baber/WOPTO huggingface dataset:
Patent FR-2608987-A1 (FR)
Title: Circuit de freinage pour avion
Inventor: GUICHARD JEAN
IPC: B60T17/18
Filed: 1986-12-26
Abstract: LE CIRCUIT DE FREINAGE SELON L'INVENTION COMPREND DES FREINS DE ROUES 11 ALIMENTES EN FLUIDE HYDRAULIQUE PAR DES SERVOVALVES 8, 22 MONTEES DANS UN CIRCUIT NORMAL ET UN CIRCUIT DE SECOURS, LE CIRCUIT NORMAL ET LE CIRCUIT DE SECOURS ETANT SELECTIVEMENT RELIES AUX FREINS DE ROUES PAR DES MOYENS DE COMMUTATION 9 ET PROTEGES CONTRE UNE PERTE EXCESSIVE DE FLUIDE HYDRAULIQUE PAR DES FUSIBLES HYDRAULIQUES 6, 24. IL EST CARACTERISE EN CE QUE LES SERVOVALVES 8 DU CIRCUIT NORMAL SONT ASSOCIEES PAR PAIRES, EN CE QUE LES FUSIBLES HYDRAULIQUES 6 DU CIRCUIT NORMAL SONT DISPOSES EN AMONT DES SERVOVALVES 8 SUR UN TRONCON DE LIGNE 5 COMMUN A CHAQUE PAIRE DE SERVOVALVE, ET EN CE QUE LES MOYENS DE COMMUTATION 9 DU CIRCUIT NORMAL AU CIRCUIT DE SECOURS SONT DISPOSES EN AVAL DES SERVOVALVES 8.
Patent WO-8802867-A1 (WO)
Inventor: FOUCHE YVON
IPC: G01R25/00
Filed: 1987-10-06
Abstract: L'invention a principalement pour objet un dispositif de mesure de phase. L'utilisation des filtres adaptés (140) permet d'augmenter le rapport signal/bruit d'un signal reçu. Toutefois, si on envoie une pluralité d'échantillons du signal comportant chacun une phase différente, le signal présent à la sortie du filtre adapté (140) à un instant quelconque, risque d'être un mélange de phase de deux échantillons successifs. L'utilisation d'un filtre impair (141) permet de déterminer les seuls instants pendant lesquels la mesure de phase correspond à la phase d'un seul échantillon du signal. L'invention s'applique principalement à la démodulation, détection ou au décodage d'émissions de télévision de radio ou des transmissions de donnée en modulation de phase.
Patent FR-2609718-A1 (FR)
Title: Procede de preparation en masse de polymeres et copolymeres a base de chlorure de vinyle
Inventor: CHATELAIN JEAN
IPC: C08F2/00
Filed: 1987-01-20
Abstract: PROCEDE DE PREPARATION EN MASSE DE POLYMERES ET COPOLYMERES A BASE DE CHLORURE DE VINYLE PAR POLYMERISATION D'UNE COMPOSITION MONOMERE A BASE DE CHLORURE DE VINYLE. ON EFFECTUE AU MOINS UNE PARTIE DE LA REACTION DE POLYMERISATION DANS UNE ZONE DE POLYMERISATION DELIMITEE PAR UNE PAROI SENSIBLEMENT SPHERIQUE, EN REALISANT, DANS LADITE ZONE DE POLYMERISATION, UNE CIRCULATION CONTROLEE ET REGLEE DU MILIEU REACTIONNEL AU MOYEN D'UN ENSEMBLE-TURBINE A PALES, ENTRAINE EN ROTATION, LESDITES PALES PASSANT AU VOISINAGE DE LADITE PAROI SUR 10 A 60 DE SA SURFACE, LE MILIEU REACTIONNEL ETANT ENTRAINE PAR LA FORCE CENTRIFUGE SUR AU MOINS UNE PARTIE DE LA PAROI SPHERIQUE DANS UN MOUVEMENT AU MOINS PARTIELLEMENT ASCENDANT ET RETOMBANT, ESSENTIELLEMENT SOUS L'ACTION DE LA PESANTEUR, DANS LA PARTIE CENTRALE DE LA ZONE SPHERIQUE, EN ASSURANT AINSI UN BRASSAGE INTENSE ET SANS ZONE MORTE. LEDIT PROCEDE, TOUT EN PERMETTANT D'OBTENIR DE FACON REPRODUCTIBLE DES POLYMERES ET DES COPOLYMERES A BASE DE CHLORURE DE VINYLE PRESENTANT APRES TAMISAGE DES CARACTERISTIQUES INTERESSANTES DE MASSE VOLUMIQUE APPARENTE ELEVEE, DE DIAMETRE MOYEN DES PARTICULES REGLABLE A LA DEMANDE ET DE FAIBLE TAUX PONDERAL DE FINES PARTICULES, NE NECESSITE L'EMPLOI QUE D'UN SEUL ET MEME AGITATEUR DU DEBUT A LA FIN DE LA REACTION DE POLYMERISATION.
Patent FR-2610144-A1 (FR)
Title: Lamp-lampholder assembly having mutual retention by magnetic attraction which is improved by the shape of the electrical contacts
IPC: H01R33/94
Filed: 1987-01-23
Abstract: Lamp-lampholder assembly having improved magnetic attraction. Lamp-lampholder assembly characterised in that the mutual retention results from the magnetic attraction between a small metal plate 6 firmly attached to the cap 2 and a magnet 29 arranged at the bottom of the lampholder 20 or adaptor 21, the cap and the cavity of the lampholder having complementary cylindrical shapes with flats 3 and 4 which are extended for the lamp by electrical contacts which engage in complementary pinching-effect contact members provided correspondingly at the bottom of the lampholder on either side of the magnet or of its central part. This invention is of interest to manufacturers of electric lamps and lampholders.
Patent FR-2610294-A1 (FR)
Title: Package for bottles and similar objects which is rendered useless after opening
Inventor: GAUDIN GILLES ALBERT
IPC: B65D5/54
Filed: 1987-01-29
Abstract: Package for bottles and similar objects which is rendered useless after opening, of which one of the bases 6 is provided in its central zone with multiple cut-outs 7 terminated by a tongue 8 which on raising it makes it possible to tear the base 6 while the top 9, being superimposed on a flap 10 connected by a folding line to one of the rectangular sides 1a, 1b, 1c, 1d is connected to another of the rectangular sides 1a, 1b, 1c, 1d of the pack by a folding line 14 of low strength such that it tears as soon as this top 9 is pulled.
Patent FR-2610750-A1 (FR)
Title: Luminous sign device
IPC: G09F13/28
Filed: 1987-02-05
Abstract: This device comprises a bar 2 associated with means for fixing to or suspension from a support, and with means 3 for an electricity power supply, on which are fixed several connecting terminals 4 arranged parallel to each other and perpendicular to the bar, each terminal serving, on the one hand, for the removable fixing of and, on the other hand, for the electric power supply to a letter 8, to a group of letters or to a luminous figurative element. Application to the production of luminous panels intended to equip shops.
Patent FR-2614704-A1 (FR)
Title: Camera cinematographique utilisant des magasins de film interchangeables a deplacement des axes des bobines de film debitrice et receptrice
Inventor: BEAUVIALA JEAN-PIERRE
IPC: G03B17/26
Filed: 1987-04-28
Abstract: LA PRESENTE INVENTION CONCERNE UNE CAMERA CINEMATOGRAPHIQUE UTILISANT DES MAGASINS DE FILM INTERCHANGEABLES A DEPLACEMENT DES AXES DES BOBINES DE FILM DEBITRICE ET RECEPTRICE. CETTE CAMERA EST CARACTERISEE EN CE QU'ELLE COMPORTE UN MOTEUR ELECTRIQUE MONTE SUR LE CORPS DE LA CAMERA ET DONT L'ARBRE DE SORTIE EST SOLIDAIRE D'UN PLATEAU MAGNETIQUE MENANT D'UN COUPLEUR MAGNETIQUE QUI COMPREND, DANS LE MAGASIN 1, UN PLATEAU MAGNETIQUE MENE SOLIDAIRE D'UN PIGNON MENANT 23, LE PLATEAU MAGNETIQUE MENE ET LE PIGNON MENANT 23 SONT MONTES A ROTATION, DANS LE MAGASIN 1, AUTOUR D'UN AXE 24 QUI EST CONFONDU AVEC L'AXE DU MOTEUR D'ENTRAINEMENT, LE PIGNON MENANT 23 EST ACCOUPLE A UN PIGNON MENE 26 QUI EST SOLIDAIRE DE L'AXE 7 DE LA BOBINE RECEPTRICE ET COAXIAL AVEC CELUI-CI ET CET AXE 7 ET LE PIGNON MENE 26 SONT MONTES CONJOINTEMENT A ROTATION SUR UNE PLATINE PIVOTANTE 27.
Patent FR-2623551-A1 (FR)
Inventor: PERCHERON JEAN-CLAUDE
IPC: F16J15/18
Filed: 1987-11-25
Abstract: The cable lines (1) forming the stay cable, mounted so as to be able to work and to be dismantled independently of one another, each consist of an assembly of parallel or twisted steel wires, surrounded by a sheath (3) in polyethylene, polyamide or a corrosion-resistant metal, with interposition of a filling material, such as an epoxy-type resinous pitch, or a wax. The ends of the cable lines (1), stripped of their sheaths (3) for their individual anchoring on a perforated block (6) are embedded in a protective grease. The grease chamber (A), formed by a sleeve (7) connected to the anchoring block (6), is closed by a stuffing-box seal (8) traversed by the cable lines (1), which are sheathed again, and comprising an outer plate (82) which, controlled by clamping rods (10) which can be actuated from outside the anchoring block (6), presses an elastomer cushion (83) against an inner plate (81) bearing on spacer rings (11) arranged in the chamber (A).
Patent FR-2624690-A1 (FR)
Title: Ventilation cover with variable air flow rates for ventilating cereals
IPC: B65D88/72
Filed: 1987-12-16
Abstract: The invention relates to a cover made from solid corrugated sheet metal 1 provided with punched orifices 2 whose cross-section may be varied as a function of the air flow rate desired, with an inner metal sheet 3 preventing the grains stored from entering inside the cover. The device according to the invention is particularly intended for ventilating and fumigating cereals and grains and various seeds.
Patent FR-2624027-A1 (FR)
Title: Miniature golf course and method for manufacturing it
IPC: A63B67/02
Filed: 1987-12-08
Abstract: The present invention relates to a miniature golf course and the method for manufacturing it. This novel course responds to the problems of robustness and removability. This is a course whose base structure is a metal framework 6 and comprises a zone 2 of approach to the hole 4, a green 3 of generally circular shape and added obstacles, which consists of: - a monoblock metal frame delimited over its entire periphery by a continuous metal profiled section 7, one flange (wing) of which is vertical, inside which frame are fastened reinforcing elements 8, 13, 14, - a layer 15 of light-weight concrete including fillers 16 of lower density, such as particles of wood or synthetic materials, and constituting the filling material for the housing delimited by the opposite inner faces 12 of the profiled section 7, the height of the layer 15 of light-weight concrete being less than that of the profiled section 7, - a finishing layer (cover) 18 covering the layer 15 of light-weight concrete and which is flush with the profiled section 7, - and a border 9 located on the edge of the playing surface 5 of the course (track) 1.
Patent FR-2625388-A1 (FR)
Title: Error-rectifying method in an analog digital converter (adc) and adc using this method
Inventor: THAO NGUYEN TRUONG
IPC: H03M1/00
Filed: 1987-12-29
Abstract: A compound analog-digital converter ADC includes at least two parallel conversion stages 12, 13. Each stage comprises a thermometer comparator scale, divided into 2<n> quantisation intervals for a conversion on n bits. If an analog signal x1 is near the boundary between two intervals i,i+1, the first conversion stage 12 may make an error, and supply a wrong logic number. According to the invention, at least the second conversion stage 13 is extended by at least two quantisation intervals - 1,2<n> situated at the ends of its thermometer scale: they supply a 0 or 1 carry bit. Addition of the erroneous logic number b1 of the first stage 12 and of the logic number b2 with carry bit of the second stage 13 rectifies the quantisation error. The ADCs according to the invention include an adder 20. Application to the digital processing of analog information.
Patent FR-2626349-A1 (FR)
Title: Method for lighting supplied by light energy
IPC: F21V7/00
Filed: 1988-01-25
Abstract: The invention relates to a device for avoiding technical installations for supplying artificial lighting points, by conveying not electrical energy but light energy. It consists of a light source suitable for requirements, and one or more diffusers, also suitable, situated at locations where lighting points are desired. This invention can be used in all environments which allow light radiation to pass.
Patent FR-2628535-A1 (FR)
Title: Dispositif de controle des parametres de circuits electriques
IPC: G01R31/302
Filed: 1988-03-14
Abstract: L'invention concerne un dispositif de contrôle de paramètres de circuits électriques. Selon l'invention, il comprend un palpeur 1, un amplificateur non inverseur 2, un convertisseur analogique-numérique 5, un registre tampon 6 et un afficheur 7 en série, un amplificateur inverseur 3, un élément retardateur 10 et un conformateur d'impulsions 11 en série, un élément retardateur 8 et un conformateur d'impulsions 9 en série. La première sortie du palpeur 1 est reliée à une barre omnibus 4, la deuxième sortie est reliée à l'amplificateur inverseur 3 et à l'amplificateur non inverseur 2 reliés à l'élément retardateur 8. Le conformateur d'impulsions 11 est relié à l'afficheur 7 et au conformateur d'impulsions 9 dont la sortie est électriquement reliée à la troisième sortie du palpeur 1 et au registre tampon 6. L'invention s'applique notamment à la mesure et au contrôle.
Patent FR-2614364-A1 (FR)
Title: Demarreur coaxial
Inventor: ISOZUMI SHUZO
IPC: F02N11/02
Filed: 1988-03-31
Abstract: L'INVENTION CONCERNE UN DEMARREUR COAXIAL. CE DEMARREUR COMPORTE UN MOTEUR ELECTRIQUE MUNI D'UN BLOC OU BATI 26, UN INDUIT ET UN ARBRE INDUIT EVIDE 23, UN ARBRE DE SORTIE 21 AGENCE DE FACON COAXIALE AVEC L'ARBRE INDUIT 23, UN MECANISME DE REDUCTION A PIGNONS PLANETAIRES DISPOSE ENTRE L'ARBRE INDUIT 23 ET L'ARBRE DE SORTIE 21, UN CONTACTEUR ELECTROMAGNETIQUE 28 MUNI D'UN PISTON LIE MECANIQUEMENT A UNE TIGE 29 POUR COUPLER SELECTIVEMENT L'ARBRE DE SORTIE 21 AU MECANISME DE REDUCTION A PIGNONS PLANETAIRES, UN SUPPORT AVANT 15 COMPORTANT UNE COURONNE DENTEE INTERIEUREMENT 25 DU MECANISME DE REDUCTION A PIGNONS PLANETAIRES ET UN PALIER 16 RECEVANT UNE CHARGE RADIALE ET DES MOYENS DE VISSAGE 32, 18 POUR MAINTENIR ENSEMBLE LE SUPPORT AVANT 15, LE CONTACTEUR ELECTROMAGNETIQUE 28 ET LE BATI OU BLOC 26 DU MOTEUR DU DEMARREUR SUR LE SUPPORT 17 DU MOTEUR. CE DEMARREUR COAXIAL S'APPLIQUE, PAR EXEMPLE, A UN MOTEUR A COMBUSTION INTERNE.
Patent FR-2630906-A1 (FR)
Title: Device for measuring and checking the parallelism and slope of dental surfaces during the preparation of teeth in the mouth
IPC: A61C1/08
Filed: 1988-05-09
Abstract: The invention relates to a device making it possible to overcome the drawbacks due to the lack of parallelism between the dental surfaces, especially in the field of fixed prostheses. It comprises the addition of two devices onto the contra-angle used in the field of dentistry: - a continuous 4 graduated 5 tube which is transparent and whose continuation forms a circle, fulfilling the function of defining the position of the contra-angle when it rotates about its horizontal axis; - a graduated 5 level 7 on the horizontal part of the contra-angle used, such that it is parallel and its dimensions directly proportional thereto. This level will give the degree of the slope of this part in all vertical planes. These two devices according to the invention are in particular intended for measuring and checking parallelism in the field of dentistry and especially in the field of fixed prostheses.
Patent FR-2631994-A1 (FR)
Title: Improvement to the conditions of use of under-shovel vibrators
IPC: E02F3/40
Filed: 1988-05-30
Abstract: Vibrator to be mounted on a shovel, characterised in that it is provided with instantaneous means for gripping and for intermittently blocking the elasticity, for fitting interchangeable tooling.
Patent FR-2632449-A1 (FR)
Title: Method for producing electric fuses with agglomerated sand
Inventor: MARICHY GERARD-ANDRE
IPC: H01H85/18
Filed: 1988-06-07
Abstract: Method for producing electric fuses of the agglomerated sand type, characterized in that it consists in producing firstly a sand coated with a fine layer of binder in the dry state, then introducing this sand into the insulating body enclosing at least one conducting fuse element, and in injecting into the said body a quantity of vapour capable, after condensation on the coated-sand grains, of dissolving the binder which is thus carried to the points of contact of the said grains, thereby ensuring the agglomeration of the latter after drying.
Patent FR-2635640-A1 (FR)
Inventor: TORRES GHISLAINE
IPC: A01N25/10
Filed: 1988-08-24
Abstract: Solid compositions having a biological action in agriculture. They comprise a silicone elastomer matrix in which there is distributed an active substance having a biological action in agriculture in water-soluble form. Application in agriculture.
Patent FR-2619227-A1 (FR)
Title: Polymeres sensibles a la lumiere et a la chaleur, leur procede de preparation et procede d'enregistrement d'informations les mettant en oeuvre.
Inventor: IHATA JYUJI
IPC: B41M5/36
Filed: 1988-09-13
Abstract: Polymère photosensible. Il a des polyènes conjugués à des groupes acide sulfonique et un rapport d'absorption d'une bande forte dans la région de 1 200 cm**-**1 à 1 300 cm**-**1, qui peut être attribuée à des groupes acide sulfonique adjacents à des polyènes conjugués, sur des longueurs d'au moins 3 séquences, à une bande forte au voisinage de 1 050 cm**-**1, qui peut être attribuée à des groupes acide sulfonique dans le spectre infrarouge, d'au moins 0,6. Reprographie.
Patent FR-2637230-A1 (FR)
Inventor: DURIF PIERRE
IPC: B60C15/024
Filed: 1988-10-05
Abstract: The bead 2 of this inverted-bead tyre 1 comprises recesses 230 so as to reduce the effective contact surface 210 of the contact face 21 on the seat 31 of the rim 3.
Patent FR-2622855-A1 (FR)
Title: Regulateur de la pression de freinage pour la regulation antiblocage et la regulation du glissement de tracteur
Inventor: REINARTZ HANS-DIETER
IPC: B60T8/44
Filed: 1988-11-02
Abstract: L'invention concerne un régulateur de la pression de freinage pour la régulation antiblocage mode RAB et la régulation du glissement de traction mode RGT d'un véhicule automobile. Le régulateur comprend un maître-cylindre 13, un amplificateur hydraulique d'effort de freinage 5, un régulateur électronique qui, d'après des signaux de capteurs, émet à sa sortie des signaux variables suivant un algorithme de régulation pour commuter des valves électromagnétiques 7 à 12 associées aux cylindres de roues, une source de liquide de pression 19 et un réservoir 47. Une unité de valve garantit l'adaptation du niveau de pression de la source de liquide de pression 19 au mode RGT et au mode RAB. De plus, lorsque le frein est actionné, l'unité de valve met hors circuit le mode RGT. L'unité de valve comprend au moins un dispositif à poussoir et bille 58, 68 servant d'élément de fermeture et/ou de régulation. Les avantages de ce régulateur de la pression de freinage résident dans le fait que la régulation du niveau de pression et la mise hors circuit du mode RGT sont effectués automatiquement. De plus, l'entrée et les valves de blocage autrement nécessaires au mode RGT sont supprimées. Les avantages des valves à bille/siège sont utilisés.
Patent FR-2623863-A1 (FR)
Title: Embrayage de vehicule du type " tire "
Inventor: LIMBACHER BERNHARD
IPC: F16D23/14
Filed: 1988-11-24
Abstract: Un embrayage de véhicule automobile du type " tiré ", à utiliser entre un moteur à combustion interne et une boîte de vitesses, comprend une bague de débrayage dont le mouvement axial engendre le désaccouplement ou encore l'ouverture de l'embrayage. Une douille de débrayage peut être insérée dans la bague de débrayage, et peut être reliée à la bague de débrayage par une agrafe métallique 1. L'agrafe métallique 1 possède un anneau métallique de base circulaire 3 et deux parties terminales 4, 5. L'anneau 3 s'étend sur près de 360degre(s). Un espace libre 53 est défini entre les extrémités 51, 52 de l'anneau 3. Les parties terminales 4, 5 rejoignent les extrémités 51, 52 de l'anneau 3. Ces parties terminales 4, 5 peuvent être engagées à la main ou par un outil afin d'élargir l'anneau 3. Les parties terminales 4, 5 s'entrecroisent. Leurs faces de préhension 6a, 7a sont dirigées en éloignement mutuel dans des directions sensiblement périphériques opposées, de sorte que le rapprochement mutuel des faces de préhension 6a, 7a engendre l'élargissement de l'anneau 3. En élargissant l'anneau 3, la liaison entre la bague de débrayage et la douille de débrayage est supprimée.
Patent FR-2641345-A1 (FR)
Title: Support with an adjustable calliper
IPC: E06B11/04
Filed: 1988-12-29
Abstract: Device for laying runways of structures with lateral displacement. It consists of a flat U-shaped element 1 and of a fixing rod 2 allowing the vertical and lateral adjustment of various types of support.
Patent FR-2632682-A1 (FR)
Title: Lattice for lining a face
Inventor: QUANTE HEINRICH
IPC: E21D11/15
Filed: 1989-01-25
Abstract: The invention relates to a lining lattice for consolidating the roof in underground mine faces with the aid of hydraulic timbering, in particular shield-type supports, as well as in galleries (tunnels) with the aid of gallery arches consisting of a grid made from longitudinal and transverse bars which cross one another which are lined on the end sides with linking pieces for coupling to the linking pieces of adjacent lattices, the longitudinal bars having, at one end, hanging hooks and, at the opposite end, between the last transverse bars, returns projecting away from the plane of the lattice. The lining lattice is characterised in that the connection pieces 12 are provided on both sides of the transverse bars 5 and may slide in one another alternately thus forming a link which is strong in tension, similar to a knot, and that strips of balancing sheet metal 39 are provided, which are provided with mouldings 40, 41 provided at a distance from the bars, having a height which corresponds substantially to twice the diameter of the bar, and which are shaped so as to bridge the intermediate gap between two adjacent lattices 1, 58 and to extend substantially as far as the middle of the lattice. Application to the lining of faces and galleries (tunnels) of mines.
Patent FR-2642784-A1 (FR)
Title: Modular car park for vehicles
IPC: E04H6/10
Filed: 1989-02-08
Abstract: Arrangement permitting the parking of vehicles. The invention concerns an arrangement by means of which it is possible to increase the parking capacity of a traditional car park using modular elements. It consists of a fabricated framework 1 of feet 2. The framework and the feet are assembled by means of screw-bolt connections with lateral 5 and longitudinal 6 angle brackets. The deck consists of metal sheeting 7. The whole assembly is supported by hinged base- plates, one for each foot, which consist of a base 4 and a connection piece 3. Levelling is carried out by adjusting the length of the foot 2. The assembly of several modules constitutes an overground car park.
Patent FR-2644133-A1 (FR)
Title: Hybrid free sailboard and accessories
Inventor: GUYARD PIERRE YVES
IPC: B63B35/79
Filed: 1989-03-13
Abstract: The sailboard consists of a single wide hull (board) 15 extended at the rear by stabilising fins 16, 17 between which have been provided means for receiving a locker module 40, the underside of the said hull (board) is of concave curved shape symmetric about an axis XX' and limited laterally to the axes X1, X'1-X2, X'2 of symmetry of the stabilising fins 16, 17, the outer shape of the underside of which is symmetrical with its internal shape; the said hull being equipped with a rail 9 for receiving a central centre board and with rails 10, 11 for receiving rear fins, as well as a mast foot rail and free rigging.
Patent FR-2648574-A1 (FR)
Title: Optical sighting device mounted on a vehicle on the outside of the latter
Inventor: ROQUEFEUIL CLAUDE PAUL
IPC: G02B23/14
Filed: 1989-06-20
Abstract: The invention relates to an optical sighting device of the type including an optical system 12 mounted so as to move in rotation in relation to the structure 14 of the vehicle, for example about a bearing axis Z-Z and an elevation axis Y-Y. In order to reduce or eliminate disturbing aerodynamic effects being applied to the movable system 12, the invention is designed to provide the sight 10 with an aerodynamic protective cowling (shroud) 34 having a profile of revolution about the bearing axis Z-Z. The protective cowling 34 may be fixed to the base 24 or be rotationally slaved to the movements of the latter. The invention applies especially to the field of firing sights for combat helicopters.
Patent FR-2648792-A1 (FR)
Title: Polystyrene food tray intended for the vacuum packaging of a fresh product by draping a flexible plastic film comprising an opening tongue and its manufacturing method.
Inventor: DERAIN JACKI
IPC: B65B61/18
Filed: 1989-06-21
Abstract: The invention relates to a polystyrene food tray. Food tray 1, of the type made from polystyrene 2. The internal walls 3 of the polystyrene tray 2 are covered with a film 4 which is impervious to oxygen. The closing and wrapping of the said tray 1 and the fresh products are carried out under vacuum and then closed and wrapped using the technique of draping a flexible plastic film 6 which is impervious to oxygen and shrinkable. The tray 1 comprises, at one of its corners, a grasping tongue which provides the peelable nature of the said tray, that is to say its opening by pulling on the upper film 6. Food tray for fresh product.