Abstract: A metallic orthodontic wire is coated with a layer of tooth color material and a clear layer of material covers the tooth color material to allow the tooth color material to be seen through the layer of clear material. A preferred material for the tooth color layer is a plastic such as polyethylene or polyurethane. A preferred material for the clear layer is a silicone elastomer.

Abstract: Process and apparatus for forming a plastic coating on a metal strip. A metal strip is cleaned, surface treated, coated with an electrostatically charged plastic powder in an enclosed chamber using a plurality of spray guns positioned on both sides of the strip, inductively heated to above the melting point of the powder, and maintained in an infrared heater until the fused powder is flowed into a coating having a smooth surface and a uniform thickness. Thermoplastic and thermosetting coatings, having thicknesses of at least 10 microns formed using total induction and infrared heating times of less than 60 seconds, can be fabricated without cracking.

Abstract: An automated cutting and kitting system for preimpregnated composite material and method by which a layup of a plurality of plies of at least two types of preimpregnated composite material is cut and stored. Each ply of a given type of preimpregnated composite material is aligned in the order in which it is positioned in the layup, cut in accordance with a predetermined shape and stored such that the top ply in the layup is stored first. The different types of preimpregnated composite material are supported on a supply which is indexed to present the particular type of material required by the layup.

Abstract: Quarried building materials, e.g., slate, marble and stone, are waterproofed and structurally shaped by sawing such quarried material while concomitantly introducing water into the cutting zone, and wherein the process water contains an effective waterproofing amount of a silicone emulsion.

Abstract: A process for the preparation of a magnetic recording medium comprises the steps of subjecting a magnetic recording layer coated on a nonmagnetic support to surface smoothening treatment, said magnetic recording layer comprising a ferromagnetic powder dispersed in a binder, and then abrading a surface of the magnetic recording layer by means of an abrasive tape.

Abstract: Manufacture of glass mold plungers utilizes a thermal spray gun having combustion chamber with an open channel for propelling combustion products into the ambient atmosphere at supersonic velocity. The method comprises injecting into the chamber a combustible mixture of combustion gas and oxygen at a pressure in the chamber of at least two atmospheres above ambient atmospheric pressure, feeding into the chamber a powder comprising self-fluxing alloy particles, and combusting the combustible mixture in the chamber means whereby a supersonic spray stream containing the powder is propelled through the open channel. The spray stream is directed toward a glass mold plunger substrate such as to produce a coating thereon which is ground and polished. The coating may be fused prior to grinding.

Abstract: In a continuous vacuum vapor deposition system, a reduced-pressure chamber is partitioned into a plurality of sub-chambers by seal devices each formed by one set of three pinch rolls arrayed in parallel on one plane or a single seal roll, and a pair of seal bars positioned on the same plane on the respective sides of the pinch roll or seal roll. Gaps between the pinch rolls or seal roll and seal bars are adapted to allow the base plate portions on the inlet side and on the outlet side, respectively, to pass therethrough. In each of the reduced-pressure sub-chambers are disposed a pair of deflector rolls so that the base plate portions on the inlet side and on the outlet side may be wrapped respectively around the pinch rolls or seal roll with a wrapping angle of 10 degrees or more.

Abstract: A process for applying a permanent filled engraved identification to the surface of an object such as a paving brick which is made of porous material.

Abstract: A plate-like body (e.g., a silicon wafer) at least about 0.5 mm thick that is to be thinned is reinforced by applying to one main surface, in adhesive relationship thereto, a coating of a finely divided material which is fused to form a hard mechanically supportive coating. The body is thinned from the second main surface to a thickness less than about 250 .mu.m. For a silicon body, the mechanically supportive coating comprises at least about 18% silicon.

Abstract: A blanket is disclosed for an extended nip press which includes a shoe and a felt. The blanket includes a band-shaped body which defines an inner and an outer surface. The inner surface is smooth for cooperation with the shoe such that the inner surface slides relative to the shoe. The outer surface cooperates with the felt and the body is fabricated from monocoque fiber-reinforced polyurethane instead of a laminate to inhibit delamination and creep of the body during use of the blanket.

Abstract: A method for making a polymer thin film wherein a first polymer thin film is formed on a support liquid, on which a solution of a second polymer is dropped is described. The first polymer film is pulled in opposite directions to break the first polymer film as a slit, from which the second polymer solution is cast on the support liquid. As a result, the solution can spread uniformly without involving any appreciable irregularity in thickness of a final film product.

Abstract: A method for the production of a carbon electrode comprising disposing an electroconductive and flexible electrode substrate within a reaction tube to which a gaseous material gas of hydrocarbons is supplied, directly depositing a carbon material on said electrode substrate by chemical vapor deposition at 1500.degree. C. or less so as to coat said electrode substrate with a carbon material, and rolling said electrode substrate coated with the carbon material, resulting in a thin-plate shaped carbon electrode having a high density.

Abstract: A granular carbonaceous heat insulator comprising a carbon black pellet the surface of which is coated with a carbon layer having a dense structure is disclosed. This heat insulator is prepared by adhering a binder solution to a carbon black pellet, heating the resulting coating to remove a solvent from the binder solution and, at the same time, to cure the binder, and baking the carbon black pellet coated with the cured binder in a non-oxidizing atmosphere to carbonize the cured binder. Alternatively, the heat insulator is prepared by subjecting a carbon black pellet having specific characteristics to wet granulation in the presence of a binder solution to crush the carbon black pellet and, at the same time, to granulate the crushed pellet, thereby preparing a granulated carbon black pellet, followed by removal of the solvent from the prepared pellet, curing of the binder and baking of the cured binder in the same manner as that described above.

Abstract: A device and a method for producing the device for use in a chromatographic system wherein a component of a mixture is partitioned is comprised of a chromatographic material. In the chromatographic system the component traverses at least a portion of the chromatographic material. The device generally has at least one longitudinal edge substantially corresponding to the direction of traverse of the component. The longitudinal edge is modified to control the shape of the fron t of the traversing component by introducing along the edge either a plurality of indentations or a chemical substance.

Abstract: A IC wiring connecting method for interconnecting conductive lines of the same wiring plane of an IC chip for correcting the wiring, for interconnecting conductive lines of different wiring lanes of a multilayer IC chip at the same position, or for connecting a conductive line of a lower wiring plane of a multilayer IC chip to a conductive line formed at a separate position on the same multilayer IC chip. The insulating film or films covering conductive lines to be interconnected are processed by an energy beam such as a concentrated ion beam to form holes so as to expose the respective parts of the conductive lines where the conductive lines are to be interconnected, then a metal is deposited over the surfaces of the holes and an area interconnecting the holes by irradiating the surfaces of the holes and the area by an energy beam or a concentrated ion beam in an atmosphere of a gaseous organic metal compound to form a conductive metal film electrically interconnecting the conductive lines.

Abstract: A method of making a magnetic recording film having magnetic particles aligned in a given direction by subjecting an unfixed magnetic paint on a substrate to a rotating magnetic field having magnetic components only in a plane perpendicular to the given direction.

Abstract: The seal and guide includes two portions which are connected by an elastomeric hinge. One of the portions is a fixation member which attaches to the flange on the frame of an automobile. The other portion includes a guiding and sealing channel which receives a movable window. Due to the elastomeric hinge, the guiding and sealing channel is allowed to flex so as to compensate for irregularities in the shape of the door frame. In this manner, the window may be easily moved and properly sealed on a variety of door frames.

Abstract: A method of manufacturing a steel plate for a steel laminate gasket comprises applying a first seal coating consecutively on at least one side of a base plate in the shape substantially the same as that of an actual steel plate for constituting the gasket. After the first seal coating on the base plate is dried, the base plate is pressed or cut to form a plurality of steel plates. Each steel plate has a configuration as in the actual steel plate, an outer surface formed by the first seal coating on the entire one side thereof and a plurality of holes therein. When a steel laminate gasket is formed, the steel plate with the seal coating thereon is stacked with other steel plates so that the seal coating is located between the two steel plates.

Abstract: Apparatus and method for marking plastic panels which then are capable of being laminated at temperatures above 500.degree. F. These panels can be marked before or after being formed. The marking method is accomplished with the use of fluid pressure for directing a mixture of a particulate abrasive material and particulate coloring material under high pressure toward and onto a surface of a plastic panel to be marked. The coloring material particles are of sufficiently small particle size to coat the abrasive particles, so that the coloring material is carried by the abrasive material particles toward and onto the surface to be marked at high speed. When the coated abrasive particles strike the surface to be marked, the colored particles are effectively embedded below the surface of the plastic surface and in position so that they cannot be removed by cleaning detergents and the like.

Abstract: A process for fabricating a magnetic recording medium such as a disk medium having a uniformly high degree of magnetic particle randomization. The process includes steps of: forming a magnetic layer by applying a magnetic liquid to a continuously running support, and randomly orienting the magnetic layer by applying an AC magnetic field thereto while the magnetic layer is wet. The randomizing step is accomplished such that the magnetic field intensity of the applied AC magnetic field is 1/10 to 1/1 of the magnetic coercive force of the magnetic particles of the magnetic layer, and the frequency (Hz) of the field is set with respect to the running rate of the magnetic layer through the magnetic field so as to form a ratio to the application rate (m/min) within a range of 1/10 to 1/1.

Abstract: Reinforced synthetic polymer composite is treated by heating at a temperature and for a time sufficient to obtain a moisture content below that for the relative humidity level at which the composite is to be drilled and/or photoresist exposed; and then subjecting it to conditions to increase the moisture content to that for the relative humidity level of the drilling.

Abstract: An output scanner exposure cylinder perforated to allow exposure film to be held on to the cylinder by vacuum comprises a metal substrate carrying a coating of cured black resin composition which has been machined to e.g., a thickness of 0.1 to 1.5 mm. The resin is usually an epoxy resin and is applied as a powder and cured by heating.

Abstract: An article and process for the formation and molding of articles such as gaskets from useful areas of a flat textile panel. This panel is divisible into useful areas possessing textile reinforcement inlay threads in greater thickness and density than in the majority of the areas of the panel remaining outside the useful areas. The textile panel is produced from a ground pattern with the reinforcement threads inlaid thereinto. The useful areas are separated from the textile panel and embedding material is embedded onto the appropriate useful areas corresponding to the articles before or after the separation of the articles.

Abstract: Transverse bowing of a plastics web coated with a magnetic thin metal film is substantially eliminated by laterally stretching the coated web such that the lateral stress applied to the metal film exceeds the tensile strength of the film and the lateral stress applied to the plastics web lies within the yield point of the plastics material. The coated web is stretched by passage over a curved roll adjusted to provide a lateral strain of at least 1% and typically 1.8% in the web, and such stretching may cause a pattern of interlaced micro-cracks to occur in the metal film. Recording tapes slit from such stretched webs exhibit negligible cupping, and the pressure of micro-cracks has no adverse effect on recording performance or wear.

Abstract: The first and second electrodes, to which a recording signal is to be applied, are printed to a desired pattern on an insulating substrate by, for example, a screen printing method. A heating resistor is formed by, for example, a screen printing method so as to be bridged over these first and second electrodes. A protective layer is formed so as to cover the first and second electrodes and heating resistor therewith. Each of the heating portions of the heating resistor is provided with one or a plurality of laser-made holes, and the resistance value of each heating portion of the heating resistor is regulated to a predetermined level on the basis of the number of the laser-made holes.

Abstract: Label assemblies for redeemable coupons, pressure- sensitive labels, lottery tickets and the like. A strip of redeemable coupons comprises an indefinite length web coated with a release coating, at least one coupon on the web comprising a sheet of stock material, a first dry coating layer covering the surface of the stock material, a second dry coating covering the first dry coating and a pressure-sensitive adhesive layer over the second dry coating and adhesively securing the coupons to the web. The first and second dry coating layers are substantially incompatible so that they separate from one another when the coupon, applied to an uncoated surface, is pulled therefrom.

Abstract: A module for packaging and electrically interconnecting integrated circuit chips comprises: a porous ceramic substrate which has a major surface that is pitted by a portion of the pores. Voltage planes and ground planes lie internal to the substrate, and metal filled via holes feed through the substrate. A second material fills the pores in the major surface to form a pit free surface. This second material is of a type which resists abrasion substantially less than the ceramic substrate. And metal lines are disposed over the pit free surface for interconnecting the metal filled via holes to the integrated circuits.

Abstract: A flat annular disc filter paper has a plurality of randomly oriented fibers at its surface. The paper is impregnated with a phenolic resin so as to resist compression of the disc and swelling of the paper. The filter paper is made by soaking the paper in the resin, heating the paper and resin so as to burn and melt the resin into close contact with the paper and rolling the filter paper at a temperature above ambient temperature.

Abstract: A method for manufacturing polishing cloths of the class to be used with abrasive powders on a lapping machine is disclosed. The method comprises the steps of impregnating a nonwoven fabric sheet with a solution of polyurethane elastomer, wet-coagulating the impregnated sheet, and heating the resulting microporous composite sheet at a temperature higher than the softening point of the polyurethane elastomer under an essentially uncompressed condition.

Abstract: A multilayer laminate having at least one layer of a no longer formable fully aromatic polyimide and at least one layer of substrate material, the layer of no longer formable polyimide adhering directly on one side to the layer of substrate material with a peel strength of at least 4.0 N.cm. The layer of no longer also formable polyimide is also insoluble in phenolic solvents, has a tensile strength of from 100 to 150 N.mm.sup.2, a breaking elongation of from 15 to 100%, a dielectric dissipation factor of from 1.5.times.10.sup.-3 at 1 Khz. Additionally, a layer of heat-sealable high-temperature adhesive selected from the class of polyacrylates, polysulfone resins, epoxy resins, fluoropolymer resins, silicone resins or butyl rubbers is joined to that side of the polyimide layer which is remote from the substrate material.

Abstract: A flexible magnetic disk is provided with a protective layer at the peripheral edge portion of the circular hole in the center of a magnetic disk sheet. The protective layer is formed by applying a radiation-polymerizable composition to the peripheral edge portion of the circular hole in the center of the magnetic disk sheet by letterpress printing, and exposing the composition to a radiation to cure the composition.

Abstract: Volume independent test device and method for forming same, covering the top of reagent matrices with a water impermeable or semipermeable coating or membrane having spaced openings of limited size which permit liquid to pass through the coating or membrane and contact the underlying reagent matrix until the matrix becomes saturated are disclosed.

Abstract: An antistatic or electrically conductive carpet tile and a method of producing such carpet tile, which method comprises forming a plurality of separate columns of electrically conductive material, extending generally perpendicularly between the back surface of the carpet tile and the face of the carpet tile, the electrically conductive columns formed in a nonelectrically conductive thick backing layer, so as to provide an electrically conductive path from the face of the carpet to ground. An antistatic carpet which comprises a fibrous face secured to a primary backing layer, an electrically conductive precoating layer on the backing layer, and a nonelectrically conductive backing layer and a plurality of columns of electrically conductive material, such as electrically conductive polymeric ink, extending from the back surface of the carpet tile to the nonelectrically conductive backing layer and into contact with the electrically conductive precoat layer or face.

Abstract: The invention concerns the use of working bodies of low density in vibratory abrasive finishing machines for the smoothing of articles of wood, particularly articles of furniture, between the undercoating and varnishing thereof. The working bodies have either the shape of angular resin-free wooden pins of a size of 4.times.4.times.30 mm and an average Shore A hardness of about 95.degree. to 100.degree. or a flat base opposite which there is a head surface corresponding to the shape of a spherical segment.

Abstract: A method of treating piston rings to render their surfaces extremely hard-wearing, wherein the rings are assembled in batches on a tubular mandrel which is then surrounded by a matching cylinder, the mandrel bearing the rings and the cylinder being subjected to relative cyclical motion while a slurry of hard silicon carbide particles is poured into the cylinder. Either the wall of the tubular mandrel, or the wall of the cylinder, or both, are provided with holes to allow the slurry to flow away. The cyclical motion may consist of relative rotation at 170 r.p.m. and simultaneous relative reciprocation at 5 cycles per minute. The slurry may consist of 220 mesh silicon carbide powder in oil, with the treatment lasting for one minute, and preferably this is followed by a further treatment of one minute with a 400 mesh silicon carbide particle slurry.

Abstract: A method of abrading and simultaneously coating at least one surface of an article, particularly a circuit board assembly. The method comprises introducing abrasive particles into the compressed gas supply of a spray gun. The resulting gas stream with entrained abrasive particles is transported to and emitted from at least one spray nozzle of the spray gun where it is directed to the surface of the article with a film-forming coating composition stream also directed to and emitted from at least one nozzle of the spray gun. The abrasive particles can be simultaneously sprayed along with the optional coating composition onto the surface (these abrasive particles being microballoons in the case of a circuit board assembly). The surface is abraded while the coating is being applied. The resulting coating is substantially free of abrasive articles and has good adherence to the surface.

Abstract: A method is provided for making integrated circuit silicon composite die having a hot melt adhesive on the surface of its silicon base. An integrated circuit silicon wafer silicon composite die in wafer form is diced after a hot melt adhesive has been applied onto its silicon base utilizing a spin coating procedure. Integrated circuit silicon composite arrays are also provided by integrally bonding the integrated circuit silicon die onto a carrier substrate.

Abstract: Method and device for impregnating plates (5) with a dispersion (D), whereby the plates (5) are saturated with dispersant (M) in a device (1) and the plates (5) are dried with dry air in a drying system (2) from the surfaces (51) to be impregnated down to a predetermined depth and then the dispersion (D) is introduced with an application device (3) into the dried area and the plates (5) subsequently dried.The application roller (3) is located in a vacuum chamber (7). The plates (5) are conveyed among the various devices (1, 2, 3, 4) with a continuous conveyor (6), a conveyor belt for example.

Abstract: The present invention comprises an improvement upon the blown bubble process for forming thin heat sealable films from an extruded tubular structure. The utilization of a spray nozzle, internal to the extruded tubular structure, to provide a thin inner coating of a liquid polyorganosiloxane greatly reduces the internal film welding of extruded tubular polyolefin materials which internally weld at their processing temperature. Additionally, reduction of the internal welding allows films of reduced thickness to be manufactured.

Abstract: An improved resin-coated fiberglass knit tape is disclosed which is highly extensible in the lengthwise direction and heat-set to alleviate fraying at cut ends. Heat-setting with essentially no tension on the tape accounts for retention of good extensibility. The invention is especially applicable to the field of orthopedic casting tape.

Abstract: A water deflector for securement to the inner panel of a vehicle door to prevent water from entering the vehicle body or wetting the inner door trim panel. The deflector comprises a sheet of polyethylene peripherally shaped for covering the inner door panel, and having permanently plastic and permanently tacky pressure-sensitive adhesive on selective areas thereof for attaching the sheet to the inner door panel.

Abstract: A method of making a fiber reinforced polyimide matrix composite article is described. The method comprises preparing an aqueous solution of a polyimide matrix material containing sufficient nonionic surfactant such that the surface tension of the solution is about 35 dynes per centimeter or lower. The solution is then coated onto the fibers and the coated fibers formed into tapes. The tapes are then dried, cut into predetermined shapes and laid one on top of the other to form a lay-up. The lay-up is then densified under heat and pressure forming a polyimide matrix composite article.

Abstract: There is disclosed a method of and apparatus for producing a wear-resistant coating on a thin metallic strip, for example for the manufacture of coating scrapers for paper webs. After preparatory surface treatment the strip is passed longitudinally through a coating zone in which coating material in a molten state is sprayed onto the strip by a coating unit as the strip passes. The wear-resistant coating is built up in steps by the application of several coating layers one on top of the other, each being applied during a respective pass of the strip through the coating zone. The strip speed and the capacity of the coating unit are adjusted in relation to each other so that the heat supplied to the carrier material by each coating layer applied will be so slight in relation to the thermal capacity of the carrier material that the temperature increase in the carrier material does not cause any change in the physical properties of the carrier material.

Abstract: A method for making decorative emblems, plaques, and other decorative shapes having a clear, strong, weather-resistant, plastic coating over a decorative surface and shapes prepared by that method. The coated shapes are stamped from a substrate using a cutting die in which a pressure platform is resiliently mounted. The platform sandwiches the substrate in the area of the decorative shape against a punch such that the shape is not domed during the cutting operation and the shape obtained is essentially flat. In accordance with one working embodiment, a 2-working station die is employed wherein the shape is cut out with one stroke of the press at a first station using the aforesaid cutting die and the shape is ejected from the substrate at a second station with a subsequent stroke.

Abstract: Here are disclosed a nonwoven fabric comprising short fibres implanted from the surface(s) of a stretchably elastic foamed sheet deeply into the interior thereof wherein said short fibres are not only mutually entangled on said surface but also being interlocked with material of said foamed sheet on said surface as well as in the interior thereof; and a method for production of such nonwoven fabric by accomplishing implantation of said short fibres into said foamed sheet under high energy treatment with high velocity water streams (FIG. 4).

Abstract: A method of forming a wall covering which forms a plurality of horizontal colored sections wherein the colored sections are smoothly blended into each other forming no visual break from one color to the next. The machine is utilized wherein the uncolored ground is moved until a given length of the ground is located within a paint spray chamber. The ground is then fixed in position and a paint nozzle assembly moved laterally across the ground producing the desired colored pattern on the ground. The ground is then moved from the paint spray chamber into a drying chamber and from the drying chamber onto a collecting roll.

Abstract: A partial painting method suitable for partially painting a workpiece or article of a complex surface shape. A surface of the workpiece is coated with strippable paint. The coated strippable paint is dried into a strippable film on the workpiece surface. A laser beam is applied to the strippable film along a prescribed cutting line so as to cut the strippable film. A portion of the strippable film corresponding to a first area of the workpiece surface to be painted is peeled off, while the remaining portion of the strippable film is left adhering on a second area of the workpiece surface to remain unpainted, and thereby masking of the workpiece is completed. The first area is then painted with a paint to form a final paint coating.

Abstract: The specification discloses an improved automotive type carpet construction and method for manufacture thereof. The construction disclosed is particularly useful for lining the trunk of an automobile, the bed of an automotive type station wagon, or on the floor of a van type vehicle, where it is desired to have a construction which is light in weight, waterproof, easy to clean up, and yet can be made in a color to match the interior carpeting of the automobile. The construction disclosed has a primary layer of a ribbon fiber woven in a plain weave, with a continuous filament yarn inserted with a needled motion, and a bonding layer applied to the back thereof in a continuous hot melt flow. A non-skid layer may also be applied, if desired. The carpet construction is then die cut into one or more pieces with the piece(s) being sewn together or a binding being applied thereto.

Abstract: A process for the deburring of bonded moldings of granular material, for example, casting sand cores, by coating them in the same operation with a surface layer. The moldings are circulated within an annular vibrator together with an abrasive body medium which contains a powdered coating agent, the medium being preferably deflocculated by an approximately 50% proportion of hard-foam bodies.

Abstract: A method of treating the surfaces of elastomeric unvulcanized molded objects or semi-finished products for use in further manufacturing; the surfaces are neutralized with a separating material in the form of unvulcanized powdery rubber. This produces a good neutralization and an improved product quality, especially with objects which are produced by vulcanization.