direct drive system (10) along the axis of its membrane (5), a sealing system (11, 16) between the residue and filtrate compartments, which system used frictional ceramic parts; the dia |
| 4873695 |
Laser with discharge in a turbulent transverse flow |
October 10, 1989 |
| An active gas based on CO.sub.2 penetrates under pressure into a discharge chamber (20) via injection orifices (10) formed through the upstream face of said chamber. These orifices leave considerable solid portions (22) about themselves in said face such that the gas forms jets which div |
| 4862100 |
Gas laser generator |
August 29, 1989 |
| Gaseous flux laser generator of the nitrogen and carbon dioxyde type. The dimensions of the enclosure and the conditions of injection of the nitrogen and those of the electrical supply are chosen to set up a luminescent discharge in a swirling flow. |
| 4843059 |
Superconductive mixed valence copper oxide, and method of making it |
June 27, 1989 |
| A superconducting mixed valence copper oxide, having a formula of the type:where:0.ltoreq.x<0.30.ltoreq.x'.ltoreq.0.2 with x'<x0.ltoreq.x".ltoreq.10<y.ltoreq.0.10.ltoreq.e.ltoreq.0.005. |
| 4840442 |
Multidielectric mirror for carbon dioxide laser providing the mid infrared, in high reflectance |
June 20, 1989 |
| A multidielectric mirror, in particular for the mid infrared, in which the last optical layer of a multidielectric stack is constituted by a composite layer including a thin protective surface layer of a material of amorphous structure together with a high index and very low absorption |
| 4814575 |
Method of surface-treating ceramic workpieces using a laser |
March 21, 1989 |
| A carbon dioxide laser (4) directs a beam (6) onto a ceramic workpiece to be treated (18), which workpiece moves along arrow (20). A carrier gas injector (14) injects a moderate throughput of spheroidized powder of a ceramic material into said beam. After melting and solidifying, the lay |
| 4763009 |
Method and apparatus for remotely measuring the distribution of a physico-chemical parameter in |
August 9, 1988 |
| The invention relates to a method and to apparatus for remotely measuring the distribution of a physico-chemical parameter in a medium. The method consists in exciting measurement points (20) situated in a medium (17) in succession via an optical fiber (18), with each point (20) being ex |
| 4745592 |
Coherent photonic telecommunications system |
May 17, 1988 |
| The system comprises subscriber stations (1, 2) each comprising a semiconductor laser generator (4) provided with means (3, 5) for modulating its laser output by means of transmit signals and a heterodyned detection system consisting of a photoelectric receiver (15) optically coupled |
| 4708801 |
Method and device for filtering a suspension of particles in a liquid |
November 24, 1987 |
| In a method and device for filtering a suspension of particles in a liquid the liquid is passed continuously through a porous membrane, particles from the suspenion gradually accumulating on the membrane and clogging its pores. The filtered liquid is caused to flow momentarily in the rev |
| 4706257 |
Gas laser generator and method of operating same |
November 10, 1987 |
| The generator comprises an optical cavity (3, 4) resonating according to an axis (2) and two annular electrodes (5, 6) disposed along said axis, one of said electrodes (5) being provided with gas injection channels (9, 10) having injection axes (11, 12) directed toward the other electrod |
| 4699083 |
Molecular beam generator using thermal decomposition for manufacturing semiconductors by epitaxy |
October 13, 1987 |
| Arsine or phosphine are thermally decomposed to form a molecular beam of arsenic or phosphorous by using the inside surfaces of a thermal decomposition duct (11) made of quartz or of boron nitride and heated on the outside by radiation from a filament (30). Pierced internal partitions |
| 4695480 |
Method and apparatus for drawing a tape constituted by a support coated in a layer of semiconduc |
September 22, 1987 |
| The method consists in clamping the edges of the tape between two jaws of a clamp and in displacing the clamp vertically upwardly. The apparatus includes two vertical columns (10, 11) along which two carriages (12, 13) are capable of moving, with each carriage having a corresponding clam |
| 4683448 |
High sensitivity interferential electro-optical modulator |
July 28, 1987 |
| High sensitivity interferential electro-optical modulator. The invention concerns an interferential electro-optical modulator. This modulator contains a Mach-Zehnder integrated interferometer in which each interferometer arm (24, 26) is overlapped by an electrode (40, 42), itself sur |
| 4670752 |
Hard-wired circuit for handling screen windows |
June 2, 1987 |
| The window handler circuit is inserted between an image memory (7) having as many pages as there are possible windows and a screen controller capable of reading from any of the pages of the image memory. The handler comprises two auxiliary memories (3, 4) each of which stores bit maps in |
| 4647376 |
Device for removing the liquid phase from a suspension |
March 3, 1987 |
| A device for abstracting the liquid phase from a suspension comprises a microporous membrane (23) applied on the outside of a microporous body (22) to which a flat capillary duct (11, 18) is fixed. Means (9) are provided to rotate the duct about a vertical axis, with the membrane being |
| 4616595 |
Device for depositing a layer of silicon on a carbon tape |
October 14, 1986 |
| It comprises a receptacle containing a bath of molten silicon, the bottom of the receptacle includes a slot (7) through which there passes a tape (9) which is drawn vertically through the bath. The vertical wall of the slot (7) is downwardly flared, the horizontal section of the slot (7) |
| 4577588 |
Device for process-type deposition of polycrystalline silicon on carbon film |
March 25, 1986 |
| A crucible containing molten silicon, has a strip of carbon film vertically transported through the melt, an optical system imaging a small area of the silicon surface onto a photodetector, said image area being that of the silicon liquid-solid interface, and a servo system connected to |
| 4556614 |
Method of producing a polymer based solid electrolyte for an electrochemical cell |
December 3, 1985 |
| A method of producing a solid electrolyte for an electrochemical cell, the cell comprising at least one first complexing polymer presenting in its monomer pattern at least one heteroatom and at least one ionizable alkaline salt complexed in the said polymer, wherein said complexing p |
| 4509174 |
Capacitor discharge excited gas laser |
April 2, 1985 |
| The laser comprises a gas-filled channel (51) extending between a pair of metal plates (2 and 3). The laser is excited by a spark discharge through the gas from one plate to the other. The energy for the spark comes form a pair of built-in capacitors extending between the plates on eithe |
| 4495631 |
Gas laser in which the gas is excited by capacitor discharge |
January 22, 1985 |
| A gas laser in which the gas is excited by laser discharge, said laser including two capacitors formed by two parallel metal plates (2, 3) between which two dielectric parts (4,5) are spaced apart to form a passage (6) which contains the laser gas. It further includes a transformer ( |
| 4487689 |
System for filtering a liquid |
December 11, 1984 |
| First and second identical filters (6, 20) are connected in series. A backpressure unit (30) for intermittent backwashing is connected to the outlet from the second filter. Means are provided for measuring or setting the pressure P.sub.1 at the inlet to the first filter, the backpressure |
| 4487661 |
Method and device for determining the physical characteristics of a semiconductor material |
December 11, 1984 |
| In a method for determining the physical characteristics of a silicon wafer, one side of the wafer (4) is removably fixed to the base (2) of a container (1) so as to close off a hole (3) therein. An electrical connection to this side of the wafer (4) is made thru the hole (3). The wa |
| 4485334 |
Spark gap apparatus comprising a plurality of pairs of electrodes in parallel |
November 27, 1984 |
| A plurality of electrodes (7, 10) are arranged along two rows facing each other in pairs, leaving a spark gap in between the rows of electrodes. Each row comprises a plurality of electrodes connected in parallel. The electrodes are in a gas. The problem is to trigger simultaneous arcs |
| 4478880 |
Method of fabricating polycrystalline silicon strips |
October 23, 1984 |
| A fabrication method for use in making photocells consisting in depositing on the top face of a carbon ribbon (4) being moved horizontally in its lengthwise direction through an oven (9) a layer of silicon, said oven being imparted a vertical temperature gradient, and in burning away the |
| 4407908 |
Cathode for an electrolyser |
October 4, 1983 |
| A cathode for an electrolyser. It comprises porous conductive material which includes sintered nickel impregnated with a catalyst, characterized in that said catalyst is a molybdate of nickel or iron or mixtures thereof. The invention is used for manufacturing hydrogen by electrolysing |
| 4385801 |
Fibre-to-fibre connector including a component for joining it to an optical cable |
May 31, 1983 |
| The invention relates to a fibre-to-fibre connector including a component for joining it to an optical fibre cable. A flat connector with two parallel layers of fibres (18) is easily connected to a round multi-fibre optical cable (12) due to the fact that it includes a separable joining |
| 4375685 |
Gas laser assembly which is capable of emitting stabilized frequency pulse radiations |
March 1, 1983 |
| The invention relates to a gas laser assembly which is capable of emitting stabilized frequency pulse radiation. Said arrangement includes a first continuous gas laser generator and a second pulse gas laser generator, an optical system (19, 56, 20) to inject the continuous beam (18) emit |
| 4330496 |
Method of sintering tubular ceramic parts |
May 18, 1982 |
| A tubular ceramic part is formed with a shoulder at an open end of the part, the tubular part is inserted in an opening provided in a horizontal plate which is disposed inside a sintering chamber so that the part is kept suspended in the chamber by means of the shoulder which rests again |
| 4307350 |
Gas laser |
December 22, 1981 |
| The gas laser includes in particular a cathode (2) which is substantially cylindrical about an axis (10) parallel with the axis of the laser cavity, said cathode being provided with protrusions (11) formed by grooves in which insulated conductor wires (12) are disposed, said wires being |
| 4297420 |
Electrode for a lead accumulator |
October 27, 1981 |
| The invention relates to an electrode for a lead accumulator. It includes an electronically conductive core coated with an active material which contains grains of lead monoxide, lead sulphate and a binding agent which is suitable for forming a three-dimensional thread-like network, |
| 4265539 |
Device which measures the mutual coherence function of a laser beam |
May 5, 1981 |
| A device which measures the mutual coherence function of a laser beam. The device includes: a screen 1 in which openings 3 to 11 are disposed on the path of the beam 2 and allow pencils of light 19, 29 and 34 to pass; an interferometer constituted by an optical plate 13, a dihedron 14 an |
| 4258335 |
Gas laser |
March 24, 1981 |
| The invention relates to a gas laser which comprises a flat plate transmission line, for laser excitation formed by an insulating plate (1) placed between two charged metal plates (2,3,7). The line also includes a semi-conductor layer (13) disposed on a surface of the insulating plate to |
| 4223078 |
Lithium electric cell |
September 16, 1980 |
| A lithium electric cell. Said electric cell includes a positive electrode (1) and a negative electrode (2) in contact with a liquid electrolyte impregnates in a separator (3). The positive electrode comprising an active compound whose general formula is Li.sub.x Fe.sub.2 S.sub.z with x |
| 4211570 |
Method of manufacturing beta alkaline alumina parts |
July 8, 1980 |
| A method of manufacturing beta alkaline alumina parts and in particular beta sodium alumina parts in which the following successive steps are carried out:A. Alumina powder and an alkaline carbonate powder are intimately mixed together in quantities such that a predetermined ratio Al.sub. |
| 4211474 |
Ultra-rapid electro-optical shutter |
July 8, 1980 |
| An ultra-rapid electro-optical shutter comprises an electro-optical crystal which receives an incident beam and is able to transmit it when an electric field is applied thereto. The crystal has an electrode disposed on one of its surfaces, with a first silicon joint disposed between two |
| 4208451 |
Bipolar electrode for an electrolyzer |
June 17, 1980 |
| A bipolar electrode for an electrolyzer. It is characterized in that the anode surface and the cathode surface of said electrode both comprise a porous conductive material which includes sintered nickel previously impregnated with nickel molybdate. The invention is used for manufacturing |
| 4205225 |
Method of generating an electric pulse of predetermined shape and application to cutting out a p |
May 27, 1980 |
| An electrical pulse of predetermined waveform is generated to control an electro-optical shutter to cut out a portion of predetermined waveform from a laser pulse passing therethrough. The electrical pulse is generated across the plates of a capacitor. A DC source is connected directly t |
| 4190812 |
Laser head |
February 26, 1980 |
| A high-power laser head has a neodymium-doped glass rod as its active material and a source of light for exciting the glass rod to make it amplify laser radiation at 1.06 microns wavelength. The light source tends to illuminate the outer portions of the rod better than its axial zone |
| 4187165 |
Bipolar electrode for an electrolyser |
February 5, 1980 |
| A bipolar electrode for an electolyser. It is characterized in that the anode surface and the cathode surface of said electrode both comprise a porous conductive material which includes sintered nickel previously impregnated with nickel molybdate. The invention is used for manufacturing |
| 4184930 |
Electrolyzer for basic solutions |
January 22, 1980 |
| An electrolyzer for basic solutions. This electrolyzer is characterized by the fact that the anode comprises a porous conductive material comprising sintered nickel impregnated with a quantity of nickel hydroxide such that the proportion by weight between the nickel hydroxide and the nic |
