Abrégé

The main purpose of the invention is a metal sealing system (6) for a triple eccentricity butterfly valve (30) comprising: a dynamic metal seal (21), comprising a metal core surrounded by an external coating; a metal case (15) with an external surface that has an inclined conical shape, comprising a first housing inside which the dynamic metal seal (21) is mounted; a metal cover (29) fixed to the metal case (15) to allow it to close by flush fitting of the upper or lower faces of the metal cover (29) and the metal case (15), the metal case comprising a second housing into which the metal cover fits, the dynamic metal seal (21) being located between the metal cover (29) and the surface of the metal case (15) defining the first housing.

Classes IPC  ?

• F16K 1/226 - Forme ou disposition du joint d'étanchéité

Abrégé

A metal sealing system for a triple eccentricity butterfly valve includes a dynamic metal seal, having a metal core surrounded by an external coating; a metal case with an external surface that has an inclined conical shape, including a first housing inside which the dynamic metal seal is mounted; a metal cover fixed to the metal case to allow it to close by flush fitting of the upper or lower faces of the metal cover and the metal case, the metal case having a second housing into which the metal cover fits, the dynamic metal seal being located between the metal cover and the surface of the metal case defining the first housing.

Classes IPC  ?

• F16K 1/226 - Forme ou disposition du joint d'étanchéité
• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• F16K 1/228 - Corps du joint d'étanchéité mobile

Abrégé

A static metal seal comprising an outer sealing layer, wherein the outer sealing layer comprises a textured surface that is configured to come into contact with the surfaces that are to be sealed, the textured surface comprising a network of depressions spaced apart from one another on the textured surface, wherein the depressions are blind, do not pass all the way through the outer sealing layer, and do not communicate with one another.

Classes IPC  ?

• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique

Produits et services

Joints (parts of engines). Clamps. Seals for pipes, sealants for joints, external sealing layers; rings, beads, seals; coatings applied to joints.

Produits et services

(1) Joints étant des parties de moteurs, joints d'étanchéité pour moteurs, joints toriques en tant que parties de machines. (2) Serre-joints. (3) Joints pour conduites, mastics pour joints de pavage, mastics en caoutchouc pour les joints, mastics de recouvrement des joints de dilatation, anneaux en caoutchouc à utiliser comme joints pour raccords de tuyaux, anneaux métalliques à utiliser comme joints pour raccords de tuyaux; couches externes d'étanchéité nommément composés d'étanchéité pour joints, mastics d'étanchéité adhésifs imperméables, membranes d'étanchéité isolantes, produits d'étanchéité et de calfeutrage adhésifs; bagues d'étanchéité pour tuyaux de plomberie, bagues composites, bagues métalliques à utiliser comme joints pour raccords de tuyaux; bourrelets d'étanchéité, bourrelets d'étanchéité pour automobiles, bourrelets de calfeutrage; garnitures d'étanchéité pour conteneurs, garnitures d'étanchéité pour étuis de caméras, anneaux d'étanchéité, membranes d'étanchéité isolantes; revêtements en vinyle pour les joints pour l'extérieur des véhicules, revêtement en film vinyluréthane pour les joints pour l'extérieur des automobiles, revêtements antidérapants adhésifs en caoutchouc pour les joints pour baignoires.

Produits et services

Joints being parts of engines Hand tools, namely, clamps Non-metal seals for plumbing pipes; external sealing layers, namely, thread seal tape; o- rings, namely, pipe gaskets; non-metal seals for use in industrial piping; insulated coatings applied to joints

Abrégé

A metallic sealing assembly between a rotating shaft and a fixed frame comprises: a flexible metallic seal having two tori, inner and outer, that are concentric and of different average diameters, comprising a metal envelope which encases and holds the inner and outer tori; a shaft rotating about an axis of rotation, comprising an annular shoulder against which the seal comes to press; a counter-face, comprising a contact face against which the seal comes to press; a wedge block positioned around the rotating shaft such that the seal is held between the wedge block and the contact face, the wedge block mounted to slide on the rotating shaft; a metal part which forms a cap through which the rotating shaft passes and which is secured to the frame and/or to the counter-face, the rotating shaft being free to rotate with respect to the cap and axially secured to the cap.

Classes IPC  ?

• F16J 15/32 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques
• F16J 15/3212 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques avec au moins une lèvre pourvue d’éléments de tension, p. ex. de bagues élastiques avec des ressorts métalliques
• F16J 15/3248 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques pourvus d’armatures ou de supports
• F16J 15/3276 - Montage des bagues d’étanchéité avec étanchéité statique supplémentaire entre le joint ou son armature ou son support et la surface sur laquelle il est monté

Abrégé

The invention relates principally to a static metal seal (1) comprising an outer sealing layer, wherein the outer sealing layer comprises a textured surface (3) that is configured to come into contact with the surfaces that are to be sealed, said textured surface (3) comprising a network of depressions (4) spaced apart from one another on the textured surface (3), wherein the depressions (4) are blind, do not pass all the way through the outer sealing layer, and do not communicate with one another.

Classes IPC  ?

• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• F16L 23/20 - Raccords à brides caractérisés par les moyens d'étanchéité les moyens d'étanchéité étant des segments exclusivement en métal

Abrégé

The invention relates principally to a static metal seal (1) comprising an outer sealing layer, wherein the outer sealing layer comprises a textured surface (3) that is configured to come into contact with the surfaces that are to be sealed, said textured surface (3) comprising a network of depressions (4) spaced apart from one another on the textured surface (3), wherein the depressions (4) are blind, do not pass all the way through the outer sealing layer, and do not communicate with one another.

Classes IPC  ?

• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• F16L 23/20 - Raccords à brides caractérisés par les moyens d'étanchéité les moyens d'étanchéité étant des segments exclusivement en métal

Produits et services

Common metals and their alloys; building materials of metal; transportable buildings of metal; non-electric cables and wires of metal; ironmongery and small items of metal hardware; pipes of metal; ores; buildings of metal; washers of metal; valves of metal (other than machine parts); junctions of metal for pipes; pipe valves of metal; junctions of metal for pipes; collars of metal for fastening pipes. Taps (parts of machines, engines or motors). Apparatus and instruments for lighting, heating, steam generating, cooking, refrigerating, freezing, deep-freezing, drying, ventilating, water supply and sanitary installations; air-conditioning apparatus or installations; electric pressure cookers; freezers; kilns, cookers; microwave cooking apparatus; furnaces (other than for experimental purposes); furnace grates; grills (cooking apparatus); hot plates; rotisseries; electric laundry driers; roasting jacks; electric cooking utensils, electric fans for personal use; air-purifying apparatus and machines; cooker hoods; taps for pipes and pipelines; faucets; thermostatic valves (parts of heating installations); valves of metal. Rubber, gutta-percha; gum, asbestos, mica; packing, stopping and insulating materials; insulation materials; flexible pipes not of metal; rubber stoppers; packing (cushioning, stuffing) materials of rubber or plastics; plastic sheeting for agricultural use; foils of metal for insulating; insulating gloves; insulating tapes; insulating fabrics or varnishes; artificial or synthetic resins (semi-finished goods); glass wool or fibers for insulation; sealant compounds for joints; joints for sealing (sealing rings); carbon fibers, other than for textile use; carbon seals; cylinder gaskets; pipe seals; fitting for expansion joints; metal seals; joints, brushes of metal; metal seat seals for butterfly valves; lamellar joints; expansion joint fillers; clack valves of rubber; washers, seals for water faucets; lamellar joints.

Abrégé

The principal subject of the invention is a metallic sealing assembly (30) between a rotating shaft (16) and a fixed frame (3), characterized in that it comprises: a flexible metallic seal (1) having two tori, inner and outer, that are concentric and of different average diameters, comprising a metal envelope which encases and holds the inner and outer tori; a shaft (16) rotating about an axis of rotation (X), comprising an annular shoulder (7) against which the seal (1) comes to press; a counter-face (14), comprising a contact face (14a) against which the seal (1) comes to press; a wedge block (17) that is positioned around the rotating shaft such that the seal (1) is held between the wedge block (17) and the contact face (14a), the wedge block (17) being mounted so as to be able to slide on the rotating shaft; a metal part which forms a cap (15) through which the rotating shaft (16) passes and which is secured to the frame (3) and/or to the counter-face (14), the rotating shaft (16) being free to rotate with respect to the cap (15) and axially secured to the cap (15).

Classes IPC  ?

• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• F16K 1/226 - Forme ou disposition du joint d'étanchéité
• F16K 41/16 - Joints d'étanchéité pour tiges avec une saillie conique portée par la tige qui repose sur une bague d'étanchéité

Produits et services

Common metals and their alloys; building materials of metal; transportable buildings of metal; materials of metal for railway tracks; non-electric cables, wires of metal; ironmongery and small items of metal hardware; pipes of metal; ores; buildings of metal; scaffolding of metal; boxes of common metal; metal packaging containers; monuments of metal; works of art of common metal; statues or figurines (statuettes) of common metal; registration plates of metal. Machine tools; motors and engines (other than for land vehicles); machine couplings and transmission components (other than for land vehicles); agricultural implements other than hand-operated; automatic distribution machines; agricultural machines; suction machines for industrial use; woodworking machines; automatic handling machines (manipulators); packaging machines; packing machines; pumps (machines); electric hand drills; clippers (machines); bulldozers; grinding machines; centrifugal machines; sewing machines; knitting machines; ironing machines; laundry washing machines; electric kitchen machines; sorting machines for industry; saws (machines); robots (machines); printing machines; drilling machines; elevators (lifts); electric knives; fuel feeders; alternators; suction machines for industrial use; air suction machines; lifting apparatus; grease rings; grease boxes [parts of machines]; sparking plugs for internal combustion engines; control cables for machines, engines or motors; cowlings [parts of machines]; carburetors; crankcases for machines, motors and engines; hydraulic controls for machines, motors and engines; pneumatic controls for machines, motors and engines; compressors [machines]; air condensers; fuel conversion apparatus for internal combustion engines; belts for machines; belts for motors and engines; fan belts for motors and engines; cylinder heads for engines; cylinders for machines; cylinders for motors and engines; starters for motors and engines; dynamos; fuel economizers for motors and engines; filtering machines; filters for cleaning cooling air, for motors and engines; filters [parts of machines, motors or engines]; air filters for vehicle engines; oil filters; fuel filters; hoists; hydraulic motors; tools [machine parts]; electric devices for opening doors and windows; pistons [parts of machines or engines]; pistons for engines; pistons for cylinders; shock absorber plungers [parts of machines]; lubricating pumps; pumps [machines]; exhausts for motors and engines; radiators [cooling] for motors and engines; regulators [parts of machines]; speed governors for machines, engines and motors; pressure regulators [parts of machines]; taps [parts of machines, engines or motors]; machinery gears; silencers for motors and engines; fans for motors and engines; Machine fly-wheels; jacks [machines]; joints (parts of engines); universal joints [Cardan joints]; gaskets. Vehicles; apparatus for locomotion by land; apparatus for locomotion by air; apparatus for locomotion by sea; suspension shock absorbers for vehicles; vehicle bodies; anti-skid chains; vehicle chassis; vehicle bumpers; sun-blinds adapted for motorized land vehicles; safety belts for vehicle seats; electric vehicles; caravans; tractors; snowmobiles; bicycles; scooters (vehicles); mopeds; cycles; cycle frames; cycle kickstands; brakes for vehicles; cycle handlebars; vehicle rims; vehicle pedals; tires of vehicles, of cycles; vehicle wheels; steering wheels for vehicles; cycle saddles; strollers; handling carts; trailer hitches for vehicles; vehicle trailers; tipping bodies for trucks; couplings for land vehicles; anti-theft alarms for vehicles; cigar lighters for automobiles; shock absorbers for vehicles; anti-theft devices for vehicles; transmission shafts for land vehicles; reversing alarms for vehicles; gear boxes for land vehicles; hoods for vehicles; automobile hoods; hoods for vehicle engines; automobile chains; driving chains for land vehicles; transmission chains for land vehicles; vehicle chassis; treads for vehicles [tractor type]; hydraulic circuits for vehicles; clutches for land vehicles; gearing for land vehicles; hub caps; rims for vehicle wheels; motors and engines for land vehicles; windshields; brake pads for automobiles; brake disks; brake shoes; brake drums; brake calipers; tires; shock absorbing springs for vehicles; vehicle suspension springs; rearview mirrors; vehicle wheels; brake shoes for vehicles; turbines for land vehicles; air bags for vehicles; vehicle tank caps; ashtrays for vehicles; vehicle casings; windshield wipers for vehicles; sun visors for vehicles, vehicle seats; power steering for land vehicles; engine components for land vehicles, namely engine radiators, engine clutch discs, engine clutch thrust bearings, engine clutch mechanisms, complete engine clutch kits, engine oil pumps, engine water pumps, engine timing kits, engine timing belts, engine idlers and reels, alternators, starters, engine ignition coils, vehicle engine suspension and steering parts, specifically ball joints, connecting rods, suspension arms, anti-cut engine stops, engine mounts, engine joints, bearings; vehicle bodywork components such as fenders, bumpers, doors, trunks, roofs, hoods, trays, side panels; universal joints for vehicles for locomotion by land, sea and air. Rubber, gutta-percha; gum, asbestos, mica; packing, stopping and insulating materials; insulation materials; flexible pipes not of metal; rubber stoppers; packing (cushioning, stuffing) materials of rubber or plastics; plastic sheeting for agricultural use; foils of metal for insulating; insulating gloves; insulating tapes; insulating fabrics or varnishes; artificial or synthetic resins (semi-finished goods); bags or small bags (envelopes, pouches) of rubber for packaging; glass wool or fibers for insulation; insulating coatings; substances for insulating buildings against moisture; insulating materials, insulating paints and oils; insulators; insulating varnish; insulating fabrics and tapes, glass wool for insulation; mastic for joints; joints for sealing (sealing rings); carbon fibers, other than for textile use; carbon seals; cylinder gaskets; pipe seals; fitting for expansion joints; metal seals; joints, brushes of metal.

Produits et services

Universal joints for engines and machines Gaskets, joints for sealing rings; carbon fibers other than for textile use; carbon seals; carbon brush seals; cylinder gaskets; pipe seals; fittings for expansion joints; non-metal seals for pipe connections

Produits et services

Taps as machine tools, valves (parts of machines or engines); stuffing boxes (parts of machines), lubrication boxes (parts of machines and machines), gearboxes other than for land vehicles, in particular for food, pharmaceutical, medical, chemical, petrochemical, process engineering and transport sector; exchangers for devices and apparatus for conduction and treatment of gases and liquids, in particular valves and pistons for the compression technique. Sealants and gaskets, in particular metal gaskets, flat gaskets, slip-ring seals, corrugated gaskets, braided gaskets for pumps, expansion joints, inflatable gaskets, membranes as well as sealing lips; sealing materials. Repair and maintenance of devices and apparatus for caulking pipes and housings, in particular in the field of compression technology. Engineering office services, in particular in the field of gaskets; planning of sealing installations.

Produits et services

Joints of metal for pipes. Joints (parts of engines); mechanical seals; gaskets for internal combustion engines. Gaskets.

Produits et services

Taps being machine tools, valves being parts of machines or engines; stuffing boxes being parts of machines; lubrication boxes being parts of machines and machines; gearboxes other than for land vehicles, in particular for food, pharmaceutical, medical, chemical, petrochemical, process engineering and transport sector; heat exchangers being parts of compressors for conduction and treatment of gases and liquids; machines for conduction and treatment of gases and liquids Sealants and gaskets, namely, non-metal flat gaskets for use in compressors, non-metal braided gaskets for pumps and expansion joints, non-metal inflatable gaskets for use in pumps, sealing materials Repair and maintenance of devices and apparatus in the nature of caulk guns in the field of natural gas compressors Engineering services in the field of gaskets; engineering services, namely, planning and layout of pump sealing installations

Abrégé

An annular assembly for compressing a seat of a ball-valve, including: a valve body or insert, including an annular internal counter-bore that defines an inner counter-bore diameter; a sleeve inserted into the annular internal counter-bore, defining at least one outer diameter of the sleeve; the body or the insert defining with the sleeve an annular housing in which the assembly includes, in succession: a downstream stack of head rings, an annular head shim, a stack of mechanisms of compression, an annular base shim, and an upstream stack of base rings.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 5/20 - Dispositions particulières pour tenir écartées les faces d'obturation ou pour les presser l'une contre l'autre dans le cas des boisseaux à surface sphérique
• F16K 27/06 - Structures des logementsMatériaux utilisés à cet effet des robinets ou des vannes

Abrégé

The main subject matter of the invention is an annular assembly (10) for compressing the seat (6) of a ball valve (1), characterised in that it comprises a valve body (5) or an insert (7), provided with an inner annular counterbore (5a) defining an inner counterbore diameter (Di), a sleeve (8) inserted into said inner annular counterbore (5a), defining at least one outer diameter (De) of the sleeve (8), the body (5) or the insert (7) defining, with the sleeve (8), an annular housing (11) in which the assembly (10) comprises successively: a downstream stack (12) of head rings, an annular head shim (13), a stack of compression means (14), an annular bottom shim (16) and an upstream stack (17) of bottom rings.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 5/20 - Dispositions particulières pour tenir écartées les faces d'obturation ou pour les presser l'une contre l'autre dans le cas des boisseaux à surface sphérique

Abrégé

The main subject matter of the invention is an annular assembly (10) for compressing the seat (6) of a ball valve (1), characterised in that it comprises a valve body (5) or an insert (7), provided with an inner annular counterbore (5a) defining an inner counterbore diameter (Di), a sleeve (8) inserted into said inner annular counterbore (5a), defining at least one outer diameter (De) of the sleeve (8), the body (5) or the insert (7) defining, with the sleeve (8), an annular housing (11) in which the assembly (10) comprises successively: a downstream stack (12) of head rings, an annular head shim (13), a stack of compression means (14), an annular bottom shim (16) and an upstream stack (17) of bottom rings.

Classes IPC  ?

• F16K 5/06 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rotatif dont les boisseaux sont à surface sphériqueLeurs garnitures d'étanchéité
• F16K 5/20 - Dispositions particulières pour tenir écartées les faces d'obturation ou pour les presser l'une contre l'autre dans le cas des boisseaux à surface sphérique

Abrégé

b) and a composite structure comprising inside the casing an advantageously flexible and resilient core (24) and a winding (20) of brush bristles. This structure directly extends facing internal faces (9, 10) facing each other in the casing, which compresses the same and has an arcuate shape having a slightly higher radius of curvature. The composite structure is held at an accurate position, firmly but free of constraint.

Classes IPC  ?

• F16J 15/44 - Garnitures discontinues
• F16J 15/32 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques

Abrégé

The invention relates to a method for shaping a plate made from a sintered and restructured polytetrafluoroethylene and applications thereof. This method comprises: - heating the plate to a temperature θ1 at least equal to the melting temperature of a sintered polytetrafluoroethylene; and - shaping the plate thus heated by compression in a compression mould. Applications: manufacture in particular of diaphragms for diaphragm control values and pumps.

Classes IPC  ?

• B29C 43/00 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet
• B29C 43/02 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés
• B29C 43/52 - Chauffage ou refroidissement
• B29K 27/18 - PTFE, c.-à-d. polytétrafluoro-éthylène
• B29L 31/00 - Autres objets particuliers
• F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes

Abrégé

The seal comprises a housing made up of two portions (1, 2) clamped together as a close and fluid tight fit at interfaces (15, 6b) and a composite structure comprising, inside the housing, a core (24) that is advantageously soft and elastic and a winding (20) of brush bristles. This structure extends directly facing the opposing internal faces (9, 10) of the housing, which compresses them and has an arched shape of slightly larger radius of curvature. The composite structure is kept in a precise position firmly but without stress.

Classes IPC  ?

• F02C 7/28 - Agencement des dispositifs d'étanchéité
• F16J 15/22 - Matériaux pour ces garnitures en forme de fibres, de câbles, de fils, de rubans ou d'éléments similaires

Abrégé

The seal comprises a housing made up of two portions (1, 2) clamped together as a close and fluid tight fit at interfaces (15, 6b) and a composite structure comprising, inside the housing, a core (24) that is advantageously soft and elastic and a winding (20) of brush bristles. This structure extends directly facing the opposing internal faces (9, 10) of the housing, which compresses them and has an arched shape of slightly larger radius of curvature. The composite structure is kept in a precise position firmly but without stress.

Classes IPC  ?

• F16J 15/32 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par joints élastiques, p. ex. joints toriques

Abrégé

A solid seal, in particular used in electrochemical cells, comprises a continuous and solid ceramic core (1) comprising two opposing faces on which glass or vitroceramic beads (22, 23) are deposited. This seal is heated to a physically free state in order to evaporate the binders initially present in the bead paste. This makes it possible to effectively control the shape of the bead, the quantity of glass deposited and the final thickness of same, and assists degassing. The solid seal obtained is then inserted into the assembly comprising the electrochemical cell, which can then be clamped by exerting compressive stress on said seal, which relieves the cell and prevents risks of rupture.

Classes IPC  ?

• H01M 8/02 - Éléments à combustibleLeur fabrication Détails

Abrégé

The invention relates to a seal, including a central layer (5) made of an electrically insulating material, two metal outer layers (6, 7), having patterns (8, 9) capable of deforming by being flattened against the bearing surfaces (2, 3) to be sealed so as to maintain the seal while providing a sealing barrier at the connections, and intermediate layers (10, 11) made of a vitreous material in order to ensure the connection to the preceding layers while absorbing the deformations resulting from the differential expansions. The invention can be used in high-temperature electrolysis or in fuel cells.

Classes IPC  ?

• F16J 15/12 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique par renforcement ou couverture métallique
• H01M 8/24 - Groupement d'éléments à combustible, p. ex. empilement d'éléments à combustible

Abrégé

The disclosure relates to a seal inserted between two elements having different coefficients of thermal expansion, the seal includes a first and a second metallic contact portion spaced along an axial stacking direction orthogonal with respect to a radial direction. Tight connection means between the first and second contact portions allow a relative movement between the first and second contact portions along the radial direction. A first and a second sliding part are respectively coupled in translation along the radial direction with the first and second contact portions and are stacked so as to be able to slide in relation to each other along the radial direction.

Classes IPC  ?

• H01M 8/0276 - Moyens d’étanchéité caractérisés par leur forme
• H01M 8/0282 - Matériau inorganique
• C25B 9/06 - Cellules comportant des électrodes fixes de dimensions stables; Assemblages de leurs éléments de structure
• H01M 8/0271 - Moyens d’étanchéité ou de support autour des électrodes, des matrices ou des membranes
• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• C25B 9/00 - Cellules ou assemblages de cellulesÉléments de structure des cellulesAssemblages d'éléments de structure, p. ex. assemblages d'électrode-diaphragmeCaractéristiques des cellules relatives aux procédés
• H01M 8/124 - Éléments à combustible avec électrolytes solides fonctionnant à haute température, p. ex. avec un électrolyte en ZrO2 stabilisé caractérisés par le procédé de fabrication ou par le matériau de l’électrolyte

Abrégé

The compression between two blocks (5, 6) establishing a dynamic seal (13) between a rotor (2) and a stator (1) is provided by an inflatable seal (7) housed in a groove. When the blocks (5 and 6) are intended to be sectile, that is to say divided into two parts in order to be assembled around the shaft (2), the seal (7), which at first is linear, is wound around in the groove and the ends thereof join up. Said seal provides uniform compression around the circumference and no longer requires any significant disassembly of the apparatus in order to be placed.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties

Abrégé

The invention relates a static sealing element (1) which includes a resilient conical ring (10) the deformation of which enables force to be transmitted, a casing (18) for establishing the seal, and two bearing rings (27 and 28) which transmit the original effects of the resilient ring (10) to the bent-back edges (20, 21) of the casing (18) so as to exert pressure thereon, which ensures the seal. The casing (18) can thus be made of a material which is ductile but less deformable than ordinary elastomers.

Classes IPC  ?

• F16J 15/34 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties
• F16J 15/36 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre par bague glissante pressée contre la face plus ou moins radiale d'une des deux parties reliée par un diaphragme à l'autre partie

Abrégé

The invention relates to a seal (10) provided between two elements (4', 6) having separate thermal expansion coefficients, wherein said seal includes: a first and second metal contact portion (16a, 16b) spaced from each other in an axial stacking direction (8) orthogonal to a radial direction (20); sealed-linking means (14) provided between the portions (16a, 16b) and enabling a relative movement between the latter in the radial direction; and a first and second sliding part (24a, 24b) respectively coupled in translation to the portions (16a, 16b) in the radial direction, and stacked in such a way as to slide relative to each other in the radial direction.

Classes IPC  ?

• C09K 3/10 - Substances non couvertes ailleurs pour sceller ou étouper des joints ou des couvercles
• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• H01M 8/0276 - Moyens d’étanchéité caractérisés par leur forme

Abrégé

The invention relates to a seal (10) provided between two elements (4', 6) having separate thermal expansion coefficients, wherein said seal includes: a first and second metal contact portion (16a, 16b) spaced from each other in an axial stacking direction (8) orthogonal to a radial direction (20); sealed-linking means (14) provided between the portions (16a, 16b) and enabling a relative movement between the latter in the radial direction; and a first and second sliding part (24a, 24b) respectively coupled in translation to the portions (16a, 16b) in the radial direction, and stacked in such a way as to slide relative to each other in the radial direction.

Classes IPC  ?

• F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
• H01M 8/02 - Éléments à combustibleLeur fabrication Détails

Abrégé

This seal comprises an outer envelope (4) that may be made of PTFE, an inner core (8) made up of an air-permeable sack (9) partially filled with a granular fluid (10). When the bearing surfaces (1, 2) that are to be sealed near one another, the sack (9) is squashed, the upper volume of air (11) escapes to the outside, the grains (10) transmit a substantial contact pressure between the lips (5, 6) of the envelope (4) and the bearing surfaces (1 and 2). They may have moved during the squashing movement so as to even out the pressure by redistributing themselves in the sack even if there is a significant lack of flatness between the bearing surfaces (1, 2).

Classes IPC  ?

• F16J 15/14 - Joints d'étanchéité entre surfaces immobiles entre elles au moyen d'un matériau en grains ou en matière plastique ou d'un fluide
• B01J 3/03 - Récipients sous pression, ou récipients sous vide, comportant des organes de fermeture ou des joints d'étanchéité spécialement adaptés à cet effet
• F16L 23/16 - Raccords à brides caractérisés par les moyens d'étanchéité

Abrégé

The invention relates to a method for preparing an exfoliated vermiculite that comprises the following steps: the step of heating a hydrated non-exfoliated vermiculite at a temperature of between 400 and 600°C for a duration of 3 to 7 hours, thus generating a dehydrated vermiculite; the step of contacting the dehydrated vermiculite with a solution containing an interleaving agent degradation with gas release. The invention can be used in the field of thermal insulation.

Classes IPC  ?

• C04B 14/20 - MicaVermiculite

Produits et services

Fittings and housings, in particular for chemical, petrochemical, process engineering and transport industry purposes; replacements for devices and apparatus for conducting and processing gases and liquids, in particular valves and pistons for compression technology. Sealants and sealing material, in particular metal gaskets, flat sealing materials, levelling ring gaskets, rotary shaft seals, gland packings, expansion joints, inflatable gaskets, membranes and seal lips; jointing material. Repair and maintenance of devices and apparatus for sealing conduits and housings, in particular in the field of compression technology. Engineering, in particular in the field of sealing technology; planning of sealing systems.

Produits et services

Joints d'étanchéité (parties de moteurs). Joints d'étanchéité (y compris métalliques).

Produits et services

Presse-étoupe pour machines de toutes sortes (pompes, sorties d'axe en général), utilisés pour tous fluides et produits abrasifs, corrosifs, visqueux et pulvérulents. Joints industriels et garnitures mécaniques d'étanchéité pour machines de toutes sortes (pompes, sorties d'axe en général), utilisés pour tous fluides et produits abrasifs, corrosifs, visqueux et pulvérulents.

Produits et services

Boîtes de garnitures et garnitures métalliques pour boîtes à étoupe, joints (raccords) pour conduites de fluides, pour tuyaux et tuyauteries en général, pour pompes et autres organes de pompage. Matériaux de garniture, garnitures de presse-étoupe et d'étanchéité pour machines de toutes sortes; joints pour conduites de fluides, pour tuyaux et tuyauteries en général, pour pompes et autres organes de pompage.

Produits et services

(1) Joints d'étanchéité.