Abstract: A prosthesis having an apertured structure is located in a chamber (11) which is taken to sub-atmospheric pressure. Once sub-atmospheric pressure has been reached, a liquid, optionally containing pharmacological agents, is introduced into the chamber. Drawn by the sub-atmospheric pressure, the liquid saturates the apertured structure of the prosthesis. In this way, the invention eliminates the risk of air being trapped in the apertured structure that could give rise to the formation of blood clots after implantation of the prosthesis. The liquid can contain drugs that penetrate the prosthesis, performing their therapeutic action locally and over time after implantation.

Abstract: A method of coating an inner face of a weapon barrel with a coating material includes the following steps: introducing the coating material as a component in sheet or foil form into the weapon barrel; positioning the component in the weapon barrel such that a first face of the component is oriented toward the inner face of the barrel and a second face of the component is oriented away from the inner face of the barrel; maintaining an annular clearance between the inner face of the barrel and the component; providing the second face of the component with an explosive; and detonating the explosive for hurling the coating material of the component against the inner face of the barrel for effecting a cold welding between the coating material and the inner face of the barrel.

Abstract: The invention relates to a component having a substrate and a ceramic heat-insulating layer which is arranged thereon. This heat-insulating layer has a columnar structure having ceramic stems which are essentially oriented mainly normal to the surface of the substrate and have a respective stem diameter of less than 2.5 &mgr;m. The invention also relates to a coating apparatus for producing a heat-insulating layer on a substrate and to a method of coating a substrate in the manner of a reactive gas-flow sputtering method.

Abstract: A method for coating conductive metal onto a electrode comprises a step of adhering a tape onto a first side of a tooling plate, a step of shaking electrodes to be fell into respective guiding holes of the tooling plate and to be held at first ends of the electrodes, a step of pre-pressing second ends of the electrodes in the guiding holes of the tooling plate, a step of holding the tooling plate with a vacuum holder to dip the second ends of the electrodes down into a liquid conductive metal trough, a step of re-dipping the tooling plate into the liquid conductive metal trough for modifying shapes of the first ends of the electrodes, a step of baking the second ends of the electrodes, a step of adhering another tape onto a second side of the tooling plate and removing the tape at the first ends of the electrodes, a step of pre-pressing the first ends of the electrodes, a step of holding the tooling plate with the vacuum holder to dip the first ends of the electrodes into the liquid conductive metal trough, a

Abstract: The invention concerns a diaphragm chlor-alkali electrolysis cell comprising a cover, a conductive base for supporting the anodes and a cathode in the form of a box provided with internal wall, external wall and tubular fingers made of a mesh or perforated sheet covered with a porous diaphragm. One or more copper sheets for electric current distribution are fixed to the cathode external walls. The connection between the copper sheets and the cathode external walls is made by means of bolts with the interposition of a conductive and deformable element provided with residual elasticity under compression. The weldings for the assembling of the cathode walls are free from internal stresses.

Abstract: A process for producing a homogeneous oxide layer on metal components includes uniformly heating the components, in all their regions, in a vacuum chamber and, after a predetermined temperature has been reached, exposing the components to an oxygen-containing gas for a predetermined period and at a predetermined pressure. The metal components are coated with MCrAlY or PtAl. The preheating temperature is between 750 and 850° C., preferably, approximately 800° C. Preferably, the thickness of the homogeneous oxide layer is between 0.01 and 5 &mgr;m. The heating is preferably by electron radiation. The predetermined period is approximately 10 minutes, and the predetermined pressure is between 1×10−3 and 8×10−2 mbar.

Abstract: The invention relates to a method for corrosion-resistant coating of metal substrates by means of plasma polymerization, wherein the substrate is subjected to mechanical, chemical and/or electrochemical smoothing in a pre-treatment step and is subsequently exposed to a plasma at a temperature of less than 200° C. and at a pressure of 10−5 bis 100 mbars, whereby in a first step the surface is activated in a reducing plasma and in a second step the polymer is separated from a plasma containing at least one hydrocarbon or silico-organic compound which can be vaporized in plasma conditions, optionally contains oxygen, nitrogen or sulphur and can contain fluorine.

Abstract: The present invention is a process for modifying the properties of a porous freeform fabricated part by increasing its density and reducing its porosity. The porosity and density of a freeform fabricated part are altered by packing the pores in a freeform part with an infiltrant, such as a preceramic polymer. The process includes drawing a vacuum on or pressurizing the freeform part while it is in an infiltrant bath, thereby forcing the infiltrant into the pores of the freeform part. After removing the densified freeform part from the infiltrant bath, the freeform part is subjected to a treating process, such that the infiltrant within the pores transforms to a ceramic or ceramic-containing phase to thereby increasing the density of the freeform part.

Abstract: An improved process for applying aluminide coatings to superalloy components used in gas turbine applications resulting in a more uniform coating with less hazardous waste by-products. The process involves the steps of placing the superalloy components into a retort with an aluminum-containing source, evacuating air from the retort and introducing an inert gas, heating the retort to a preselected temperature, while maintaining the preselected temperature purging the inert gas from the retort by introducing hydrogen gas, while maintaining the preselected temperature, pulsing, by reducing the retort pressure to a preselected pressure below atmospheric pressure, followed by introducing a halide-containing gas to react with the aluminum-containing source to create an aluminum-rich vapor that deposits aluminum on the components, then reintroducing hydrogen gas into the retort to purge the gases within the retort; and cooling the retort.

Abstract: Red decorations on substrates which can undergo decorative baking, such as glass, porcelain, ceramic and metal, can be produced using nanoporous aluminium oxide membranes according to the invention, the nanopores of which contain ligand-stabilized gold clusters. The membrane is applied to the substrate followed by baking, resulting in formation of the red color. Alternatively, the membrane can be converted into a red membrane by thermolysis, after which the membrane is employed for production of the decoration. The membranes according to the invention can be obtained by bringing a nanoporous Al2O3 membrane into contact with a solution of a ligand-stabilized gold cluster, in particular one of the formula Au55L12X6, wherein L is a phosphane ligand and X is an anion.

Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles without any substantial loss of fluorocarbon solvent used in the coating composition. Articles are coated on a surface thereof with a hydrophobic coating reactant or reaction product which forms a coating having an exposed surface populated with 30% by area or more terminal trifluoromethyl groups.

Abstract: Method and apparatus for applying a protective coating to the surfaces of air vents in a vented brake rotor wherein the method includes the steps of rotating the rotor, directing coating material along with a stream of air toward the inlets of the vents to flood the vents with coating material to coat the surfaces, applying a suction to the outlets of the vents to remove and recover the excess material, and curing the coating. The apparatus includes fixtures for mounting the rotors that are driven to rotate the rotors during the coating operation, and for automatic operation a conveyer for advancing the rotors through a vent coating station, an exterior coating station for coating exterior rotor surfaces, and a curing station.

Abstract: This invention covers a cathodic element free from asbestos fibres that can be obtained by deposition after filtration through a porous medium of an aqueous suspension comprising electrically conductive fibres, at least one cationic polymer, at least one electocatalytic agent, at least one pore-forming agent and at least one binder selected from among the fluoropolymers. The invention also covers a method for preparing such a cathodic element.

Abstract: The invention concerns a diaphragm chlor-alkali electrolysis cell comprising a cover, a conductive base for supporting the anodes and a cathode in the form of a box provided with internal wall, external wall and tubular fingers made of a mesh or perforated sheet covered with a porous diaphragm. One or more copper sheets for electric current distribution are fixed to the cathode external walls. The connection between the copper sheets and the cathode external walls is made by means of bolts with the interposition of a conductive and deformable element provided with residual elasticity under compression. The weldings for the assembling of the cathode walls are free from internal stresses.

Abstract: A method of forming a liquid-permeable asbestos-free diaphragm on a cathode structure is described. The method comprises forming a liquid-permeable diaphragm base mat comprising fibrous synthetic polymeric material, e.g., polytetrafluoroethylene, on a cathode structure, e.g., a foraminous cathode; drawing a liquid slurry comprising an aqueous medium containing a wetting amount of surfactant and water-insoluble inorganic particulate material through the base mat, thereby to deposit said inorganic particulate material on and within the pre-formed base mat; and drying the resultant diaphragm at temperatures less than the temperature at which decomposition by-products of the surfactant are formed. The liquid slurry is substantially free of alkali metal halide and alkali metal hydroxide; and the inorganic particulate material comprises at least one oxide or silicate of a valve metal, e.g., zirconium oxide, having a median diameter of 0.

Abstract: A method for preventing radioactive contamination of porous surfaces comprising providing an apparatus for handling radioactive material comprising a porous surface; exposing the porous surface to a vacuum; depositing a flowable precursor material onto the porous surface, wherein the porous surface comprises pores and the vacuum is effective to substantially fill the pores with the flowable precursor material; subjecting the flowable precursor material to energy sufficient to convert the flowable precursor material to an effective sealant film comprising amorphous carbon. In a preferred embodiment, the porous surface is an anodized aluminum surface.

Abstract: An insulated metallic strip suitable for use in the coils of power transformers and method of producing the same. Following the extrusion of a flat metallic strip of conductive material for winding into a magnet coil, the flat strip having a predetermined thickness and first and second sides bounded by a pair of fully rounded edges, the method of insulating the strip of conductive material by supporting the flat strip in a level state at a predetermined temperature in a vacuum chamber and while in the vacuum chamber applying a liquid coating of resin to the entire first side of the strip and the pair of rounded edges and extending onto the second side of the strip from each of the edges a distance at least as great as about 0.25" to prevent turn to turn discharge.

Abstract: In general terms, the method of the present invention is one for providing an anodic coating to a member having a metal surface being subject to oxidation. In broadest terms, the method comprises the steps of: (a) obtaining a member having a ferrous metal surface (i.e. the term "ferrous" intended as meaning containing iron without regard to oxidation state), the metal surface having one or more layer(s) of oxidized metal; (b) removing the layer(s) of oxidized metal from the ferrous metal surface; and (c) depositing one or more layer(s) of an emeraldine base polyaniline polymer onto the ferrous metal surface.

Abstract: To provide heat-resistant alloy members that maintain the resistance to corrosion at high temperature of the chromized layer formed on Ni- or Co-base heat-resistant alloys and which yet are improved in various mechanical properties. The improved Ni- or Co-base heat-resistant alloy member having a chromized layer that is characterized by having a chromium concentration of 25-80% and a thickness of 10-100 .mu.m. This member is produced by controlling both the vapor pressure of a chromium halide being used in chromization and the temperature therefor in such a way that the chromized layer being formed is adjusted to have a chromium concentration and a thickness within the ranges specified above.

Abstract: A method and apparatus for producing AlN powder employing a vacuum chamber with a nozzle thereon having a hollow center crucible of graphite with a small feed hole in the bottom thereof. A device is provided for heating and melting aluminum in the crucible. A plasma gun connected to a source of argon and nitrogen is ignited below said feed hole, and melted aluminum moves into the plume of said plasma gun. The melted aluminum is atomized in the plume, and the droplets of aluminum are vaporized and react to the nitrogen in the plume, to create AlN which is collected in a collecting chamber.

Abstract: An insulated metallic strip suitable for use in the coils of power transformers and method of producing the same. Following the extrusion of a flat metallic strip of conductive material for winding into a magnet coil, the flat strip having a predetermined thickness and first and second sides bounded by a pair of fully rounded edges, the method of insulating the strip of conductive material by supporting the flat strip in a level state at a predetermined temperature in a vacuum chamber and while in the vacuum chamber applying a liquid coating of resin to the entire first side of the strip and the pair of rounded edges and extending onto the second side of the strip from each of the edges a distance at least as great as about 0.25" to prevent turn to turn discharge.

Abstract: A method and a pre-form for strengthening a substrate structural member. Layers are applied to a surface of a substrate where the layers include dry fibre reinforcement materials. A reduced pressure is then applied to the layers and a curable resin is introduced to the layers such that the resin is drawn therethrough until the interstices therein are substantially filled with the resin. The resin is then cured. The layers are preferably woven fabric and may include resin distribution layers of relatively low weave density and high permeability and reinforcement layers of higher weave density and lower permeability. The layers may be provided as a pre-form.

Abstract: For the application of a coating material to an object, the coating material is conveyed along a conduit by means of an entraining gas. For good conveying conditions, the entraining gas is made to travel at high velocity. In order that the velocity of the coating material discharged at the coating zone is not excessive, a partial vacuum source extracts part of the entraining gas from a point upstream of the outlet, via a separate conduit. This results both in an improved rate of deposition of the coating material on the object to be coated and in a particularly uniform coating.

Abstract: Methods of lining the internal surface of a pipe, include first inserting two lining pigs into the pipe and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe, and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. The methods use improved liquid blocking pigs for use in pipe lining treatment, each of such pigs includes a spherical body made of a soft resilient material and at least one flexible liquid barrier diaphragm interposed in the spherical body.

Abstract: The present invention provides a method for producing a a high-performance black matrix taking the palce of a Cr film black matrix and a high-performance color display thin film, which is comprises steps of vaporizing one or more organic pigments or vaporizing and exciting a metal or an alloy together with said organic pigments, and forming a thin film or a mixed composite thin film onto a substrate by the plasma exciting deposition.

Abstract: A method for blending fluorine into a polyimide free of fluorine comprises the steps of generating fluorine radicals in a fluorine based gas, removing charge particles from the gas to leave the fluorine radicals in the gas, and exposing a polyimide free of fluorine to an irradiation of the fluorine radicals so that the irradiated fluorine radicals penetrate into the polyimide, thereby avoiding reaction of the charge particles with a surface of the polyimide.

Abstract: A process for the preparation of electroluminecent polymers comprising: polymerizing a first monomer of the formula X-cg-X with a second monomer of the formula Y-USG-Y by coupling in the presence of a metal containing reagent to form a soluble precursor polymer product of the formula -?-cg-USG-!.sub.n - wherein X and Y represent substituents are capable of undergoing coupling polymerization reactions, cg represents a convertible group, USG represents an unsaturated group; and n represents the number of first and second monomers contiguously coupled, and is an integer from 5 to about 10,000; and thermally converting the precursor polymer product to form a converted polymeric product of the formula -?-cg-USG-!.sub.(1-a) -?-CG-USG-!.sub.a - wherein a is the degree of conversion, and CG is a converted group arising from conversion of the convertible group cg.

Abstract: Various types of articles having various deposition coatings applied using a gas vapor deposition process are provided. A system evacuates gases from the article or a deposition chamber prior to depositing a coating. The coating may be applied throughout the inside of an article or may be selectively applied to a portion of the article. The article may be moved relative to the gas jet or the gas may be moved jet relative to the article. Stencils may be used to pattern the coating on the surface of the article. The articles are coated in a pressure of approximately 5 millitorr. Articles may be cylindrically shaped, leadframes on a reel, substrates, or printed circuit boards.

Abstract: There are provided methods of lining the internal surface of a pipe, which includes first inserting two lining pigs into the pipe and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe, and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. There are also provided improved liquid blocking pigs for use in pipe lining treatment, each of such pigs comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.

Abstract: A Mg source 3 is received in a vessel 1 having an opening 8, and the vessel 1 is heated at 670.degree. C. or higher to effuse Mg vapor through the opening 8. Since the vessel 1 is filled with Mg vapor, Mg is evaporated from molten state under stable condition without fluctuations in evaporation speed. The Mg vapor is effectively consumed for vapor deposition. A reflector plate may be provided at the outlet of the opening 8, or a duct for introducing Mg vapor from the vessel to the surface of a substrate sheet may be provided. In order to evaporate Mg from stabilized molten state, operational conditions are preferably determined so as to satisfy the relationships of W.sub.1 /W.sub.2 <0.6.times.(P.sub.Mg /V.sup.3) and W.sub.1 /W.sub.2 <0.04.times.P.sub.Mg, wherein W.sub.1 represents the area (mm.sup.2) of the opening 8, W.sub.2 represents the evaporation surface area (mm.sup.2) of the Mg source 3, P.sub.Mg represents Mg vapor pressure (torr.) and V represents the degree of vacuum.

Abstract: In a method for producing corrosion and wear resistant coatings on iron material, in which subsurface areas are enriched with nitrogen, carbon, and oxygen, the iron material is nitrocarburized for forming a connective coating of carbonitride. The surface of the iron material is activated with a plasma-supported vacuum process. The ion material is subsequently oxidized to form a continuous oxide coating.

Abstract: A method for producing at least a polymer surface layer on at least part of the inner surface of a hollow article that is at least partially of plastic, comprising coating said at least part of the inner surface of the hollow article by establishing a low pressure gas atmosphere within the hollow article, formin a polymerizable plasma within the article by excitation of the gas atmospher within the article by high-frequency electromagnetic energy, and allowing polymerization of the gas atmosphere to take place, whereby a polymerized coating is applied to said part of the inner surface, the gas atmospherre that forms the plasma containing a component that predominantly forms chains at sufficient speed and can be polymerized under the particular plasma conditions, and a component that forms predominantly branching or cross-linking points and can be polymerized under the particular plasma conditions.

Abstract: There are provided methods of lining the internal surface of a pipe, which includes first inserting two lining pigs into the pipe and then introducing a batch of resin thereinto, or inserting one lining pig between two batches of a resin, or first inserting a lining pig and then inserting two batches of a resin with another lining pig therebetween, or first introducing a lining pig made of a soft material capable of deforming so as to pass through a narrow-passing section and then introducing a batch of a resin into the pipe, causing the resin to move forward until the front end of the resin reaches an inner end of the pipe, and sucking the resin back from the inner end so as to line the internal surface of the pipe with the resin. There are also provided improved liquid blocking pigs for use in pipe lining treatment, each of such pigs comprises a spherical body made of a soft resilient material and a least one flexible liquid barrier diaphragm interposed in the spherical body.

Abstract: An impregnation sealant composition comprises a low viscosity vulcanizable silicone. The silicone is selected from the group consisting of (i) a heat curable silicone composition formed as the reaction product in the presence of a platinum catalyst of a first silicon containing material containing at least two SiH functionalities and having a molecular weight less than 2000 with a second silicon containing material containing at least two ethylenically unsaturated functionalities and having a molecular weight less than 2000, said silicone composition having a ratio of SiH to Si-ethylenically unsaturated functionalities of from about 0.8 to about 1.2; and (ii) a room temperature vulcanizing silicone composition formed as the reaction product of a silicone fluid containing at least two SiOH functionalities and having a molecular weight less than 2000 with a silane cross-linker of formula (I):R.sub.n Si(X).sub.

Abstract: Process for the preparation of an asbestos-free microporous electroconductive substrate. The process includes (a) providing an aqueous suspension of a mixture of carbon or graphite fibers, polytetrafluoroethylene fibers, inert mineral fibers, at least one fluorinated polymer, a silica porogen, and, optionally, at least one thickening agent; (b) depositing a coating onto a porous support by programmedly vacuum filtering said suspension therethrough, the coating comprising a liquid medium; (c) removing the liquid medium from said coating and then drying same; (d) sintering the coating thus formed; and (e) extracting the silica porogen therefrom. A substrate including intimate admixture of carbon or graphite fibers, polytetrafluoroethylene fibers and inert mineral fibers, and optionally, at least one thickening agent, consolidated by a binding amount of at least one fluorinated polymer is formed. The substrate produced is well suited for the electrolysis of solutions of, e.g., alkali metal halides.

Abstract: A thermal barrier coating for superalloy turbine engine vanes and blades that are exposed to high temperature gas is disclosed. The coating includes a ceramic layer applied to an aluminide or MCrAlY bond coat by electron beam physical vapor deposition. The ceramic layer has a first portion having unstabilized porosity, a second portion, overlying the first portion, with stabilized porosity, and an outer portion wherein the pores are coated with a noble metal. The stabilized porosity portion along with the noble metal coating reduce the thermal conductivity of the ceramic layer. Stabilizing the porosity renders it more resistant to sintering densification at high temperatures.

Abstract: A process for coating metal substrates including cleaning, degreasing and activating the substrate wherein a strongly adhering bonding agent layer is deposited on the substrate. The bonding agent layer comprises a thickness of aluminum. The bonding agent layer is deposited at a temperature not exceeding 300.degree. C.

Abstract: An iron-based heat-generating material excellent in oxidation resistance at an elevated temperature which comprises an iron-based alloy capable of generating heat by passing electricity therethrough and a coating of aluminum and oxygen formed on the surface of the alloy, the amount of the oxygen in the coating is less than the stoichiometric amount of oxygen in Al.sub.2 O.sub.3. The material can be prepared by vacuum evaporation of Al onto the surface of the iron-based alloy wherein an oxygen partial pressure in a vacuum gaseous atmosphere for the vacuum evaporation is adjusted so that there is formed on the surface of the alloy a coating consisting of aluminum and oxygen, the amount of the oxygen in the coating being less than the stoichiometric amount of oxygen in Al.sub.2 O.sub.3. When the material is heated in ambient or oxidizing atmosphere, an outermost layer of the coating is rapidly converted to Al.sub.2 O.sub.3.

Abstract: A process for forming a reflective surface, comprises the steps of: providing at least a part of at least one unanodized surface which has a peak-to-valley height Ra of equal to or less than 1 micron. The unanodized surface is selected from the group consisting of (1) refined aluminum with a degree of purity equal to or greater than 98.3% by weight aluminum and (2) aluminum alloys with at least one element selected from the group consisting of Si, Mg, Mn, Cu, Zn, Fe. The unanodized surface is in a form selected from the group consisting of rolled foil, rolled sheets, and rolled strips and said unanodized surface is used as a substrate. The process further includes depositing at least two layers from the gas phase on the unanodized surface, wherein the two layers include a ceramic adhesive layer from the gas phase and at least one reflecting layer from the gas phase on said adhesive layer for the reflection of radiation with wavelengths in the optical range.

Abstract: In a high-speed electrogalvanizing process, steel strip is protected from the formation of troublesome zinc nodules by masking the edges of the strip, while the strip is moving and upstream from the electrogalvanizing step, with an ultraviolet curable coating, and curing the coating, while the strip is moving, prior to introduction to the electrogalvanizing step.

Abstract: An electroluminescent device includes a light emitting layer made of a conjugated polymer that is prepared using halogen precursor route chemistry.

Abstract: The method of the present invention lies in a method for forming a scale preventive coating for preventing polymer scale deposition generated on inner walls of a polymerization vessel during polymerization, wherein a coating liquid containing a scale preventive agent is sprayed from an upper portion in the closed polymerization vessel, suction of gas in the vessel is simultaneously performed from a bottom portion of the polymerization vessel, an excessive coating liquid is discharged, and a coating of the scale preventive agent is formed on inner walls of the polymerization vessel. According to this method, a coating of a scale preventive agent can be uniformly formed throughout the entire inner walls of a polymerization vessel even in the case of a closed and large polymerization vessel having a volume, for example, not less than 80 m.sup.3.

Abstract: A method for applying a chromium surface treatment to nickel-based air data sensors to improve the corrosion resistance properties of the components while retaining thermal conductivity in order to efficiently transfer internally generated heat to the exterior of the component during anti-icing or deicing procedures is provided. The method for applying a chromium surface treatment to nickel-based air data sensors includes the steps of: (a) ion plating a nickel-based substrate with chromium atoms using a physical vapor deposition process; (b) interdiffusing the chromium and the nickel atoms at the surface region by means of a first thermal treatment carried out in an inert environment; and (c) oxidizing the chromium atoms at the surface region to create a chromium oxide layer during a second thermal treatment performed in an oxygen-containing environment.

Abstract: An oil applicator for applying a film of oil to a strip of metal has a hollow tubular shaft having a porous, oil absorbent sleeve, with oil sprays spraying oil onto the surface of the sleeve and a vacuum drawn through the hollow of the shaft to draw excess oil through apertures in the shaft wall for collection in a housing. A casing is provided that contains the applicator roll and a slot in the wall of the casing communicates with a duct through which a second vacuum is drawn which removes excess oil that may be applied to the strip of metal and collects the same in a second housing.

Abstract: An improved method for preparing copper clad laminates from a copper substrate without a conventional or infrared oven. The method contains the steps of: (a) preparing a precursory coating composition which can be subsequently cured to become polyimide; (b) coating the precursory coating composition on a copper substrate; and (c) exposing the precursory coating composition to an infrared heater provided in an infrared curing apparatus. The infrared heater is selected such that it emits infrared rays of wavelengths correponding to the absorption spectrum of the precursory coating composition. A plurality of infrared heaters can be provided in the infrared curing apparatus, each can be designed to have a different effective heating length and/or operated at a uniquely predetermined surface temperature for optimum energy efficiency.

Abstract: This patent teaches a new method of roughening the surface of a magnetic recording medium in order to reduce the stiction and friction between a recording head and the medium to thereby improve mechanical reliability. During this method, the medium substrate is heated to form second phase precipitates which result in roughening of the medium surface. The medium roughness can be controlled by proper selection of the heating temperature and time and the substrate alloy. This results in improved contact-start-stop (CSS) performance of the medium. The method of the present invention allows for lower costs and potentially higher throughput than conventional texturing processes.

Abstract: A resinoid dicing blade having approximately a 20% by volume porosity structure is coated and impregnated with Teflon.RTM. by a process which impregnates the resinoid blade with Teflon.RTM. to about 0.3 to 0.5% by weight. The Teflon.RTM. impregnated dicing blades not only reduces nozzle chipping when bonded silicon wafers are separated into a plurality of individual printhead die, but blade life is significantly increased.

Abstract: A process for manufacturing a metallized part comprises the following steps. A part is provided made from a substrate material selected from the group consisting of thermoplastic urethane (TPU), TPU alloys, polyester alloys, nylon, thermoplastic olefins (TPO) and aluminum. A single protective layer (combined primer/basecoat) is spray deposited, flashed and cured over the substrate. Over the combined primer/basecoat layer, a layer of corrosion prone metal is vacuum deposited to form a discontinuous film covering the combined primer/basecoat layer. A layer of clear resinous protective dielectric topcoat is spray deposited and cured to completely cover the layer of vacuum deposited corrosion prone metal material and fill channels formed in the discontinuous film layer.

Abstract: The magnetic medium includes a magnetic under image layer which may be separated from the hard magnetic recording layer by a nonmagnetic buffer layer. Virtual magnetic images induced in the magnetic image layer reduce off-track magnetization seen by the recording head. Thus, interference caused by tracks adjacent to the track being read is reduced.

Abstract: A method of impregnating a winding assembly of an electrical equipment with varnish, the winding assembly including a core and one or more windings wound on the core, the method comprising steps of enclosing the winding assembly in a bag, pouring a predetermined amount of varnish into the bag enclosing the winding assembly, reducing an atmospheric pressure in the bag and thereafter, maintaining the bag in the air-tightly closed state so that the winding of the winding assembly is impregnated with the varnish poured into the bag, and drying the winding assembly after completion of the step of impregnating the winding with the varnish.