Abstract: A process for treating a composition comprising one or more desired (hydro)fluoroolefins and one or more undesired halogenated ethanes, halogenated methanes or mixtures thereof so as to reduce the concentration of at least one undesired halogenated ethane or halogenated methane, the process comprising contacting the composition with an adsorbent comprising pores having openings which have a size across their largest dimension of about 6 A or less.

Abstract: An apparatus is provided for applying adhesive to a compressor liner having a longitudinal central axis. A first roller has a longitudinal central axis and has an outer circumferential surface which is immersed in adhesive in an adhesive sink. A second roller has a longitudinal central axis and is radially spaced apart from the first roller. The second roller has same outer diameter as the first roller and has an outer circumferential surface which is not immersed in adhesive in the adhesive sink. The first and second rollers cooperate to support the compressor liner for rotation about its longitudinal central axis. A drive mechanism includes a constant speed drive for rotating the first and second rollers about their longitudinal central axes at a constant rotational speed to allow a consistent weight and uniform layer of adhesive to be transferred from the first roller to the compressor liner.

Abstract: A system and method for coating an expandable member of a medical device comprising a support structure to support the expandable member and a dispenser positioned with at least one outlet proximate a surface of an expandable member. A drive assembly establishes relative movement between the at least one outlet and the surface of the expandable member to apply fluid on the surface of the expandable member along a coating path. A guide maintains a substantially fixed distance between the at least one outlet and the surface of the expandable member during relative movement therebetween by displacing the expandable member relative to the at least one outlet.

Abstract: It has now been determined that an internal optical defect can be eliminated by controlling the relative speed mismatch between the resilient roll and the casting roll in a film extrusion coating process. In particular, slowing down the surface speed of the resilient roll relative to the casting roll when coating a biaxially orientated film was found to remove the optical defect. Conversely, speeding up the surface speed of the resilient roll relative to the casting roll when coating a uniaxially orientated film was found to remove the optical defect.

Abstract: Embodiments of the current invention describe a high performance combinatorial method and apparatus for the combinatorial development of coatings by a dip-coating process. The dip-coating process may be used for multiple applications, including forming coatings from varied sol-gel formulations, coating substrates uniformly with particles to combinatorially test particle removal formulations, and the dipping of substrates into texturing formulations to combinatorially develop the texturing formulations.

Abstract: A method for applying a coating to a surface comprising providing a sprayable liquid binding agent formed of first and second components, pumping the first and second components of the binding agent to a first dispensing device (13) and combining the first and second components in the first dispensing device (13) to form the binding agent. The method further comprises spraying the binding agent from the first dispensing device (13) on to a surface to be coated (32), providing a particulate medium, and spraying the particulate medium from a second dispensing device (37) into the liquid spray of binding agent produced by the first dispensing device (13). The binding agent coating the particulate medium and adhering it to the surface (32) to form a coating thereon. An apparatus for performing the method is also described.

Abstract: An arrangement for depositing coating powder on a rotational symmetric body is provided. The arrangement includes a rotation device for rotating the rotational symmetric body around a horizontal axis of rotation, wherein the horizontal axis of rotation coincides with the axis of the rotational symmetry of the body, a nozzle arranged vertically above a surface of the rotational symmetric body for providing the coating powder to the surface and a horizontal barrier at a specified distance defining a coating thickness above the surface, wherein the barrier is arranged next to the nozzle in the direction of a rotational movement of the surface at the nozzle. At this point, the nozzle includes a cross section elongated in one direction parallel to the axis of rotation.

Abstract: A method for self-assembling a plurality of microstructures onto a substrate comprising using a bonding material to make the microstructure assembled onto the substrate by a physical attraction force. The microstructures are self-aligned with the substrate, and further permanently fixed on and electrical connection with the substrate by the solder bumps between the microstructures and the substrate, which is formed by the solder bumps via reflow process. There is no need for the using of the conventional pick-and-place device in the present method. The present method could be applied to light emitting diodes, RFID tags, micro-integrated circuits or other types of microstructures.

Abstract: A narrow fabric includes an elastomeric coating on at least a portion of at least one side of the narrow fabric to provide designed, localized control and performance in the narrow fabric. Optionally, the elastomeric coating may be embedded with flock fibers.

Abstract: A patch application system is provided comprising a powder application booth. The powder application booth comprises a powder block to temporarily house the powder prior to ejection, a nozzle insert to guide the powder onto the screw, a support stand to adjust the powder block to the appropriate position relative to the screw for a desired patch location and size, a powder cup to deliver the powder to the powder block. A programmable logic controller electronically coupled to the micro air-switch valve controls the duration the air-switch valve remains open. The entire process may be automated by including a screw hopper to temporarily store a plurality of screws, a bowl feeder receiving the screws and delivering the screws to a rotating disk, wherein the rotating disk passes the screws through a heating element and presents the heated screws to the powder application booth.

Abstract: Sub-atmospheric pressure chemical vapor deposition is described with a directed reactant flow and a substrate that moves relative to the flow. Thus, using this CVD configuration a relatively high deposition rate can be achieved while obtaining desired levels of coating uniformity. Deposition approaches are described to place one or more inorganic layers onto a release layer, such as a porous, particulate release layer. In some embodiments, the release layer is formed from a dispersion of submicron particles that are coated onto a substrate. The processes described can be effective for the formation of silicon films that can be separated with the use of a release layer into a silicon foil. The silicon foils can be used for the formation of a range of semiconductor based devices, such as display circuits or solar cells.

Abstract: An apparatus and method are described for deposition of materials such as particulate materials onto a surface. The methods employ the use of shockwaves or compression waves to project the particulate material onto the surface as desired. This allows for the preparation of solid objects or coated surfaces that exhibit, for example, superior density and uniformity.

Abstract: The present inventions pertain to a method of applying a solid protective coating to articles, to a system capable of depositing a solid film layer on articles, and to hermetically sealed articles. In particular, films are deposited on fused quartz substrates, optical fibers, and other items requiring a hermetic seal by a single or multiple beams laser-induced chemical vapor deposition [LCVD]. According to the present inventions, the protective layer can be deposited on the articles to be hermetically sealed in an open environment at atmospheric pressure and ambient temperature whereby the coating process may occur outside the confines of an enclosure. A coaxial precursor and non-reactive laminar gas jet configuration insulates the deposition area from oxygen and other aerial impurities.

Abstract: The present inventions pertain to a method of applying a solid protective coating to articles, to a system capable of depositing a solid film layer on articles, and to hermetically sealed articles. In particular, films are deposited on fused quartz substrates, optical fibers, and other items requiring a hermetic seal by a single or multiple beams laser-induced chemical vapor deposition [LCVD]. According to the present inventions, the protective layer can be deposited on the articles to be hermetically sealed in an open environment at atmospheric pressure and ambient temperature whereby the coating process may occur outside the confines of an enclosure. A coaxial precursor and non-reactive laminar gas jet configuration insulates the deposition area from oxygen and other aerial impurities.

Abstract: The present invention provides a finely-divided powder spray apparatus having a spray nozzle pipe for discharging finely-divided powders from the tip together with a gas stream, which is disposed at a prescribed distance from the member to be sprayed and inclined in a prescribed direction to the member; and a moving-speed control means which controls the moving-speed of the tip of the spray nozzle pipe in accordance with the quadratic function, which indicates the reduction rate of the density of the deposited finely-divided powders based on the distance between a peak point of the density of the finely-divided powders deposited on the member to be sprayed in a trial spray and a spray point at which an extension from the spray nozzle pipe intersects with the member to be sprayed.

Abstract: A wood adhesive formulation containing furfuryl alcohol, lignin, maleic anhydride, and iron and zinc catalysts.

Abstract: Methods and apparatuses for assembling a structure onto a substrate. A method according to one aspect of the invention includes dispensing a slurry onto a substrate wherein the slurry includes a first plurality of elements, each of which is designed to mate with a receptor region on said substrate and each of which comprises a functional element, and wherein the slurry also includes a second plurality of elements which are not designed to mate with receptor regions on the substrate. Typically, these second plurality of elements help movement of the first plurality of elements. A method according to another aspect of the invention includes dispensing in a flow having a first direction a slurry onto a substrate, wherein the slurry includes a fluid and a plurality of elements, each of which is designed to mate with a receptor region on the substrate and each of which includes a functional element, and vibrating substrate in a second direction which is substantially perpendicular to the first direction.

Abstract: Methods of forming mask patterns and methods of forming field emitter tip masks are described. In one embodiment a first surface is provided over which a mask pattern is to be formed. A mixture comprising mask particles is applied to a second surface comprising material joined with the first layer. The mixture, as applied, leaves an undesirable distribution of mask particles over the first surface. After application of the mixture to the second surface, the mask particles are laterally distributed over the first surface, into a desirable distribution by placing a particle-dispersing structure directly into the mixture on the second surface and moving the particle-dispersing structure laterally through the mixture on the second surface. In another embodiment, a mixture is formed on the substrate's second surface and includes a liquid component and a plurality of solid mask-forming components.

Abstract: A reflector plate is provided for scattering radiant heat energy in a semiconductor processing reactor chamber to achieve uniform temperature across a substrate to be processed. The surface is characterized by a plurality of adjoining depressions with substantially no planar sections among the depressions. The width to depth ratio for the depressions averages over 3:1. Crests separating the depressions define an angle of greater than about 60°, thus providing a relatively smooth texture for the reflecting surface. The reflecting surface is thus easy to clean. A method of manufacturing the reflector plate comprises removing material from a planar metal surface by ball-end milling. The depth of each depression and degree of overlap with adjacent depressions can randomly vary within selected ranges. A highly specular finish is then provided on the stippled surface by gold electroplating.

Abstract: An object of the present invention is to provide a phosphor capable of improving the light emitting efficiency of a plasma display panel and restraining the deterioration of luminance and a change in chromaticity with the passage of time, and also provide a manufacturing method of this phosphor and the plasma display panel using this phosphor. To achieve this object, the surfaces of phosphor particles for a plasma display panel are covered with a metallic oxide generated by the hydrolysis of a metallic alkoxide. A manufacturing method of the phosphor particles for the plasma display panel is characterized in that the metallic alkoxide is attached to the phosphor particle surfaces and is burned. In this manufacturing method, the phosphor particle surfaces are covered with a close film of the metallic oxide. The plasma display panel uses the phosphor particles having surfaces covered with the metallic oxide.

Abstract: A porous, tubular synthetic prosthesis, prosthesis precursor, and methods of producing the same are provided. Specifically the method involves co-spraying both a water soluble and water insoluble fibrous component onto a mold to form the prosthesis precursor. The water soluble fibrous component may then be at least partially removed so as to provide a porous, tubular synthetic prosthesis.

Abstract: Method and apparatus for the selective heat-induced deposition of solid material from gas-phase or super-critical fluids to produce three-dimensional parts by pyrolysis of the fluids. The apparatus involves computer/feedback control of the evolving shape by direct monitoring of the volumetric deposition rate or growth profile, and modifying light beam focal properties, the position and orientation of the deposit relative to the beam foci, and/or the pressure and flow of reactants to the growth zone. The precursor gases may be pressurized and heated to the critical point or beyond, becoming super-critical fluids, without condensation. Growth occurs by diffusion of reactants to the growth zone through a boundary layer over the deposit. One method of growth includes directing a large-area impinging jet of precursor fluid(s) onto a deposit interface, while limiting the reaction zone to a smaller area determined solely by size of the heated zone (through use of a radiant beam, e.g.).

Abstract: An object, such as a container cover, is lined on a predefined area of the object by depositing powder on the predefined area. The lining material is formed into a non-spherical powder having a resting angle of 40 degrees or greater. The powder is deposited by fluidizing the powder in a feeder using vibration and conveying the powder through a nozzle to the predefined area. The powder layer deposited on the object is pressed with a molding element to form a lining layer having the predefined shape. The lining thus formed has a predefined thickness distribution and shape with good tightening and sealing properties and corrosion resistance. In addition, no environmentally unsafe processes are required for the precise deposition of powder.

Abstract: A method and apparatus for coating the surface of a substrate suspends a coating material above the surface of the substrate and irradiates both the coating material and the underlying surface of the substrate. By irradiating both the coating material and the underlying surface of the substrate, a first portion of the coating material is melted to form an at least partially molten droplet of coating material. In addition, at least a second portion of the coating material is ablated to thereby create an ablation plume which propels the at least partially molten droplet of coating material toward the substrate. In addition, the portion of the substrate toward which the at least partially molten droplet of coating material is propelled is simultaneously heated, such that the at least partially molten droplet coating material adheres to the heated substrate, thereby coating the surface of the substrate.

Abstract: A method for forming a coating on at least one part to be coated has the steps of agitating a mixture including (i) the at least one part to be coated, (ii) a material that forms an adhesive layer on the at least one part to be coated, (iii) impact media, and (iv) multiple compositions of powder material; and fusing at least one of the multiple compositions of powder material.

Abstract: An electric field effect light emitting device comprises a light emitting layer consisting of a diamond-like carbon film containing oxygen.

Abstract: An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut. In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation.

Abstract: A process for providing circuit lines on a substrate having a non-planar surface is provided. The process includes applying a layer of photoresist material to the substrate, selectively screen printing on non-planar areas of the substrate a screen-printable coating, photoprocessing the layer of photoresist material, and providing electrical conductive pattern on the substrate.

Abstract: A method of making a filter media for use in a filter employed to separate water and particulate material from a liquid to be purified, such as a hydrocarbon fuel. The method includes the steps of providing a fibrous mat of material adapted to mechanically separate particulate material from a liquid to be purified, applying starch-polyacrylonitrile graft polymer in dry, granular form to the mat, and fixing the co-polymer to the mat by spraying the mat with a volatile solvent containing a small amount of water.

Abstract: A process for producing a resin foam by using an aqueous medium, which comprises(a) treating a resin compound with said aqueous medium to cause the aqueous medium to adhere to and be held by the resin compound, said resin compound being composed of porous agglomerated particles resulting from partial melt-adhesion of thermoplastic resin particles coated with a fine hydrophilic solid powder which does not substantially melt at the melting temperature of the resin particles, said solid powder being embedded in the resin particles but partly exposed at their surfaces,(b) melt-kneading the resin compound treated with the aqueous medium under such an elevated pressure that evaporation of the aqueous medium is substantially inhibited, and(c) thereafter releasing the kneaded resin composition from the pressurized state to foam it; and a thermoplastic resin compound used for the aforesaid process.

Abstract: Method of dedusting granules of agricultural micronutrient metal sulfates by coating the granules with a monomeric liquid, which is catalytically polymerizable by the metal sulfates, and contacting the dust particles with the coated granules while the monomeric liquid is polymerized through an adhesive stage to a hard dry coating which occludes substantially all of the dust particles on the surface of the granules. Aqueous methylol and methylene ureas, partially condensed urea-formaldehyde solutions containing some free urea, and cane molasses are effective monomeric liquids for dedusting sulfates, oxysulfates, and mixtures of micronutrient metals, including: zinc, manganese, iron, copper, and lead. The dedusting method is effective in improving the condition of the granules when a small amount of conditioner such as clay is added as a dust. The conditioner occluded on the surface of the granule provides an effective base for coloring the granules with dye solutions.

Abstract: Although the method and apparatus of the present invention can be utilized to apply either a uniform or a nonuniform covering of material over many different workpieces, the apparatus (20) is advantageously utilized to apply a thermal barrier covering (64) to an airfoil (22) which is used in a turbine engine. The airfoil is held by a gripper assembly (86) while a spray gun (24) is effective to apply the covering over the airfoil. When a portion of the covering has been applied, a sensor (28) is utilized to detect the thickness of the covering. A control apparatus (32) compares the thickness of the covering of material which has been applied with the desired thickness and is subsequently effective to regulate the operation of the spray gun to adaptively apply a covering of a desired thickness with an accuracy of at least plus or minus 0.0015 inches (1.5 mils) despite unanticipated process variations.

Abstract: The production of a continuously advancing steel strip with a protective metal coating on only one face thereof by electrolytically depositing a thin primary coating of metal from an ionized metal salt bath onto said face, which is followed by a cleansing and drying thereof. Thereafter a predetermined quantity of coating metal in minute particulate form is deposited uniformly onto the coated face and is heated in a non-oxidizing atmosphere to fuse the particulate metal particles onto the thin primary coating followed by the sudden cooling thereof, while preventing the oxidation of the uncoated face during the fusing and cooling-off stages.

Abstract: A filled, low or medium density polyethylene or other polyolefin composition is used to form a polymer coating on an internal cylindrical metal surface such as, for example, the interior surface of a pipe.

Abstract: A method of powder coating the inside of tubular goods, such as oil field pipe and the like, by connecting one end of the pipe to a means for producing a flow of compressible gases therethrough. The other end of the pipe is open to atmospheric pressure. A valve means is connected upstream of the pipe between the inlet end thereof and a container for holding a single charge of plastic powder. The charge of powdered plastic is isolated upstream of the pipe inlet. The charge is of sufficient size to coat the entire inside peripheral wall surface of the pipe with a substantial uniform coating of plastic.

Abstract: Toner particles of an intimate mixture of 25 to 75% by weight of substantially colorless, inert, nonelectroscopic spheroidal-shape polymer particles of size distribution in the range of greater than 5 to less than 60 .mu.m, not more than 15% of the polymer particles being less than 10 .mu.m or greater than 50 .mu.m equivalent spherical diameter, and 75 to 25% by weight of colorant particles having a size distribution within the range of 0.2 to 30 .mu.m and not more than 50% of the colorant particles being less than 1 .mu.m particle size. Ionic copolymer spheroidal particles are preferred. The toner particles are useful for color development of tacky areas by depositing and distributing the toner particles by means of a pad, including an applicator apparatus comprising a housing for toner, a free moving weight in the housing for agitating the toner, means to release toner from the housing, and at least two hinged pads mounted on the housing.

Abstract: The invention contemplates a method and means for making a dryer or the like roll having a ferrous metal surface provided with a surface coating of a hardfacing alloy, the ferrous metal surface having a thermal conductivity relative to silver taken as 1 cal/cm.sup.2 /cm/.degree.C./sec of at least about 0.06 the hardfacing alloy being a hardfacing heat, corrosion and wear resistant iron-group metal-base alloy mechanically and metallurgically bonded to said ferrous metal surface which is preferably made of cast iron, the hardfacing alloy coating having a thickness ranging from about 0.01 to 0.15 inch, the thermal conductivity of said coating being at least 0.05.

Abstract: A method of multiple powder coating wherein articles to be coated are fed to a conveyor which comprises a pair of Geneva gears secured to both ends of a rotatable shaft. The Geneva gears have a plurality of channels around the periphery thereof for holding the articles. The gears are rotated intermittently at an interval of one channel and an article to be coated is fed to a pair of channels at every Y intermittent rotations, where Y is the number of coatings to be applied. The article is coated once in each cycle of rotation of the Geneva gears and is removed following X times Y intermittent rotations, where X is the number of channels around the periphery of each gear. X is odd when Y is even and X/Y is a decimal when Y is odd.

Abstract: Stiffening material is applied to the end of an elongate battery electrode sheath by spreading the material onto a disc in the form of an apertured circle. The circle is continually rotated in a horizontal plane. The battery sheaths are oriented vertically and are displaced so that the lower end of each sheath is passed into the material at one location thereof such that the material approaches one side of the sheath. The sheath is then passed into the material at another location thereof spaced from the first location so that material approaches another side of the sheath.

Abstract: Improved process for applying locking patches of resilient resin to internally threaded articles such as nuts having openings at both ends of the threaded portions in which process there is used apparatus including, a support and treating member, preferably a rotatable, circular table with edge notches complementary to a portion of the exterior of a threaded article to be treated, which receives a succession of threaded articles heated to a temperature above the melting point of the resin to be applied and moves the articles along a path for treatment with the axes of the threaded articles in an up and down position and with the openings at the upper and lower ends of the threaded portions substantially uncovered, conduits on the support and treating member are associated with each threaded article to direct particles of heat fusible resin upwardly through the opening at the lower end of the article against a portion of the threaded surface of the article to form a first deposit of resin on an area of the thr

Abstract: A workpiece such as an electronic component, comprising a body and leads that project in one direction from the body, has its body coated by immersing it in a fluidized bed while the workpiece is vibrated. Immersion depth is such that the uppermost surface of the body is at or just slightly below the top surface of the fluidized bed. Vibration of the workpiece during immersion ensures a uniform thickness coating all over the body and prevents "pants legs" on the leads.

Abstract: Small workpieces to be coated with plastic material are preheated and dropped onto a fluidized bed of plastic powder subjected to compound vibratory motion which causes the powder and the workpieces to move along a helical ramp onto a screen overlying the point of entry, with some of the particles fusing onto the workpiece surfaces to form a film. The remainder of the powder, on reaching the screen, drops back onto the bed as the coated workpieces move on to a receptacle. Fresh workpieces are deposited on the bed through one or more chutes traversing the screen; to prevent the rise of any particles through the chutes, a downward airflow is created therein.

Abstract: A preheated workpiece having a surface with substantially arcuate curvature is supported by rotatable supporting means which has limited contact with said surface. Heat fusible plastic material in finely divided solid form is propelled against all parts of the surface of the workpiece, to be melted by its heat and fuse into an overall coating. During such coating, and thereafter until the material solidifies to substantial hardness, the supporting means is rotated, imparting rotation to the workpiece by its rolling contact therewith, and is cooled to maintain its temperature below the melting point of the material.

Abstract: A workpiece, such as the body of a vehicle is advanced in suspended condition in one of two transversely spaced paths until it is opposite a treating station which is located between and spaced from both of the paths. There are several such treating stations provided, spaced along the paths, and they are each capable of affording a different treating action. The workpiece is placed opposite the desired work treating station and is then shifted transversely of the paths to the treating station where it undergoes treatment, to be subsequently shifted to the other of the paths and along the same.BACKGROUND OF THE INVENTIONThe present invention relates generally to the treating of workpieces, and more particularly to a method of and an apparatus for treating of workpieces. Still more particularly, the invention relates to a method of treating a vehicle body or the like by providing it with a surface coating, and to an apparatus for carrying out the method.

Abstract: A method of powder coating the inside of tubular goods, such as oil field pipe and the like, by connecting one end of the pipe to a means for producing a flow of compressible gases therethrough. The other end of the pipe is open to atmospheric pressure. A valve means is connected upstream of the pipe between the inlet end thereof and a container for holding a single charge of plastic powder. The charge of powdered plastic is isolated upstream of the pipe inlet. The charge is of sufficient size to coat the entire inside peripheral wall surface of the pipe with a substantial uniform coating of plastic.