baber/WOPTO huggingface dataset:
Patent FR-2588171-A1 (FR)
Title: Retractable seat, in particular rear seat of motor vehicle
Inventor: CHASTANIER MICHEL
IPC: B60N2/70
Filed: 1985-10-08
Abstract: The invention relates to a retractable seat, in particular a rear seat of a commercial motor vehicle, comprising a mat 1 forming a backrest and a mat 2 forming a cushion, characterised in that each mat 1, 2 has one of its ends 3, 4 fastened over its whole length to a rolling-up device 5, 6 integral with the body 8 and its opposite end 9, 10 ending over its whole length in a rigid part 11, 12 forming a hook capable of being fastened in a removable fashion to a part 13, 14 integral with the said body 8 of the vehicle.
Patent FR-2588728-A1 (FR)
Title: Work glove
Inventor: LAURENT FRANCOIS
IPC: A41D19/015
Filed: 1985-10-21
Abstract: Work glove. The inner face of the fingers carries strips 2-5 of a self-gripping (touch-and-close) product so as to fasten an abrasive cloth carrying, on the back, a corresponding self-gripping (touch-and-close) product. Application to sanding-down and to polishing.
Patent FR-2590237-A1 (FR)
Title: Container for drinks provided with a drinking straw which ejects automatically on opening.
IPC: B65D77/28
Filed: 1985-11-20
Abstract: The subject of the invention is a drink container. It comprises means of automatically ejecting the straw 1 when the said container 6 is opened and the said drinking straw 1 is provided with means of increasing its length in order to suck up all of the drink 10 when the level is very low. Drink container.
Patent FR-2574600-A1 (FR)
Title: Switch unit with plug connector
Inventor: KUHN HEINZ J
IPC: H01R13/707
Filed: 1985-12-06
Abstract: The switch (10), which is connected to its electrical circuit by a plug (16), has a lever (42) with a pin (24) at one end, and is hinged (44) on the switch contact housing (12). The housing also has a slot (20,22) into which the pin (24) is moved by a spring (26) when the plug (16) is removed. In this position the switch is locked, and cannot be operated by its knob or dolly (13). The plug has a projecting finger (30) which bears on one end of the lever (42). When the plug is pushed in and is fully home the finger (30) depresses the lever (42) to the point where the pin (24) is lifted out of its slot (20,22). The switch can then be operated. If the plug is not home, for example loosened by vibration, the pin enters the slot and the switch is locked out.
Patent FR-2592650-A1 (FR)
Title: New phenylnaphthyridines functionalised in position 3, process for their preparation, and medicaments which contain them, especially antiulcer medicaments
Inventor: TEULON JEAN-MARIE
IPC: C07D471/04
Filed: 1986-01-06
Abstract: Products of formula: in which - X: represents a hydrogen atom, an alkyl or cycloalkyl radical, a halogen, a methoxy, a thiomethyl or a nitro and can be in position 5, 6 or 7 of the naphthyridine. - Y can be: an alkenyl or an alkynyl a chain -(CH2)n-S-(CH2)m-CH3 or -(CH2)n-S-(CH2)m-CH3 (n and m being numbers between 0 and 5) a chain (CH2)n-O-(CH2)m-CH3 (n and m defined as above) a chain -(CH2)n-OH or one of its esters (n defined as above) a chain -(CH2)n-CHOH-(CH2)m-CH3 or one of its esters (n and m defined as above) a chain -(CH2)n-CO-(CH2)m-CH3 (n and m defined as above) a phenyl, pyridyl, thiophene or furan ring. - Z and W represent a hydrogen atom, a halogen, a lower alkyl group containing 1 to 5 carbon atoms, a methoxy, a thiomethyl, a trifluoromethyl, a nitro, a cyano or an alkylcyano, - and the medicaments which contain them.
Patent FR-2593066-A1 (FR)
Inventor: BERGHE DIRK A VANDEN
IPC: A61K31/35
Filed: 1986-01-17
Abstract: The compositions have, in particular, antiviral activity.
Patent FR-2592790-A1 (FR)
Title: Cosmetic preparation having a regenerative and anti-wrinkle action
IPC: A61K8/60
Filed: 1986-01-16
Abstract: Cosmetic preparation having a regenerative and anti-wrinkle action.   This preparation is intended for skin care. The preparation is characterised by the use of homeopathically diluted products which may be employed in combination.
Patent FR-2576788-A1 (FR)
Title: Compositions pharmaceutiques a base de 3-aminopropoxyindoles
Inventor: SCHUTZ WALTER
IPC: A61K31/405
Filed: 1986-01-30
Abstract: L'INVENTION CONCERNE DES COMPOSITIONS PHARMACEUTIQUES APPROPRIEES POUR L'ADMINISTRATION A DES INTERVALLES SUPERIEURS A 24HEURES DANS LE TRAITEMENT DES TROUBLES CARDIO-VASCULAIRES ET COMPRENANT UN COMPOSE DE FORMULEI: (CF DESSIN DANS BOPI) DANS LAQUELLE R SIGNIFIE L'HYDROGENE OU UN GROUPE BENZOYLE, AINSI QUE LES COMPOSITIONS PHARMACEUTIQUES CONTENANT UN COMPOSE DE FORMULEI EN COMBINAISON AVEC LA CHORTHALIDONE OU L'INDAPAMIDE.
Patent FR-2595623-A1 (FR)
Title: Rotary offset printer intended for making a print on a continuously travelling web
Inventor: KAKKO-CHILOFF NICOLAS
IPC: B41F13/30
Filed: 1986-03-17
Abstract: The present invention relates to a rotary offset printer intended for making a print on a continuously travelling web, especially a paper web. This printer is characterised in that the bearings 11 of the upper form cylinder 3 and the bearings 12 of the intermediate blanket cylinder 4 are fastened together by means 19, 21, 22 allowing a slight vertical displacement between them, so as to form, together with the form 3 and blanket 4 cylinders and their bearings, a one-piece assembly constituting a transversely removable cassette, and the bearings 11, 12 of the form 3 and blanket 4 cylinders are normally spaced apart by springs 23 exerting between the two cylinders a force greater than the weight of the upper form cylinder 3 and of its bearings 11.
Patent FR-2596468-A1 (FR)
Inventor: CALMETTES LIONEL
IPC: F16L33/02
Filed: 1986-03-27
Abstract: The invention relates to a clamp constituted by a band of metal comprising, at each one of its ends, complementary tightening and/or fastening means, whereas the inner end of the band comprises an extension which goes beyond the corresponding fastening means, under the outer end of the band. In this clamp, the transversal edge of the band, which constitutes the free end of the extension, has a profile indented into the band, such as an  OMEGA -shaped profile, whereas close to its outer end, and on this side of the corresponding tightening and/or fastening means, said band comprises an elongated boss, which projects from its inner face, and is adapted to penetrate into the indented profile of the free end of the extension, said boss having its maximum height substantially equal to the thickness of the band.
Patent FR-2599791-A1 (FR)
Title: Procede de fixation resistante et etanche d'un element cylindrique creux a l'interieur d'un tube et element cylindrique pour la mise en oeuvre de ce procede
Inventor: CARTRY JEAN-PIERRE
IPC: F16L13/16
Filed: 1986-06-04
Abstract: ON DEPOSE SUR LA SURFACE EXTERNE DE L'ELEMENT CYLINDRIQUE 1, DANS AU MOINS DEUX ZONES DE FORME ANNULAIRE, UN MATERIAU D'UNE DURETE SUPERIEURE A LA DURETE DU TUBE 3 ET A CELLE DE L'ELEMENT CYLINDRIQUE 2. CE MATERIAU CONSTITUE AU MOINS DEUX ANNEAUX SUCCESSIFS 2. ON INTRODUIT L'ELEMENT CYLINDRIQUE 1 A L'INTERIEUR DU TUBE 3 PUIS ON REALISE L'EXPANSION PUIS LE SERTISSAGE DE L'ELEMENT CYLINDRIQUE 1 AU MOINS DANS SA PARTIE COMPORTANT LES ANNEAUX DE MATERIAU DE REVETEMENT DUR 2. ON REALISE AINSI L'INCRUSTATION DES ANNEAUX 2 DE MATERIAU DE REVETEMENT A LA FOIS DANS L'ELEMENT CYLINDRIQUE 1 ET DANS LE TUBE 3.
Patent FR-2600162-A1 (FR)
Title: Pressure detector with adjustable threshold
Inventor: MANDERSCHEID DANIEL
IPC: G01L9/04
Filed: 1986-06-12
Abstract: The invention relates to a pressure detector with adjustable threshold. The detector comprises a manometric diaphragm 1 subjected to the pressure Pi to be detected, pressure transducer means coupled to the diaphragm 1. The transducer means 2 generate an electric signal representing the applied pressure Pi. Means 3 for electronically processing the electric signal allowing the comparison of the value of the electric signal delivered by the transducer means 2 with at least one adjustable threshold value. Application of the pressure detector, during the running of an industrial process, to signalling clogging defects of filters or the like.
Patent FR-2600377-A1 (FR)
Title: Dispositif de controle des debits d'air de refroidissement d'une turbine de moteur
Inventor: KERVISTIN ROBERT
IPC: F01D5/08
Filed: 1986-06-18
Abstract: LES ALVEOLES PREVUES DANS LES DISQUES 1, 2, 3 COMPORTENT DES PASSAGES 10, 11, 12 POUR L'AIR DE REFROIDISSEMENT. CES PASSAGES SONT OBTURES PLUS OU MOINS TOTALEMENT PAR DES MOYENS D'OBTURATION 26, 27 PORTES PAR LES EXTREMITES DES PORTE-LABYRINTHES 16, 17. LES PORTE-LABYRINTHES SONT DU TYPE EN EPINGLE ET SONT SUSCEPTIBLES DE SE DILATER SOUS L'EFFET DE LA TEMPERATURE DU FLUX DE GAZ TRAVERSANT LA TURBINE. LES POSITIONS DES MOYENS D'OBTURATION DEVANT LES PASSAGES SONT DETERMINEES PAR LE DIMENSIONNEMENT AINSI QUE PAR LES COEFFICIENTS DE DILATATION THERMIQUE RESPECTIFS DES DISQUES ET PORTE-LABYRINTHES PERMETTANT D'OBTENIR LE PLEIN DEBIT D'AIR, OU UN DEBIT REDUIT OU ENCORE UN REFROIDISSEMENT DU PREMIER DISQUE SEULEMENT.
Patent FR-2601133-A1 (FR)
Title: Device for measuring pressures, and in particular high pressures
Inventor: BEAUFRONT JACQUES
IPC: G01L9/00
Filed: 1986-07-01
Abstract: The present invention relates to a device for measuring pressures, and in particular high pressures. This device comprises a sensitive element, called a thick-film piezoresistive element 2, applied to an insulating non-deformable substrate 1, variations in electrical resistance of the said sensitive element immersed in the medium 6 to be measured, as a function of the pressure, being measured by a conventional electrical circuit of the Wheatstone bridge or similar type.
Patent FR-2587775-A1 (FR)
Title: Dispositif absorbant les variations de couple, notamment pour moteur d'automobile ou d'avion
Inventor: KOBAYASHI KIYONORI
IPC: F16F15/12
Filed: 1986-09-11
Abstract: LE DISPOSITIF DE L'INVENTION COMPREND UN PREMIER VOLANT 32, UN SECOND VOLANT 36, UN MECANISME A RESSORTS 12, UN MECANISME AMORTISSEUR ET LIMITEUR DE COUPLE 15 ET UN MECANISME A HYSTERESIS 18. LE MECANISME A HYSTERESIS COMPORTE UNE PLAQUE DE FRICTION 19 ET UN RESSORT CONIQUE 20 INTERPOSES ENTRE LES PREMIER ET SECOND VOLANTS. LA PLAQUE DE FRICTION COMPREND UNE GARNITURE DE FRICTION 19A ET UN ANNEAU PLAT 19D FIXE A LA GARNITURE. L'ANNEAU PLAT COMPORTE UN MOYEN DE LIAISON DEVANT ETRE CONNECTE A UN MOYEN DE CONNEXION DES PREMIER OU SECOND VOLANTS. UN ESPACE EST FORME ENTRE LA GARNITURE ET LE MOYEN DE CONNEXION ET PAR CONSEQUENT, LORSQUE LA GARNITURE EST FIXEE A L'ANNEAU PLAT PAR UN MOYEN TEL QU'UNE OPERATION DE COMPRESSION A CHAUD OU UN ADHESIF, L'ESPACE EVITE QUE LE MATERIAU DE LA GARNITURE NE S'ECOULE AVANT DURCISSEMENT ET QUE L'ADHESIF NE SE REPANDE SUR LE MOYEN DE CONNEXION. DANS L'AGENCEMENT DU DISPOSITIF, LA FORCE DE FROTTEMENT DE LA PLAQUE DE FRICTION EST GENERALEMENT OBTENUE DE MANIERE CONSTANTE PAR LE RESSORT CONIQUE LORSQUE LA PLAQUE S'EST USEE. PAR CONSEQUENT, LE MECANISME D'HYSTERESIS PERMET D'OBTENIR UNE HYSTERESIS STABLE. APPLICATION AUX MOTEURS D'AUTOMOBILE OU D'AVION.
Patent FR-2603724-A1 (FR)
Title: Protection and alarm device using an optoelectronic beam with continuous infrared radiation
IPC: G01V8/12
Filed: 1986-09-09
Abstract: The invention relates to a device making it possible to obtain IR radiation from a very low strength of current, thus obtaining a very considerably enhanced useful range. The system consists of the electronic card 1 connected to its mains power supply 2. The IR emission assembly 3 consisting of a rigid body 3-3 of calculated length and of a lens 3-2 with high magnification emits, from diodes 3-1, rays towards the IR receiver assembly 4. These rays, on contact with the lens 4-2 are concentrated and directed onto the IR reception diode 4-1. This diode is also at a calculated distance from the lens, a distance physically represented by the dimensions of the tube 4-3. In the event of breaking of the beam, a relay 5 activates, via the mains, a light system and (or) a sound system.
Patent FR-2588381-A1 (FR)
Title: Appareil de controle par balayage optique de materiaux en bandes
Inventor: WEBER KLAUS
IPC: G01N21/892
Filed: 1986-09-23
Abstract: L'INVENTION CONCERNE UN APPAREIL DE CONTROLE PAR BALAYAGE OPTIQUE DE MATERIAUX EN BANDES. DANS LEDIT APPAREIL, UNE TACHE LUMINEUSE EST ENGENDREE DANS LA PUPILLE D'ENTREE 13 D'UN SYSTEME DE BALAYAGE, OU BIEN L'IMAGE D'UN DIAPHRAGME MATERIALISE 28 DE FORME CORRESPONDANTE EST REPRODUITE SUR UN DIAPHRAGME COMPLEMENTAIRE 16 A FOND NOIR REALISE, DE PREFERENCE, LEGEREMENT PLUS GRAND QUE L'IMAGE DE LA TACHE LUMINEUSE. CE DIAPHRAGME 16 EST GARNI CIRCONFERENTIELLEMENT DE SURFACES PHOTORECEPTRICES DE PETITE SUPERFICIE PAR RAPPORT A L'ETENDUE DE CE DIAPHRAGME. LESDITES SURFACES TRANSMETTENT LA LUMIERE RECUE A UN DISPOSITIF DE PHOTOCONVERSION 23 RACCORDE A UN CIRCUIT ELECTRONIQUE D'INTERPRETATION. APPLICATION AU CONTROLE OPTIQUE DE MATERIAUX EN BANDES.
Patent FR-2604606-A1 (FR)
Title: Novel dietetic milk food product for infants
Inventor: LEMPDES JEAN-BLAISE ROCHETTE D
IPC: A23C11/04
Filed: 1986-10-07
Abstract: Dietetic milk food product for infants, comprising a protein fraction, a carbohydrate fraction, a lipid fraction and mineral salts. This milk food product has a medium-chain triglyceride MCT content of between 2 and 14 % by weight approximately, the MCTs present in the said food product being partly naturally contained in the lipid fraction and partly contributed by a supplementary addition of MCT. Application to the feeding of normal unweaned infants in order to offer them a food product whose digestibility is comparable to that of human milk.
Patent FR-2609749-A1 (FR)
Title: Doorstop with friction pads
Inventor: PARIZEL FRANCIS
IPC: E05C17/20
Filed: 1987-01-19
Abstract: Doorstop composed of a tiebar 1 formed from two elements made of folded and stamped sheet metal 1a and 1b secured back to back including a plane part 4, two bosses 5 and 6 and two hollows 7 and 8 and of a casing 2 including means for braking the tiebar 1 made up of two pads of composite material 10 on which two wads of rubber 11 exert a pressure. This device makes it possible to provide firm and temporary holding of the door in two positions and to limit the maximum opening of the door. Application particularly to doors of motor vehicles or the like.
Patent FR-2596805-A1 (FR)
Title: Dispositif de reglage du debut de l'injection dans une pompe d'injection de carburant avec avance du debut d'injection
Inventor: HOFER GERALD
IPC: F02D1/18
Filed: 1987-02-25
Abstract: A) DISPOSITIF DE REGLAGE DU DEBUT DE L'INJECTION DANS UNE POMPE D'INJECTION DE CARBURANT AVEC AVANCE DU DEBUT D'INJECTION. B) DISPOSITIF CARACTERISE EN CE QU'UNE SOUPAPE DE SURPRESSION 20 POUR DETENDRE LA PRESSION, EST ASSOCIEE A L'UNE 12 DES CHAMBRES DE PRESSION DE COMMANDE DANS LAQUELLE EST ETABLIE UNE PRESSION POUR DEPLACER LE PISTON DE REGLAGE 7 EN VUE D'UN DECALAGE EN RETARD, CONTRE L'ACTION DE LA BUTEE ELASTIQUE 27, TANDIS QU'A L'AUTRE CHAMBRE DE PRESSION DE COMMANDE 13 EST ASSOCIEE UNE SOUPAPE DE COMMANDE 34 COMMANDEE EN FONCTION DE LA TEMPERATURE POUR ETABLIR OU POUR DETENDRE LA PRESSION. C) L'INVENTION SE RAPPORTE AUX DISPOSITIFS DE REGLAGE DU DEBUT DE L'INJECTION DANS UNE POMPE D'INJECTION DE CARBURANT.
Patent FR-2612047-A1 (FR)
Title: Device for positioning lines far from the bank without casting them
IPC: A01K91/02
Filed: 1987-03-09
Abstract: The invention relates to a device allowing lines, accessories and craft to be positioned, with the aid of a positioning appliance 1, far from the water's edge 38 without casting (throwing). The positioning appliance 1 moves using an autonomous propulsion system connected from the water's edge 38 by a line 28, which unwinds as the appliance advances, acts as a rudder for it, and controls it. It can be used incorporated with the line 23, either as a transportation means, or alone. The positioner 1 preferably consists of elements ABC which are assembled by glueing. The members can be embedded in a block of expanded synthetic material whose closed, lightweight and leaktight cells 6 adapting the non-limiting shape of the positioner 1. Amongst the most advantageous applications of the invention, mention may be made of angling, games, sampling, positioning or interception of craft.
Patent FR-2612682-A1 (FR)
Title: Commutateur electrique comportant une manette de commande coudee
Inventor: GAUTHIER CHRISTIAN
IPC: F16D3/16
Filed: 1987-03-17
Abstract: LA PRESENTE INVENTION CONCERNE UN COMMUTATEUR ELECTRIQUE, EN PARTICULIER POUR VEHICULES AUTOMOBILES COMPORTANT UNE MANETTE DE COMMANDE QUI COMPREND UN ARBRE MENANT 30 SUSCEPTIBLE DE ROTATION AUTOUR D'UN AXE PRINCIPAL 32, UN ARBRE MENE 60 SUSCEPTIBLE DE ROTATION AUTOUR D'UN AXE SECONDAIRE 62 NON PARALLELE A L'AXE PRINCIPAL, UN TOURILLON 80 SOLIDAIRE DE L'UN DES ARBRES 30, 60, QUI POSSEDE UNE ENVELOPPE AU MOINS PARTIELLEMENT CYLINDRIQUE CENTREE SUR UN AXE AUXILIAIRE 82 COPLANAIRE A L'AXE 32, 62 DE L'ARBRE 30, 60 QUI LE PORTE ET TRANSVERSAL A CET AXE, ET UNE FOURCHETTE 34 SOLIDAIRE DE L'AUTRE ARBRE 60, 30 DONT LA LARGEUR D'OUVERTURE 1 EST COMPLEMENTAIRE DU DIAMETRE DU TOURILLON 80, DONT LE PLAN DE SYMETRIE 42 EST COPLANAIRE DE L'AXE 62, 32 DE L'ARBRE QUI LA PORTE ET DONT LES BRANCHES 36, 38, 40 SONT AU MOINS PARTIELLEMENT EXCENTREES PAR RAPPORT A CET AXE.
Patent FR-2613682-A1 (FR)
Title: Device making it possible for vehicles to improve their penetration through the air (correction of Cx)
IPC: B62D35/00
Filed: 1987-04-10
Abstract: The invention consists on a device capable of moving the volume of air in front of the vehicles, of channelling it, and of rejecting it at the rear. It consists of a faring 1 composed of a battery of fans 2 and of a venturi 3 as well as deflecting flaps 4 contributing to seizing this volume of air, passing it through a sheath 5 in order to return it at the rear. The device according to the invention is more particularly intended for utility vehicles and touring coaches for example.
Patent FR-2615078-A1 (FR)
Title: Bag for facilitating transportation of a bottle
IPC: A45F5/00
Filed: 1987-05-14
Abstract: Bag which is slung over the shoulder for transporting a bottle, formed from 3 straps which are from 2 to 3 cm wide. The figure shows the bag equipped with the bottle and the manner of transporting it.
Patent FR-2616183-A1 (FR)
Title: Assembly device with self-locking journals
IPC: F16B12/24
Filed: 1987-06-02
Abstract: The present invention applies mainly to the field of furnishing and relates more particularly to the assemblies of panels, uprights, crossmembers or longitudinal members for manufacturing various items of furniture. Journals of functional shape are combined with grooves, also of original shape, which makes it possible to obtain clamping of the components of the assembly by wedging the said journals in the grooves, by virtue of the tapered nature of their machining. In the variant presented, the assembly device has journals 6 coupled together by a threaded shank 24 equipped with a head 25, with a bearing washer 26, and with a stop 27. The device thus made up is mounted in a flat joint assembly of the two panels 13, 14 which are morticed so as to receive the movable journals 6 (mortices not shown), as well as grooves at 28 and 29 to allow the passage of the threaded shank 24. The rotation of the screw head 25 and therefore of the threaded shank 24 allows the assembly to be blocked or unblocked, depending on the direction of rotation of the unit 24, 25.
Patent FR-2599749-A1 (FR)
Title: Abrasive and compositions containing it
Inventor: OZAWA TOSHIYUKI
IPC: C09K3/14
Filed: 1987-06-05
Abstract: The abrasive according to the invention is prepared by calcining, at a temperature of between 70 and 1200 DEG C, anhydrous calcium hydrogenphosphate which has a mean crystal size of 2 x 10 to 3.5 x 10<2> nm. Depending on whether the calcination temperature is lower or higher than 700 DEG C, this abrasive will be employed either in a toothpaste or other oral composition, or in a grinding or polishing composition for metal surfaces, glass surfaces or wafers for printed circuits.
Patent FR-2618686-A1 (FR)
Title: Apparatus for medical use intended for emitting a flow of air loaded with water vapour
Inventor: BRUNET JEAN LOUIS
IPC: A61M16/16
Filed: 1987-07-31
Abstract: The subject of the invention described is an apparatus producing a flow of air loaded with water vapour, or vapour of any other appropriate liquid, which can be used in the medical treatment of inflammations of the nasal mucosa, such as rhinitis. It comprises air supply means, means for heating this air, means for vaporising water or an appropriate liquid and means for mixing this vapour with the heated air, and is characterised by the juxtaposition with the mixing chamber 4 of a settling chamber 7 separated by a grid 6, allowing the best possible homogenisation of the air/vapour mixture and the removal of condensates which can be formed.
Patent FR-2738365-A1 (FR)
Title: Modulo N multiplication of two binary numbers and application to exponentiation for public key encryption
Inventor: QUENEA MARTINE
IPC: G06F7/72
Filed: 1987-10-23
Abstract: The computation procedure produces a number of sub-products using a recursive relationship. The modulo number is subtracted from each sub-product, leaving the sub-product unchanged if the result of the subtraction is negative or modifying the value of the sub-product if the result is positive. The result is added to the product of the first multiplier and a co-efficient from the second multiplier. The result has subtracted from it the number resulting from the previous subtraction and test, and again the result is retained if the subtraction proves negative, or modified if not.
Patent FR-2607303-A1 (FR)
Title: Direct-current display assembly including a constant-current excitation device
Inventor: CHANNING DEAN A
IPC: G09G3/296
Filed: 1987-11-25
Abstract: Direct-current light-emitting panels and plasma displays require a constant-current power supply in order to be able to operate optimally. According to the invention, a current mirror 19 is used which constitutes a constant-current source for a column excitation circuit 7 which produces constant-current signals making it possible to excite column electrodes of a light-emitting panel or of a plasma display 1. The column excitation circuit initially therefore produces 55 a precharge current pulse in addition to a constant-current signal so as rapidly to charge the excited image elements up to a voltage which will allow lighting of the image elements under the required constant current and to a desirable, relatively high excitation frequency of the complete images. These constant-current excitation signals reduce the power dissipation in the display and thus make it possible to increase the lifespan of the latter.
Patent WO-8807999-A1 (WO)
Inventor: GLACET ARNAUD
IPC: C07H13/06
Filed: 1988-04-13
Abstract: Procédé de synthèse spécifique de monoester entre un acide gras et l'O-isopropylidène-1,2alpha-D-glucofurannose comportant l'acylation du di-O-isopropylidène-1,2:5,6alpha-D-glucofurannose et l'élimination sur résine échangeuse d'ions (H+) du groupe protecteur isopropylidène-5,6 pour donner du O-acyl-3 O-isopropylidène-1,2alpha-D-glucofurannose. Celui-ci peut-être transposé quantitativement en O-acyl-6 O-isopropylidène-1,2alpha-D-glucofurannose pur. Ces monoesters où acyl signifie (i), avec R=alkyle ayant un nombre de carbone égal ou supérieur à 7, sont adjuvants de fermentation, des agents de gonflement, des gélifiants, des émulsifiants, des micro-émulsifiants utilisables dans l'alimentation, la pharmacie, l'hygiène, les cosmétiques.