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Russian patents in English sorted by IPC

A - HUMAN NECESSITIES
(94253)
B - PERFORMING OPERATIONS; TRANSPORTING
(56792)
C - CHEMISTRY; METALLURGY
(58886)
D - TEXTILES; PAPER
(3254)
E - FIXED CONSTRUCTIONS
(20180)
F - MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
(35533)
G - PHYSICS
(44615)
H - ELECTRICITY
(29605)
Biodegradable polymer composition

Biodegradable polymer composition

Invention relates to biodegradable polymer composition, which includes polylactic acid, polyglycolic acid and accelerator of ester decomposition from inorganic disperse substance, which accelerates hydrolysis of said polyglycol.

Device of fluid medium flow distribution for catalytic reactors with descending flow

Device of fluid medium flow distribution for catalytic reactors with descending flow

Invention presents a device of fluid medium flow distribution for connection with a pipeline or a gas duct for fluid medium with the purpose to improve distribution of polyphase mixture flowing downwards and including one gas phase and one liquid phase above a single layer of catalyst of granulated solid catalytic material. The fluid medium distribution device for production of liquid and gas phases has one or more holes in the upper and/or lower part, along which the gas phase may arrive, and a gas duct leading to a mixing chamber inside the device. The fluid medium distribution device comprises one or several side holes for liquid. A side hole or holes make it possible for liquid to arrive to a liquid pipeline, which enters the internal mixing chamber. The mixing chamber provides for tight contact between liquid and gas phases.

Veneer processing by fire retardant

Veneer processing by fire retardant

Invention relates to woodwork, particularly to processing of veneer by fire retardant. This method comprises spraying of aqueous solution of fire retardant based on ammonium salt of orthophosphoric acid on veneer sheet surface. Spraying is performed at solution temperature of 40-50°C in at least two steps with intermediate holding of veneer sheet between said steps and final drying after final step.

Method of protection of irrigation pipeline from siltation in application of liquid fertiliser in irrigation system

Method of protection of irrigation pipeline from siltation in application of liquid fertiliser in irrigation system

Method comprises fixing the time of feeding the liquid fertiliser to agricultural fields of irrigation and volume of feeding the compressed air and oxygen released from it by directing the compressed air from the air supply pipe to the section with a partition and with a flexible inner protective coating and portion feeding the air by command of the relay time. Each section is fixed in the pipeline with a closed chamber, which alternates with the free part of the pipeline. Introduction of the protective coating having micropores enables through the partition in the form of a perforated tape to feed the pressurised air into the pipeline cavity. When filling the cavity of irrigation pipeline with sewage or livestock wastes, the compressed air is entered with the release of oxygen from it by directional action into the pipeline cavity along its length. Simultaneously the destruction of accumulation of silt, fine sediments and the release of harmful gases formed as a result of action of microorganisms from the accumulated silt is carried out. Irrigation is carried out to the fields of irrigation through an open hydrant-riser that enables to clean the closed irrigation pipeline with the flows. For preventive flushing of the irrigation pipeline after termination of fertilizing irrigation with the flows, pure water from the collector is used for flushing with simultaneous feeding the compressed air and released oxygen directly into the cavity of the pipeline, connected to the open disposal collector-drainage network through the valve of the downshaft.

Method of obtaining dry zinc white and installation for method realisation

Method of obtaining dry zinc white and installation for method realisation

Method of obtaining dry zinc white includes zinc evaporation in evaporation furnace at temperature 1200-1350°C and vacuum in the system furnace-exhaust fan 50-100 Pa from the surface of zinc melt 3-5 m2 with thickness of zinc melt 250-350 mm. Removal of zinc vapours from the evaporation zone is realised at the height 450-55 mm from the melt surface. Layer of zinc melt is heated from both sides of furnace due to combustion of natural gas in zones of heating, separated from zinc melt with brickwork of refractory bricks. Zones of heating are divided into 1200-1350 mm long sections. After that, oxidation of zinc vapours in reactor of dry zinc white synthesis is carried out with air oxygen heated to 180-300°C. Air intake is performed from the height of 10-15 m. Mixing of zinc vapours and air is carried out for not less than 2 s in mode of tangential introduction of their flows from the opposite sides of reactor. Obtained aerosol of dry zinc white is transported by whitewash line into section of zinc white and air separation. After that, collection of zinc white in tanks and discharge into packing containers are carried out.

Method of heating of long items, such as steel pipes, and powder coating polymerisation in furnace

Method of heating of long items, such as steel pipes, and powder coating polymerisation in furnace

Method involves preliminary furnace heating to a given temperature by heating source, item loading, item heating to required temperature and temperature adjustment, further coating polymerisation with further cooling, where heated gas flow is added from gas turbine motor of gas turbine power plant to flue duct in furnace chambers for item heating and in furnace chambers for applied powder coating polymerisation, direction and volume of heated gas flow proceeding to furnace chambers is adjusted automatically by draught generated by flue duct and gas turbine motor, heated gas flow temperature is adjusted to a given value. In furnace chambers for item heating, heated gas flow is directed along spiral towards external and internal surfaces of rotating item to ensure heat exchange in turbulent flow of heated gas and regular and efficient heating, while in furnace chambers for polymerisation, heated gas flow is directed to walls of furnace chambers. First furnace chamber is pre-heated, a batch of items is loaded and heated to a given temperature in the first furnace chamber, excessive volume is utilised in the second and further furnace chambers for pre-heating, and items are withheld in the first chamber to remove various corroding media that reduce adhesion strength.

Crevice sprinkler nozzle

Crevice sprinkler nozzle

Invention relates to a technique of irrigation with fine and drip sprinkling and can be used in mobile units for obtaining rain with droplet size allowable for irrigation of wide range of cultivated crops with increased energy and vitality of water. In the crevice sprinkler nozzle the diffuser is made trapezoidal, expanding in horizontal plane and narrowing in vertical plane. The cylindrical housing, performing a function of the connecting pipe, is coupled with the walls of the diffuser by parabolic curves. At the outlet part of the trapezoidal diffuser the horizontal shell is made, forming a gap. Cross-sectional open area of the slit is equal to the cross-sectional open area of the inner cavity of the cylindrical housing. On the inner wall of the shell the flow dividers are formed, having a shape of half of a cone of rotation with a spherical base. The flow dividers are placed on the walls of the horizontal shell in chessboard manner.

Counter-flow reactor with boiling layer

Counter-flow reactor with boiling layer

Counter-flow reactor with a boiling layer contains a vertical heated housing consisting of rings, separated into sections by the punched plates, source dispersible material loading unit, located above the housing, which is fitted with a worm-dispensing system installed at an angle with reference to the line of horizon, reactionary gas supply unit located in the reactor lower part, product unloading bin and separator, comprising an optically dense structure returning particles of the source material into the reactor housing. Meanwhile the punched plates are designed as cone-shaped partitions with coaxial overflow hole and located on the cone generatrix of the partition with holes for gas flow.

Continuous preparation of multicomponent mixes of loose materials

Continuous preparation of multicomponent mixes of loose materials

Proposed method comprises continuous proportioning of components, their loading into mixer at distance from discharging proportional to bulk densities and/or particle sizes, mixing and discharging of finished mix. Loading of components is performed continuously over mixer length, up to drum discharge edge. Entire period of loading key components is divided into three equal intervals. Loading intensity varies depending upon concentration of said key component after loading period of every component is divided in at least three unequal portions. Proposed device comprises continuous mixer, dispensers of components, loaders of components and finished mix discharge assemblies. Proposed device comprises n-1 perforated pipes arranged inside the mixer in its axis and provided with drives. Perforated shells are fitted at the tube to turn thereon. In initial position, all shell holes are aligned with those in tube. Every shell is divided into, at least, three equal parts with independent turnabout tube. Note here that said every part incorporates drive for its specified turn about the tube.

Method and apparatus for monitoring and restoring electrical properties of polymerisation reactor wall film

Method and apparatus for monitoring and restoring electrical properties of polymerisation reactor wall film

Invention relates to an olefin polymerisation method and specifically to monitoring and restoring electrical properties of polymerisation reactor wall films. The method includes, during a polymerisation reaction, using a static sensor in a fluidised-bed reactor system to monitor a properties of a coating comprising a polymer film on the surface of the reactor system and a protruding portion of the static sensor, wherein the coating is exposed to flowing fluid within the system, said monitoring including operating the static sensor during a first interval of time during the reaction in order to generate high-speed data indicative of bubbling in the fluidised bed, and determining from the high-speed data an electrical property of the coating, comparing the value of the electrical property determined above with a reference breakdown voltage of the coating, and if said value is less than the reference value, adding a continuity additive to the polymerisation reactor for a period of time until the determined electrical property of the coating is greater than or equal to the reference breakdown voltage of the coating.

Liquid atomiser

Liquid atomiser

In liquid atomiser the plated bumper is attached axially to the housing to the end face of the nozzle. The bumper consists of at least two plates perpendicular to the housing axis and parallel to each other. The first plate is attached to the end surface of the nozzle through at least three fastening elements comprising a screw and placement shims mounted between the plate and the end surface of the nozzle. The first plate has a central opening. The second plate is made solid and attached to the first one by means of at least three fastening elements comprising a screw and placement shims mounted between the plates. On the conical side surface of the nozzle coaxially to the housing an atomiser is fixed covering the plated bumper and made in the form of a perforated diffuser.

Producing moulded metal particles and use thereof

Producing moulded metal particles and use thereof

Invention relates to moulded particles of transition metals, particularly in the form of a dispersion in an aqueous and/or organic medium, to production thereof and to use thereof as an agent which absorbs infrared radiation, an infrared curing agent for coatings, an additive in conducting compositions, printing ink and coating compositions, an antimicrobial agent or for detecting organic and/or inorganic compounds. A dispersion of transition metal nanoparticles is obtained in the form of nanoplates. The metal is selected from a group consisting of Cu, Ag, Au, Zn, Cd, Ti, Cr, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir and Pt. An aqueous solution of a reducing agent is added to the cooled aqueous mixture containing a transition metal salt and a polymer dispersing agent. The obtained colloidal dispersion is treated with peroxide. In another version of producing a dispersion of nanoparticles, water is partially replaced with an organic medium. The dispersion substantially consists of the obtained transition metal particles and a thermoplastic polymer or a cross-linkable polymer.

Liquid crystalline emulsion of oil-in-water type and method of obtaining liquid crystalline emulsion

Invention relates to liquid crystalline emulsion for application in thermo-optic matrix for early diagnostics of neoplastic affections of mammary gland. Liquid crystalline emulsion (LQE) of oil-in-water type consists of a) continuous phase, water phase, containing water, ethyl alcohol, acetone, polyvinyl alcohol, dispersing agent and boric acid, b) disperse phase, oil phase, containing mixture of thermotropic liquid crystals. (LQE) includes from 14 wt % to 48 wt % (counted per dry weight) of mixture of thermotropic compounds and from 50 to 86 wt % (counted per dry weight) of polyvinylalkohol. Invention also relates to method of obtaining liquid crystalline emulsion.

Kochetov's swirl injector

Kochetov's swirl injector

In swirl injector the screw feed is pressed in the casing creating a cylindrical chamber located above the screw feed coaxially with the diffuser and connected with it in series. The screw feed is made with central choke. The screw feed external surface is at least single-thread helical groove and is located inside the casing. Output of the helical groove is connected with the output cone chamber, to its end face the plate sprayer is connected. On the solid plate of the sprayer under option of its plain design the thread is made in form of the Archimedean spiral. On the solid plate under option of its making convex on surface of the truncated cone a screw thread is made.

Microjet cartridge with parallel pneumatic interface card

Microjet cartridge with parallel pneumatic interface card

Cartridge contains three-dimensional channel (103) for fluid medium, in which fluid medium (104) should move, and flexible diaphragm (105). Flexible diaphragm stretches in the plane and is a part of cartridge external surface, and boundaries in space of three-dimensional channel for fluid medium are determined in three coordinates by internal walls of cartridge and the flexible diaphragm. The flexible diaphragm is in ground state without impact of pressure and vacuum on it and is designed with possibility to incurve relative to the ground state under impact of pneumatic forces perpendicular (106) to the plane of flexible diaphragm in two directions, when cartridge is located on parallel pneumatic interface card. Pneumatic interface card (101) is located between this cartridge and pneumatic measuring device (102) and contains a side directed to measuring device (119), when interface card is installed in measuring device, and to the side directed to cartridge, when cartridge is located on interface card. Also the card contains pneumatic channel (122, 123, 138) for connection of pneumatic fluid medium of pneumatic measuring device with the side directed to the measuring device to the side directed to the cartridge in order to provide pneumatic actuation of flexible diaphragm of microjet cartridge.

Epoxy composition

Epoxy composition

Invention relates to the field of epoxy compositions, in particular fast hardening epoxy compositions, used as glues, and a binder for the production of composite materials. The epoxy composition includes, at least, one epoxy novolac resin, or epoxydiane resin, or their mixture, an aromatic amine hardener and a curing accelerator, as the latter, it contains urethane rubber of casting grades SKU PFL.

Fast hardening hot curing epoxy composition

Fast hardening hot curing epoxy composition

Invention relates to the field of epoxy compositions, in particular to fast hardening hot moulding epoxy compositions, used as a binder for the production of composite materials by methods of pultrusion, casting, autoclave moulding. A hot curing epoxy composition includes at least one epoxy resin or its mixtures with epoxy resins, an anhydride hardener and phosphonium salt as a catalyst, selected from the group of quaternary phosphonium salts of the general formula where R1R2R3 are butyl or phenyl radicals, R4 is an aliphatic radical, containing 2-14 carbon atoms, X-H, phthalimide, Br, COO-, P(R1R2R3)+, A--Cl-, Br-.

Method of obtaining polymer foam composition (versions)

Invention relates to foamed polymers. A freshly prepared foam-polyurethane composition is mixed with a freshly prepared polyether or epoxy composition in the concentration of 0.1-99.9% or a monomer of a foam-polyurethane composition is mixed with a monomer of the polyether or epoxy composition in the concentration of 0.1-99.9%, and solidifying agents of the said compositions are mixed in exactly the same concentration, after which mixing of both monomers with both the solidifying agents is carried out.

Butyl ion-containing polymers for application aimed at reduction of population and/or prevention of accumulation of organisms and coatings made thereof

Butyl ion-containing polymers for application aimed at reduction of population and/or prevention of accumulation of organisms and coatings made thereof

Invention relates to the application of butyl ion-containing polymers or partially halogenated butyl ion-containing polymers for the reduction of a population and/or prevention of accumulation of organisms, at least, on the surface of products, in a composite material, and in a moulded product. The organisms can be represented by bacteria, algae, fungi, molluscs or arthropods. A butyl ion-containing polymer is obtained from, at least, one isoolefin monomer and, at least, one multiolefin monomer. The butyl ion-containing polymer contains a cationic nitrogen-containing functional group or cationic phosphorus-containing functional group. The invention also relates to a surface coating for products, containing the said butyl ion-containing polymer.

Improved redox solution for gas desulphurisation

Invention relates to the chemical industry. A solution contains a chelating agent, representing a mixture of a disodium salt of ethylenediaminetetraacetic acid Na2H2 EDTA and a tetrasodium salt of ethylenediaminetetraacetic acid Na4 EDTA, a water-soluble salt of iron (III), a mixture of one or more water-soluble nitrite salt and phosphate compounds, and a solvent. The phosphate compounds are selected from the group, consisting of phosphate, polyphosphate, hydro- and dihydrophosphate salts and their mixtures. As the solvent water or alcohol mixed with water is used. The molar ratio of nitrites to the formed chelate iron constitutes from 0.001 to 2.0.

Method and device for production of food products

Method and device for production of food products

Set of inventions relates to mixing and can be used for mixing of food products. Food mixing machine (10) comprises vessel holder (38) with the vessel support shaft. Mixer (30) is revolved by motor (22) on its shaft above said vessel holder (38). Motor (47) sifts the vessel holder (38) upward for selective placement of said mixer (30) with the shaft displacing from vessel holder (38) axle. Motor (45) can revolve vessel holder (38) on its shaft with mixer (30) located in said vessel.

Caoutchouc composition, containing blocked mercaptosilane as binding agent

Caoutchouc composition, containing blocked mercaptosilane as binding agent

Invention relates to a caoutchouc composition from diene caoutcoucs, which does not contain zinc or contains less than 0.5 wt.p. of zinc, counted per an elastomer, and suitable for manufacturing pneumatic tyres and tyre treads. The caoutchouc composition contains a diene elastomer, a cross-linking sulphur-based system, one inorganic filling agent as an active filling agent, a blocked mercaptosilane of the general formula (I): (R3O)R2R1-Si-Z-S-C(=O)-A, where R1 and R2, being similar or different, represent monovalent hydrocarbon groups, selected from linear or branched alkyls, cycloalkyls or aryls, containing 1-18 carbon atoms; R3 represents a monovalent hydrocarbon group, selected from linear or branched alkyls, containing 1-4 carbon atoms; A represents hydrogen or a monovalent hydrocarbon group, selected from linear or branched alkyls, cycloalkyls or aryls, containing 1-18 carbon atoms; and Z represents a bivalent binding group, containing 1-18 carbon atoms.

Capsule, system and method for preparation of beverage by way of centrifugation

Capsule, system and method for preparation of beverage by way of centrifugation

Invention relates to a capsule system for beverages preparation by way of the capsule centrifugation in the centrifuge brewing device. The capsule system contains a set of different capsules (1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L), each intended for selective preparation and serving of beverage with certain characteristics differing from those of beverages prepared in other capsules of the set; each capsule of the set, containing an extractable or brewable ingredient, has a body with a side wall and a free rim as well as an upper wall. The capsule body has a register diameter (D) for the capsule installation in the preset position in the capsule holder of the centrifuge brewing device. The bodies of different capsules in the set have different working volume due to different depth (d1, d2, d3) of the bodies but the identical register diameter (D) for all the capsules of the set.

Method of moulding articles containing polybutadiene

Method of moulding articles containing polybutadiene

Invention relates to production of moulded articles containing polybutadiene and can be used in tire production as moulded strips for tire sidewalls or treads. Polybutadiene with content of cis-isomer over 95% and polydispersity lower than 2.5 is mixed with highly dispersed silicic acid and/or carbon black and with cross-linking agents, sulphur or sulphur donors, extra process additive and subjected to extrusion at 40-75°C.

Functionalised diene caoutchoucs

Invention relates to functionalised diene caoutchoucs, their obtaining, to rubber mixtures, containing the functionalised diene caoutchoucs, to the application for manufacturing highly-filled rubber moulded products, especially tyres. The functionalised diene caoutchouc is obtained by the polymerisation of dienes and vinylaromatic monomers and conversion with hydroxymercaptanes in a solvent in an amount of 0.1-5.0 g of hydroxymercaptane per 100 g of the diene caoutchouc. Conversion is carried out in the process of polymerisation.

System for portioned preparation of food products

System for portioned preparation of food products

System for portioned preparation of liquid food products contains a liquid supply means (2, 41) and a container (4, 38) containing the components; the said container has a hole (8) with the system additionally containing an intermediary liquid injection device (9, 37) for supply of liquid into the container (4, 38) so that to obtain a liquid food product; the liquid injection device (9, 37) contains the liquid inlet (11, 43) and the product outlet (16, 48) for removal of liquid food product from the container; the intermediary liquid injection device contains a wall (10) passing crosswise relative to the container hole in the process of the system operation; the crosswise wall (10) contains the liquid inlet (11, 43) and the product outlet (16, 48) that are spaced in the crosswise direction along the wall.

Radial squeezing machine driver centre

Radial squeezing machine driver centre

Invention relates to metal forming and may be used in producing 4.5-30 mm-calibre gun barrels. Pipe billet radial-squeezing machine hollow driver arranged at front part and provided with teeth is shaped to truncated cone with its base centre changing into cylinder with outer lengthwise grooves without rear walls while its read part changes into the stem. Note here that larger-diameter is made at the driver front end exposed to smaller-diameter through chamber. Conical chamber without thread is made at driver front end while cylindrical chamber with thread is made at its top. Side surfaces of the latter are engaged with appropriate surfaces of screwed-in sleeve with auxiliary elements for appropriate wrench intended for assembly for driver or replacement of worn-out sleeve. Besides, seals are arranged in driver body grooves to rule out the ingress of water-based lubricant-coolant in the zone of contact between body and sleeve. There are transverse openings in said body for discharge of lubricant-coolant at machine operation.

Device for finishing and hardening processing

Device for finishing and hardening processing

Device comprises a drum with a drive and loading and unloading units elastically installed on a bed. The drum is designed as a cylinder installed obliquely with reference to horizontal axis of the cylinder with face elliptic walls. The face wall of the loading unit is designed flat and mounted at an angle to the drum rotation axis. The face wall of unloading unit is perpendicular to the drum rotation axis and has a conic shape. Along the whole length of the drum the a cylindrical wavy spring with flat cross section of windings and with the direction of windings coinciding with the direction of the drum rotation is mounted, which is fitted with the device for varying of step of windings at the expense of its expansion or compression.

Method for obtaining cylindrical workpiece in form of rod from metallic reinforced composite material

Method for obtaining cylindrical workpiece in form of rod from metallic reinforced composite material

Method involves arrangement in a cylindrical vessel of wire from strengthening metallic material, melting of die metal, filling of the vessel with molten metal of the die and its crystallisation; with that, wire from strengthening material obtains a shape of a spiral with turns that do not adjoin each other, the vessel is made in the form of a tube, filling of the vessel with molten metal is performed by its suction at the ageing temperature of strengthening metallic material, and after the vessel is filled, exposure is provided, which is sufficient for completion of an ageing process.

Wheel-track vehicle for handicapped person

Wheel-track vehicle for handicapped person

Wheel-track vehicle for a handicapped person comprises a frame, a chair, a wheel propeller with a front wheel and a pair of rear wheels and a track propeller. The latter comprises a trolley with driving sprockets, guide elements and a pair of tracks with a fracture of transition of their lower branch into the rear one. There are reversible drives of wheel and track propellers, including an electric one, a source of autonomous power supply, brakes and a system of control of motion modes. The control system includes a device for rotation of the front wheel and a device of selective input of one of the specified propellers in interaction with the support surface. The trolley of the track propeller is combined with the frame. The device of selective input of one of the specified propellers in interaction with the support surface is made in the form of a lever suspension of rear wheels with drives of rotation of suspension levers in vertical planes, with the possibility of inclination of lower branches of tracks in backwards-upwards in the wheel-mounted position of the vehicle. The front wheel is arranged in the form of a motor wheel with the possibility of movement of the vehicle in the speed range (up to 20 km/hr), and the device of its rotation - in the form of a steering column with the possibility of rotation of the front wheel in the range of angles ±90°. There is a device of independent rotation of rear wheels, at least the left to the left, and the right to the right in the range of angles from zero to the value providing for kinematic rotation of the vehicle with zero radius. There are additional structural criteria of a device.

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