Abstract: A hollow fiber membrane type artificial lung and a method for the manufacture thereof.

Abstract: A method for forming a deposited film by forming a gaseous atmosphere of a hydrogenated silicon compound of the general formula Si.sub.n H.sub.m wherein n is an integer of 1 or more, and m is an integer of 2 or more in a chamber housing a substrate therein and forming a deposited film containing silicon on said substrate by excitation of said compound to effect decomposition or polymerization thereof comprises introducing a gaseous radical polymerization initiator into said chamber and utilizing light energy, thereby exciting said compound to effect decomposition or polymerization thereof.

Abstract: A method for fashioning ink channels in a write head for a dot-matrix ink printer means, whereby respective form needles cylindrically surrounded by piezo electric drive elements are aligned in a casting mold in accord with the desired course of the ink channels to be fashioned, are cast out with a casting compound and, after the curing of the latter, are removed upon formation of the respective ink channels partially surrounded by the allocated piezo electric drive elements, and insulation of the drive elements from a writing fluid in the ink channels is acheived in a way that is simple in terms of production engineering. The ink channels are filled with a liquid or dissolved plastic and are emptied after the inside channel walls are moistened with the plastic, so that a thin protective layer remains on the inside channel walls. The new method serves for the manufacture of ink printer heads that work based on the principle of individual drop ejection (drop on demand).

Abstract: An apparatus for treating air core cables such as air core plastic insulated telephone cables, which includes a treatment tank provided with air and liquid application piping; an air application saddle or fitting and at least one liquid application saddle or fitting applied to the telphone cable in spaced relationship, with air and liquid application connections extending from the saddles; and a cable block sealing a segment of the air core cable to be treated. Air and liquid are applied in sequence to the plastic insulated cable pairs located in the cable, in order to clear water and other fluids from the cable and restore electrical transmission through the cable pairs.

Abstract: The medium and liners of a water resistant containerboard are each essentially completely impregnated by a liquid water resistant agent which also uniformly coats the surfaces of the medium and liners with a layer sufficiently thick to cover the outer extremities of fibers protruding from such surfaces.The coating and impregnation is accomplished by feeding a flat untreated corrugated containerboard in the direction of its open flutes and in a continuous movement into and out of a hot melt bath of the water resistant agent at a controlled speed sufficient to force the liquid agent through the flutes of the containerboard, so as to assure exposure of all surface portions of the board to the hot melt for the same amount of time at the same temperature conditions.

Abstract: A process and apparatus for manufacturing self-locking fasteners in which a resin deposit of patch is applied to a portion of the threads. A resin stream entrained in a gaseous jet is directed through a nozzle which is an axial registration with the fastener. The nozzle has an end wall and an arcuate slot therein which directs application of the entrained resin to the threads of the fastener in a controlled manner.

Abstract: A method and an apparatus for interior coating of hollow bodies comprising a mandrel introducible into at least one tubular body, a coating arrangement on the mandrel for applying a coating medium to an interior of the tubular body and a heating mechanism on the mandrel and arranged so as to predominantly deliver heat directly from the mandrel into a surrounding area toward the tublular body. The heat-applying efficiency of burning in a coating medium can be improved by applying the heat from the interior at least predominantly directly to one of an interior area of the tubular body just before being coated and an interior area of the body already coated to burn in the coating according to the disclosed method.

Abstract: The present invention relates to a method for obtaining a tenacious in-situ coating deposition of calcite on the inner surface of water pipes at very high rates. The calcite producing ingredients are supplied to the water stream in quantities supplementing concentrations available in the natural water used, giving the required supersaturation levels by addition of suitable salts to provide an aqueous lining solution supersaturated with respect to calcium carbonate containing dissolved calcium and carbonate ions. The method consists in maintaining the suspended calcium carbonate particles concentrations in the lining solution below 300 ppm, the excess suspended particles being removed by physical means. The calcite coating deposition according to the present invention has the advantage that it occurs at the rate of above 5 microns/h and even above 50 microns/h, maintaining a completely corrosion-free system during the coating. The method is applicable to lead pipes, cement mortar linings or asbestos pipes.

Abstract: A process for providing a corrosion resistant synthetic plastic resin coating on a surface of a concrete structure comprises cleaning the surface of the concrete structure, forming a fiber containing sprayed concrete layer having a plurality of fiber components therein, for example glass fibers or plastic fibers, on the surface of the concrete, and subsequently applying a synthetic plastic resin thereto, whereby the fiber components projecting from the fiber containing sprayed concrete layer act to anchor the synthetic plastic resin to form the corrosion resistant coating. The corrosion resistant synthetic plastic resin coating preferably contains a polyester resin, and a polymer-cement-concrete base layer may be used to help bond the fiber containing sprayed concrete layer to the cleaned concrete surface.

Abstract: Apparatus for applying a coating of paraffin wax to sheets of corrugated paperboard. The sheets are fed in a generally horizontal attitude through a bath of molten wax disposed in an elongated tank. Chain belt conveyors provide upper and lower flights to hold the sheets as they are passed through the bath.

Abstract: A decorative light and method of manufacture thereof, said light having an outer transparent tube, a pair of electrical supply wires in the tube, and a plurality of miniature lamps within the tube, the lamps being connected in series between the supply wires, and a protective dielectric material within the tube which coats the supply wires and the lamps forming a protective dielectric cushioning layer between said wires and lamps and the walls of the tube to prevent electrical failure of the decorative light tube circuit as a result of moisture, shock and vibration.

Abstract: In order to coat hollow bodies, which are open at one end, such as a metal can provided with a bottom, with a lacquer or the like, the hollow bodies are passed in a continuous operating cycle through en electrophoretic immersion bath in such a way, that they are rapidly and completely flooded with immersion bath liquid, so that they can be coated electrophoretically with a wet film in the immersion bath. After a sufficiently long coating time, the hollow bodies are lifted out of the immersion bath and the immersion bath liquid, contained in them, is poured out. The hollow bodies, so coated, are carried at a distance from each other to a drying kiln, in which they are dried, whereupon they can be printed or labelled.

Abstract: A method for the manufacture of an artificial organ having a film of a fat-soluble vitamin deposited on the surfaces of parts of said artificial organ susceptible to contact with body fluid in motion through a zone for flow of said body fluid within said artificial organ, which method is characterized by the steps of causing a solution of said fat-soluble vitamin in an organic solvent to flow into said zone for flow of body fluid within said artificial organ and allowing said parts to be amply wetted with said solution, then discharging an excess of said solution out of said artificial organ, and subsequently drying said solution deposited on said parts thereby expelling said organic solvent from the solution. The invention also provides a method for sterilizing said artificial organ after contact with a physiologically harmless liquid.

Abstract: Coated internal surfaces of molding apparatus and a process for reducing the amount of sticking of material on the internal surface of a molding apparatus are disclosed. The coated substrate and the process both employ release compositions having very low surface tensions comprising (1) a linear or branched polymer containing ionic functional moieties and (2) a perfluorocarbon compound having a counterionic character. Such compositions dissolve in volatile acidic or basic solutions and result in salt precipitates which adhere to substrates upon the evaporation of the volatile acidic or basic solution.

Abstract: A pipeline needing leakage repair and/or prevention is filled with a liquid sealant in foamed state of the aqueous emulsion type. Then an excess amount of the sealant in the center of the pipeline is drained from the pipeline, and the sealant remaining on the interior wall of the pipeline is allowed to cure wherein the sealant contains fine particles of inorganic oxide weakly adhering to one another into aggregations, said aggregations easily breaking into such fine particles that they can enter and plug fine cavities of the interior of said pipeline.

Abstract: A composition is provided which, when applied to a metal surface, forms a corrosion-inhibiting film thereon. The composition comprises an epoxy resin, an effective amount of a curing agent for the epoxy resin, an alcohol, and a hydrocarbon diluent. The composition is applied by contacting the metal surface with the composition as one solution or as a hydrocarbon solution of the epoxy resin and a solution comprising the alcohol and the curing agent. The composition is particularly useful in the treatment of down-well metal surfaces in oil and gas wells to inhibit the corrosion of the metal.

Abstract: A process for the selective sealing of at least one end of a cellular module, the latter having rows of parallel channels for carrying at least two different fluids. The process consists of depositing a tight material on the end of the module to be sealed. Deposition is preceded by a preblocking operation using a material in the channels to be sealed which does not contribute to the actual sealing, but which serves as a mechanical support during the deposition of the sealing material, whereby only those channels having the preblocking material are sealed.

Abstract: A method for insulating slots of a rotor in an electrical rotating machine comprises steps of removing punching oil from a rotor core assembly by heating only the interior of the slots to a high temperature while axially compressing the rotor core assembly, applying a liquid electric insulating paint to the inner wall surfaces of the slots by introducing the paint only into the slots and then discharging the paint from the slots while pressurizing the rotor core assembly, applying a negative pressure to the lower ends of the slots to remove the paint collected at the lower ends of the slots, and heating at least the interior of the slots to bake the paint on the inner wall surfaces of the slots.

Abstract: A method for lining pipes of a pipeline. The method is characterized in that at a first stage, mist of plastics having a low viscosity is passed through the pipeline by carrier air at a low pressure, and at a second stage mist of plastics having a high viscosity is carried through the pipeline at a high pressure, thereby to form double layers of plastics on the inner wall of the pipeline.

Abstract: A method for lining pipes in a pipeline. The method is characterized in that the air in the pipeline is sucked from an outlet by a vacuum pump together with plastics mist, and additional air is supplied from an inlet of the pipeline at a low pressure, so that the pipeline is lined with the plastics. The residual plastics mist is recovered into a tank at the outlet end of the pipeline.

Abstract: Water mains, water pipes of apartment houses or water pipes of factories with an inner diameter that varies in size in order to accommodate the sections where branch pipes are installed can be lined by this method. Firstly, mixed fluid formed by mixing paint and air is blown into a pipe line to be lined wherein the pipe line is comprised of a number of sections each having a different diameter. The mixed fluid is blown into the end of the section with the smallest diameter. A flow volume of mixture fluid that passes through the pipe with the smallest diameter is regulated for the optimum value for the size of the pipe with the smallest of diameter. Next, additional compressed air to be used for fluid volume regulation is blown into the sections of the pipe where an inner diameter varies so that the flow volume of mixture fluid that passes through the sections where an inner diameter of the pipe line varies is regulated for the optimum flow volume for the size of the pipe.

Abstract: A method of forming a lining in a pipeline comprising forming on the inner surface of the pipeline a film of initiator and following the formation of this film of initiator, a layer of resin is formed on the film of the initiator for effecting accelerated cure of the resin thereby to form a cured lining in the pipeline inner surface.

Abstract: A method of effectively preventing the buildup of polymers on the internal surfaces of polymerization reactors by coating the inner surfaces with a thin organic film produced by electrolysis of phenol or phenol derivatives in a solution of a Lewis Base and a non-aqueous solvent.

Abstract: A simple and efficient method of manufacturing a syringe needle is provided herein, which involves spreading a resin solution on the entire inside and outside of a cut stainless steel tube having the dimensions of a syringe needle, hardening the resin on the inside and outside of said cut tube, removing the hardened resin from the outside of the cut tube, grinding one end of the tube with a grinder to form a main bevel, changing the contact angle between the grinder and the cut tube to form side bevels to produce a syringe needle tube having a piercing point at the ground edge of said tube, and washing away grinding materials and pollutants from the tube.

Abstract: A method for distributing fluid along the interior wall of a pipeline wherein a quantity of fluid is placed at a location in the pipeline and exposed at one side to a force acting in an axial and rotational direction. This force will cause at least a portion of the fluid to enter a helical path adjacent the pipeline which will force the material to be coated on the inner wall of the pipeline. As the fluid is coated on the pipeline wall it is exposed to an axial wiping force which smooths out the fluid coated onto the inner wall of the pipeline by removing the excess material.

Abstract: A one step method of applying a sealant onto the inside surface of a pipe, such as a gas pipe, to repair any defective portions that are likely to cause a leak and should be repaired. The sealant is applied and it is then dried and solidified to seal the leak portions of the pipe. Preferably, an injection means is used for supplying the sealant in a cylindrical shape so that every portion of the inner surface of the pipe will be coated.

Abstract: A method of lining a large pipe and small pipes branching therefrom with a seal composition, in which the pipes are lined as connected together, and the large pipe or the small pipes are lined first. The portion of the seal composition forced into the small pipes when the large pipe is lined with use of a running body is returned into the large pipe again and is subsequently applied, without being discharged from the system, to the lining layer of the large pipe as a top coat with use of a running body having a slightly smaller diameter than the running body. When one of the pipes has a greatly bent portion, a running body is used which comprises two members each shaped symmetrically, congruent with each other and interconnected by a flexible linear member.

Abstract: A spray process for plating nickel metal or ferrous metal surfaces using a solution containing nickel ions and hypophoshite ions.

Abstract: A method and apparatus for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure which comprises fixing one end of a flexible tubular lining material in such manner that the flexible tubular lining material is turned inside out at the fixed end to an annular fastener of a connecting assembly connected in the front thereof to a pipe to be treated and thereafter applying fluid pressure to the annular fastener from the rear of the assembly to push the tubular lining material forward within the pipe while effecting evagination of the tubular lining material at the same time at the top of the proceeding tubular lining material thereby attaching the inner surface of the tubular lining material exposed by evagination under pressure tightly to the inner surface of the pipe, characterized by previously forming a reservoir of the liquid resin enclosed in the interior of the unevaginated portion of the tubular lining material positioned in the rear of the ann

Abstract: A process of enameling the inside surface of hollow vessels, which have two openings at opposite points. In a hot-water reservoir to be enameled these openings are provided at both ends. One opening is connected to a vacuum pump and the other to a conduit which incorporates a valve and leads to an enamel slip reservoir. In a first step, a vacuum pump is operated to pre-evacuate the interior of the hollow vessel so that air is removed from the pores at the inside surface of the hollow vessel. In this step the valve in the slip conduit remains closed. When the vessel has been preevacuated to about 40 to 80 torrs absolute, the valve is opened so that slip flows suddenly into the hollow vessel and fills the pores while the evacuation is continued and slip is sucked into the hollow vessel until the slip emerges from the opening through which the hollow vessel is being evacuated.

Abstract: A wettable microporous diaphragm for electrolysis having a base of a fluorinated resin is disclosed. This diaphragm is prepared by depositing a copolymer of an unsaturated carboxylic acid and a non-ionic unsaturated monomer in the pores of the diaphragm. The diaphragm is particularly useful for the electrolysis of alkali metal chlorides.

Abstract: Water mains, water pipes of housing-development apartments or water pipes of factories can be lined by this method. At first epoxy resin solutions A and B are mixed. The epoxy resin paint is atomized by a rapid air stream. The gaseous mixture is still accelerated by another air stream and blown into a pipe to be lined. The mixture fluid adheres to the inner surface of the pipe and forms a lining layer from the inlet to the outlet of the pipe in succession. When the lining process finishes, the supply of epoxy resin paint is stopped but the air is still blown in to dry the paint quickly for a short time. The residual paint exhausted from the outlet is withdrawn and revived to liquid. This method is useful for the pipes with a diameter larger than 1/4 inch.

Abstract: Method for forming conductive, transparent coating such as may be used on the interior surface of a vitreous tubular member. In a carrier gas and exterior to the member to be coated, there is formed a vapor from a material substantially comprising organic tin halide compound having a predetermined condensation temperature and a predetermined decomposition temperature, with the temperature of the carrier gas and the formed vapor maintained between these temperatures. The member to be coated is heated to a temperature greater than the decomposition temperature of the organic tin halide compound and the heated carrier gas and formed vapor are longitudinally flowed through the heated tubular member. Upon contact with the heated tubular member, the vapor breaks down to form the transparent conducting coating. The carrier gas and residual heated vapor are flowed out of the member being coated and are cooled to condense and collect the residual material.

Abstract: Method for the in-situ deposition of a coating onto internal surfaces and matrix substrates of a body which defines one or more cavities. The single cavity, or the respective cavities packed with suitable substrates are provided with a predetermined amount of a solid reacting component to produce a suitable coating. The cavity is furnished with a liquid component which contacts the solid component, thereby forming a desired liquid coating reaction mixture. The latter is brought into contact with the cavity walls as well as with materials contained within the cavity, to achieve the desired coating of walls and matrix material.

Abstract: A method is disclosed for preventing stress corrosion cracking or metal embrittlement of a zirconium or zirconium alloy container that is to be coated on the inside surface with a layer of a metal such as copper, a copper alloy, nickel, or iron and used for holding nuclear fuel material as a nuclear fuel element. The zirconium material is etched in an etchant solution, desmutted mechanically or ultrasonically, oxidized to form an oxide coating on the zirconium, cleaned in an aqueous alkaline cleaning solution, activated for electroless deposition of a metal layer and contacted with an electroless metal plating solution. This method provides a boundary layer of zirconium oxide between the zirconium container and the metal layer.

Abstract: A method is disclosed for producing a pigment coating on a substrate. A hardenable polymer coating is initially provided on the substrate, followed by an excess of hardening agent. This produces a first hardened coating with sufficient hardening agent remaining to harden a second polymer coating, containing suspended pigment, which is deposited on top of the first coating. The polymer is then pyrolyzed, leaving a coating of pigment on the substrate.

Abstract: Novel method of treating capillary fibers comprising introducing into the capillary fibers a carbon chloride fluoride or a mixture of the carbon chloride fluoride with a material capable of forming an azeotrope therewith to remove selectively octyl alcohol, isopropyl myristate and the like from the capillary fibers, retaining glycerol within the wall of said capillary fibers.

Abstract: In can manufacturing apparatus there is provided an overhead magnetic conveyor for transferring cans from a conveyor upon which they are coated to a conveyor upon which the cans are dried. To remove excess coating material which tends to form a bead around the lower most edge of a can, a bath of coating material solvent is disposed adjacent to the transfer conveyor and has within it an endless belt conveyor to which cans on the overhead conveyor are caused to fall and from which those cans are subsequently returned to the overhead conveyor. The upper, can carrying course of the endless belt conveyor is disposed at a predetermined depth below the surface of solvent within the cans so that excess material accumulating on the lower portions of the cans in the coating region is removed prior to entry of the cans into the drying oven.

Abstract: A method of cleaning and renewing sections of pipe is disclosed wherein the flow of fluid through the pipe is shut off and a scrubbing element is inserted into one end of the pipe. The scrubbing element is advanced through the pipe while at the same time ejecting a cleaning fluid to clean the inside of the pipe section. The inner surface of the section is then scraped to remove materials adhering to the inside of the section which were not previously removed. The removed materials are then flushed from the inside of the section and the section is dried. The inside of the section is then painted by passing a painting device through the section which applies a mixture of paint and hardening liquid to the inside of the pipe. A device is also disclosed for coating the inner surface of a pipe which comprises a casing, an air motor and a cowling operatively connected to the motor for scattering coating liquid fed to the device.

Abstract: In can manufacturing apparatus there is provided an overhead magnetic conveyor for transferring cans from a conveyor upon which they are coated to a conveyor upon which the cans are dried. To remove excess coating material which tends to form a bead around the lowermost edge of a can, a bath of coating material solvent is disposed adjacent to the transfer conveyor and has within it an endless belt conveyor to which cans on the overhead conveyor are caused to fall and from which those cans are subsequently returned to an overhead conveyor. The upper, can carrying course of the endless belt conveyor is disposed at a predetermined depth below the surface of solvent within the bath so that excess material accumulating on the lower portions of the cans in the coating region is removed prior to entry of the cans into the drying oven.

Abstract: Apparatus for treating open-mouthed cylindrical containers with a fluid adapted to coat, clean or react chemically with the surface of the containers, comprises a turret fitted with pot assemblies spaced around its periphery, each pot assembly having an internal cavity for reception of a container and a lid for closing the cavity, conduit means for passing fluid through the cavity of each pot assembly, a first pump operable to circulate the fluid in a liquid phase from a reservoir through the conduit means and each cavity so that the liquid flows along the surfaces of a container in the cavity and effects treatment of the surfaces, a second pump operable to circulate the fluid in a gaseous phase from a source thereof through the conduit means and each cavity so as to purge liquid from the cavity, a third pump operable to extract fluid in the gaseous phase from each cavity through the conduit means and thereby reduce the pressure therein so as to effect drying of the container and cavity by vaporization of any

Abstract: In a method of manufacturing a cathode ray tube an electrically conductive coating is provided on an inner surface of the tube. The boundary of said conductive coating in the neck of the tube is sharply defined by wetting the part of the surface of the tube not to be covered with a liquid to remove the conductive material from that part of the surface up to the boundary, and then rinsing the wetted surface to remove any remainder of the conductive material.

Abstract: A lining comprising a resin absorbent tube having on the outside a fluid impermeable membrane everted into the passageway to line same using fluid pressure. The resin absorbent material is soaked in resin by trapping a quantity of resin in the lining before it everts in the passageway, and the resin is cured after the lining is everted into the passageway surface, preferably by a curing means following the everting lining along the inside of the passageway.

Abstract: Process for coating elongated lamp envelope for reflector-type fluorescent lamp in which only one lehring step is used to remove binder from the applied plural coatings, thereby reducing lamp costs and simplifying the coating process. The reflector portion of the coating is formed of mixed titania and phosphor, which permits the reflective material to be removed from the end portions of the coated envelope after the applied reflective material coating and overlying phosphor have been lehred. There is also provided the resulting lamp.

Abstract: A method of forming a porous capillary layer of a metal oxide ceramic material onto a metal oxide ceramic substrate, which comprises covering the surface of the substrate with an aqueous slurry of a powdered mixture comprising the metal oxide of the ceramic substrate, silica and an alkali metal or alkaline-earth metal oxide, the powder mixture having a maximum particle size of about 44 microns, removing excess of slurry, depositing onto the wet surface a layer of granular ceramic material having a particle size of about 250 to about 500 microns, the granular ceramic material being applied in excess relative to the powder of the aqueous slurry to insure that a porous capillary structure will be obtained and causing the slurry to be drawn up between the particles so as to absorb substantially all the slurry, and firing the coated surface at a temperature to effect bonding of the ceramic layer, the powdered constituents of the mixture being proportioned to provide liquid phases at about 200.degree.-300.degree.

Abstract: A method of and apparatus for the immersion treatment of discrete lengths of galvanized conduit to inhibit the formation of "white rust" on the conduit surfaces are disclosed. The conduit is continually conveyed successively through three treatment zones comprising a cleaning bath containing a cleaning agent which removes lubricating oils, greases, dirt and the like from the conduit interior and exterior surfaces, a rinse bath and a coating bath containing a coating agent including chromate ions and a polymeric coating composition. A rotary star wheel-type conveyor is arranged in each treatment zone for transporting the conduits in spaced, substantially parallel relation to each other about an arcuate path through each bath and for inclining the conduit above the bath for a time effective to drain excess liquid from the interior and exterior conduit surfaces. Effective draining of excess liquid prior to entry to another zone minimizes contamination of the various baths and yields a high quality product.

Abstract: This application describes a method of rejuvenating reticulated polyurethane materials, particularly those containing ester-type linkages which have been hydrolyzed after being exposed to moisture containing hydrocarbon fuel and/or highly humid environments. The process consists of treating the polyurethane with cross-linking compounds, such as diisocyanates and polyfunctional epoxy compounds.

Abstract: A method is provided for the continuous manufacture of self-locking internally threaded fasteners having a locking body or patch comprised of resilient thermoplastic material, applied to the fastener in powder form. A support member having a plurality of cavities for receiving said fasteners, and a nozzle associated with each of said cavities, is moved along a path through a plurality of locations wherein the fastener is deposited at a cavity aligned with a respective nozzle at a first location, material is forced through the nozzle onto the fastener at a second location, the fasteners are removed from the respective support at a third location, and the nozzles are purged of material at a fourth location prior to the initiation of a subsequent sequence of operations by the apparatus.

Abstract: In order to prevent breakage of a quartz fluidized bed reactor utilized in the production of silicon, the reactor is cooled as soon as a thin layer of silicon is formed on the reactor walls and then reheated to continue silicon growth. In this manner, the thin layer of silicon shatters and forms a weak foundation for subsequent silicon deposition on the reactor wall when the silicon deposition is continued. Subsequently deposited silicon on the walls continuously peels off without breaking the reactor.

Abstract: A method of and an apparatus for the internal coating of ducts with a synthetic resin, especially long steel pipes or tubes, in which gas-entrained synthetic-resin particles are passed through the tube while the latter is heated progressively by displacing the tube relative to a surrounding induction-heating coil. Thereafter, a gas stream free from particles is used to clear the interior of the tube.