Abstract: A method produces ferromagnetic core laminates for electrical machines. The core laminates have very thin layers of individual electrical strips which can be produced by a structure formed from layers of electrical strips. The electrical strips are connected by a connection layer, in particular an adhesive layer. This makes it possible to produce cores formed from layers of core laminate for electromagnetic machines, whose eddy-losses are reduced.

Abstract: A data transmission cable (2) comprises at least one pair of wires (4) comprising two wires (6) lying parallel to each other, each with an electrical conductor (8) surrounded by an insulation (10). The pair of wires (4) is sheathed over its length by a foil (12) with an electrically conducting inner side (14) and an electrically insulating outer side (16). To improve the electrical properties of the data transmission cable (2), the foil (12) has a longitudinal fold (18), so that the inner side (14) is directed outward, an additional wire (20), which contacts the inner side (14) made to face outward, being laid on the foil (12).

Abstract: A tubular covering sleeve (9) is manufactured which comprises a primary tubular body (10) externally coated with a sheath (14) formed of a layer of semiconductive material (15) coupled with an elastomer layer (16). The sheath (14) is made separately of the primary body and subsequently coupled therewith, before or after coupling of the primary body itself on a splicing region between two electric cables (2a, 2b). The sleeve one of the cables before electrically connecting the conductors (3a, 3b). Then a radial shrinkage of the sleeve (9) on the cables (2a, 2b) is caused at the splicing region. To carry out a sectionalisation (18), one end portion of the sheath and of the semiconductive layer (16) alone is turned up or mechanically removed, before or after engagement of the sheath (14) with the primary tubular body (10).

Abstract: Flexible indicia bearing labels are placed on armored electrical cable at spaced apart intervals while the cable is being moving continuously from an armoring station to a takeup reel or accumulator. A label dispenser places labels in a U shaped recess of a body which is moveable toward engagement with the cable. Opposed rollers fold one edge of the label over into engagement with the surface of the cable and the other edge of the label over onto itself in overlapping relationship. The cable is passed through a heat tunnel to shrink the labels into tight engagement with the cable. A controller monitors movement of the cable and controls actuators for applying and folding labels onto the cable at spaced apart intervals.

Abstract: The present invention relates to a polyimide metal laminate which is a metal laminate comprising a stainless steel layer/a conductor layer/a polyimide resin layer/a metal layer, wherein the conductor layer is interposed between the stainless steel layer and the polyimide resin layer as a ground, and having a strong adhesion between the conductor layer and the polyimide resin layer, thus being able to be processed and used as a hard disk suspension. Specifically, the metal laminate of the present invention is characterized in that a surface of the conductor layer in contact with the polyimide resin layer is not smooth (preferably its 10-point average surface roughness is 0.5 ?m or more).

Abstract: In a method and device for mounting an elongated member inside an elongated, elastic, flexible tubing, initially having an inside cross-sectional dimension that is approximately equal to or less than the outside cross-sectional dimension of the elongated member, the inner cross-sectional dimension of the flexible tubing is expanded by applying a pressurized fluid to the inner bore of the tubing, and inserting the elongated member into the tubing while the pressurized fluid is being applied.

Abstract: There is provided an electrostatic chuck. The electrostatic chuck includes: a ceramic base containing alumina and first flux; an electrostatic electrode built in the ceramic base; and a ceramic material containing second flux and provided between the ceramic base and the electrostatic electrode, the ceramic material contacting the ceramic base and the electrostatic electrode. A content rate of the second flux is higher than that of the first flux.

Abstract: An electrical cable and a method for manufacturing the electrical cable are provided in which a plurality of insulated conductors have an inner protective layer extruded thereabout. A plurality of longitudinally extending ribs or fins or exterior ribbed or finned surfaces are formed outward of the inner protective layer between which exist a plurality of voids. An outer insulation layer and the self-sealing material can be formed sequentially or simultaneously in the same operation as the fins or ribbed surface and the inner layer or in a subsequent operation.

Abstract: An electrical cable of the present invention comprises a plurality of spaced, parallel flat conductors. Each of the plurality of flat conductors was previously integral with each immediately adjacent flat conductor. A dielectric material is holds the conductors in the spaced, parallel relationship. The dielectric material can be a polymer film, a nonwoven, or other polymer materials such as PTFE, or expanded PTFE. The cable of the present invention is made by providing first and second webs of dielectric materials and a third sheet of conductive material. The first and second web materials are bonded to the third sheet of conductive material in a face-to-face layered relationship thereby forming a bonded laminate. The bonded laminate is then incrementally stretched to separate the sheet of conductive material in to spaced, parallel flat conductors.

Abstract: A flat electrical cable and a modular rotary anvil for assembling a flat electrical cable wherein the flat cable includes an upper and lower layer. The upper layer has ribs protruding along its length that are substantially parallel to one another, and continuous substantially parallel and adjacent seams formed therebetween. Conductors are placed between the upper and lower layers adjacent the seams. The present invention may have upper and lower polyester layers having copper conductors therebetween and the seams ultrasonically welded in order to provide a flat electrical cable for various applications such as incorporation in an automobile clockspring. The modular rotary anvil includes multiple removable and interchangeable segments or inserts which provide the ability to impart a smooth or knurled textured surface pattern to the work-piece. piece. Other inserts include cutting inserts which provide for a seam on the work-piece while a the same time cuts the work-piece along a seam.

Abstract: A method of manufacturing a ribbon cable, comprising providing a set of insulated wires and aligning said insulated wires in a predetermined arrangement. The insulated wires are warmed sufficiently for said insulation to be become soft and adhesive, are pressed together so that they adhere to one another and allowed to cool, to form a ribbon cable.

Abstract: A Roebel bar (10) for an electrical machine comprises a plurality of essentially parallel, transposed conductor elements (11, 12, 13), which, lying over and/or next to one another, form a bar with an essentially rectangular cross section, which is surrounded on the outside by an insulation (19) and has between the insulation (19) and the conductor elements (11, 12, 13) means (14, 14?; 15, 15?; 17, 18) for forming an inner corona protection (ICP). In the case of such a Roebel bar, particularly effective inner corona protection is achieved by the fact that the means for inner corona protection comprise preformed, angled profiles (17, 18) of an electrically conducting material, which, running in the longitudinal direction of the Roebel bar (10), enclose the edges of the bar formed by the conductor elements (11, 12, 13), and to which the insulation (19) is applied.

Abstract: The present invention relates to an apparatus for manufacturing wire having an inverted cone-shaped cylinder within a spool, wherein the diameter of the top end of the cylinder is larger than the lower end thereof enabling a tape wound thereon unwound from the spool to go from a lower position to a higher position of the cylinder while the tape being wrapped on the wire due to the centrifugal force of rotation in the wrapping process. This has the benefit of preventing the subsequent turns of the tape from loosening out of the spool, and enables the tape being continuously, evenly, and securely wrapped on the wire in a high speed operation.

Abstract: A method and article for producing a high transition temperature superconducting tape or wire with a normal metal sheath and at least two surface layers, an inner electrically insulating layer and an outer low friction layer. The method includes mechanical deformation and a plurality of annealing steps, and the application of at least one surface layer after the final annealing step. The coating materials are selected based on their electrical insulation and friction, as well as their compatibility with cryogenic conditions and coating methods.

Abstract: A heat tack application involves arranging an adhesive between a strand of conductive material and a strand of insulation material; applying a temperature of about 100-300° C. and a pressure of about 5-100 psi for about 5-120 seconds to tack the adhesive. A stack can thereby be formed, and a plurality of stacks assembled to form a nascent rotor coil that is subsequently arranged in a rotor slot. An applied temperature of about 100-500° C. and a pressure of about 100-1,500 psi can fully cure the adhesive after the coil is arranged within the rotor slot. Depending on the context of use, the conductive material may more generally be a first component, and the insulation material may more generally be a second component.

Abstract: A method of manufacturing a ribbon cable, comprising providing a set of insulated wires and aligning said insulated wires in a predetermined arrangement. The insulated wires are warmed sufficiently for said insulation to be become soft and adhesive, are pressed together so that they adhere to one another and allowed to cool, to form a ribbon cable.

Abstract: A method and device for the production of flat ribbon cables is disclosed, in which several metallic conductors are provided one next to the other and spaced apart in one or more planes, within a synthetic material sheath. The electrical conductors are placed on a ribbon-shaped base and secured with a curing synthetic material melt, so that the synthetic material film that lies in the gap between a roller and a shape molding causes the metallic electrical conductors to join and combine into one composite product. This intermediate product is then, within the same gap between roller and shape molding, joined and coated with a synthetic material compound in a plastic state with the result that the conductors are ensheathed on all sides.

Abstract: A technique and system for insulating conductors is provided in which insulating tubes are formed by winding insulating tape on a mandrel, with two or more layers of tape being wound in the same or opposite helical directions. The layers are bonded to one another and multiple tubes are formed in a series which can be nestingly assembled. The tubes are selected based upon the insulation rating desired and the size of a conductor. The tubes are assembled on the conductor and bonded to one another and to the conductor.

Abstract: A method of manufacture of gypsum board having inorganic fiber, preferably glass fiber, face sheets which have been completely impregnated with a gypsum slurry so as to penetrate through said random interstices between the inorganic fibers and to thereby coat the board surfaces gypsum slurry. A gypsum board product is formed by passing the wet gypsum board through a board forming station having double forming plates, an upper forming plate having at least a portion thereof being set at a predetermined angle relative to a lower forming plate and having a separation between the forming plates defining a predetermined dimension substantially equal to the desired thickness of the manufactured gypsum board product.

Abstract: A method for the manufacture of screened or shielded interconnecting conductors (1) begins with semifinished foil products (H1, H2, H3), a first semifinished foil product (H1) having at least one layer of conductors (10, 10′, 12, 12′, 13, 13′) including signal conductors (10, 10′) and shielding conductors (12, 12′, 13, 13′). Another semifinished foil product (H2, H3) has shielding material (23, 33), which is joined by a dielectric (15, 25, 35) to at least one layer of conductors (10, 10′, 12, 12′, 13, 13′), in which the shielding material (23, 33) is provided by photochemical structuring near the shielding conductors (12, 12′, 13, 13′) with openings (22, 22′, 32, 32′) extending to the dielectric (15, 25, 35).

Abstract: A flexible printed circuit board including a component mount section, which an electronic component is mounted on, and a cable section, which connects to the component mount section; circuit patterns being provided on the cable section, and covered by a soft laminated adhesive.

Abstract: The present invention relates to a security element for electronic article surveillance, comprising two at least partially overlapping layers of conductor strips interconnected by a dielectric adhesive coating. This arrangement reduces the risk of reactivation after activation is once effected. To achieve this, the upper layer and the lower layer of conductor strips have at least one turn, and that the strength of the two layers of overlapping conductor strips is so high as to cause the security element to bend, if subjected to mechanical strain, in those areas which are essentially devoid of conductor strips.

Abstract: A platform is provided for the manufacture of microwave, multilayer integrated circuits and microwave, multifunction modules. The manufacturing process involves bonding fluoropolymer composite substrates into a multilayer structure using fusion bonding. The bonded multilayers, with embedded semiconductor devices, etched resistors and circuit patterns, and plated via holes form a self-contained surface mount module. Film bonding, or fusion bonding if possible, may be used to cover embedded semiconductor devices, including embedded active semiconductor devices, with one or more layers.

Abstract: An interlayer connection structure in a circuit board characterized in that a local part of a conductive circuit layer disposed at one surface side of an insulative sheet is bent inwardly of the insulative sheet so that an apex of a projectingly bent portion is formed, and the apex of the projectingly bent portion is abutted with another conductive circuit layer disposed at the other surface side of the insulative sheet so that an interlayer connection is established therebetween.

Abstract: A platform is provided for the manufacture of microwave, multilayer integrated circuits and microwave, multifunction modules. The manufacturing process involves bonding fluoropolymer composite substrates into a multilayer structure using fusion bonding. The bonded multilayers, with embedded semiconductor devices, etched resistors and circuit patterns, and plated via holes form a self-contained surface mount module. Film bonding, or fusion bonding if possible, may be used to cover embedded semiconductor devices, including embedded active semiconductor devices, with one or more layers.

Abstract: A flat electrical cable and a method of assembling a flat electrical cable is provided wherein the flat cable includes an upper layer having ribs protruding along its length and substantially parallel to one another, continuous substantially parallel and adjacent seams formed between and upper an lower insulator layer conductors between the upper and lower layer adjacent the seams and a pattern formed in the surface of the lower insulator layer. The present invention may have upper and lower polyester layers having copper conductors therebetween and the seams ultrasonically welded in order to provide flat electrical cable for various applications such as incorporation in an automobile clockspring.

Abstract: A composite cable has a reinforcing layer with conductors disposed on opposed planar surfaces. Dielectric film layers electrically separate the conductors on the planar reinforcing layer from respective layers of additional conductors. The flexible cable is manufactured by laminating a layer of dielectric film and a layer of electrically conductive material onto both sides of a double clad core which provides a strain relief reinforcement for the cable.

Abstract: The process calls for extrusion of a multilayer tubular structure with semiconducting innermost layer. In production of the sleeve the inner layer is partially removed leaving only a central portion forming an electrode. In addition the intermediate layer is made with a compound having pre-determined relative dielectric constant and dielectric rigidity.

Abstract: A method is used to produce thermally shrinkable and electromagnetic wave proof tube and the product thereof which is internally or externally covered with a metallic net-like sleeve woven by soft zinc coated copper wires so as to make the electric cords arrangement in the tube neat, signal transmissions in a higher quality, appealing to eyes and durable against abrasion in use. The net-like sleeve can be woven by means of a weaving machine with different number of soft zinc-coated wires, such as 16, 24, 32 and 48 wires to obtain net-like sleeves of various densities and sizes. A so woven net-like sleeve is expandedly supported by a hollow metallic rod into shape and it can be adhered to the outer or inner surface of a thermally shrinkable tube. The metallic net-like sleeve can shrink along with the plastic tube when heated. It not only can neatly bind electric cords in a tube but also makes the tube appealing to eyes, durable against abrasion and anti-electromagnetic wave in practical operation.

Abstract: The process of the invention to make miniaturized multipolar cables includes the steps of combining together a plurality of individually insulated conductors, inserting a filling in a pasty state and containing mineral fillers into the gaps existing between the conductors, partly hardening the filling and disposing the other cable components, in particular the sheath, around the conductors-filling assembly, and letting the filling become completely hard within the produced cable.

Abstract: The present invention is an improved jacketing material for all forms of electro-magnetic energy conductors. The jacket material of the present invention comprises a silicone material that is imbibed into a porous polymer, such as expanded polytetrafluoroethylene, to produce a flexible and durable composite. When applied as a cable jacket, the composite material of the present invention produces dramatic improvement over the use of silicone alone, especially in the areas of load sharing, resistance to fatigue from repeated flexure, and resistance to harsh environmental conditions. The ability of the material of the present invention to withstand repeated autoclave cycles without compromise makes it particularly suitable for cable jacketing in biomedical applications.

Abstract: A device capable of co-operating with an outer pressure member to form a sealing block between two or more elongate substrates and a hollow housing within which the substrates extend, the device comprisingi) an elongate support member andii) two or more elongate flexible leaves each of which comprises a sealing material that (a) is not heat fusible, (b) is secured relative to the support member, and (c) extends laterally of the elongate support member,the device being positioned, in use, between the elongate substrates, so that a first of the flexible leaves extends at least part of the way around the periphery of a first of the elongate substrates, and a second of the flexible leaves extends at least part of the way around the periphery of a second of the elongate substrates, so that in co-operation with the action of the outer pressure member acting inwardly on the substrates and the device, and outwardly onto the housing, a sealing block is made between the elongate substrates and the housing.

Abstract: A method for taping together a plurality of wires to create a plurality of individual multiple wire harnesses includes first providing a number of wires, each wire having an end connected to any one of a plurality of end connectors. Then feeding tape to a taping mechanism and applying the tape to the wires along a direction perpendicular to the axes of the wires to form a single bound multiple wire harness. Finally, the bound multiple wire harness is cut into a plurality of individual multiple wire harnesses, each one including an end connector. An apparatus includes a tape feed and application mechanism for applying the tape to the wires along a direction perpendicular to the wires axes; and a tape cutting mechanism to form the plurality of multiple wire harnesses.

Abstract: An arrangement for delivering an elastic sleeve on to an electric cable comprises an elastic sleeve (20) expanded radially on to a hollow rigid tubular support tube (18) with a tubular mesh (22) of plastics material interposed therebetween. The mesh (22) extends beyond one end of the support tube (18) and is then fed back through its hollow center. The one end of the tube (18) is disposed adjacent the end of the cable, and the mesh (22) within the tube (18) is progressively pulled so as to invert the sleeve (20) on to the cable end.

Abstract: An antipilferage tag is disclosed which includes a resonant circuit adapted to receive an RF signal and to transmit a response signal when interrogated by said RF signal. The tag includes circuit components constituted by or fabricated from a metallized layer supported by a dielectric material.

Abstract: A device for girding an article with a strip of adhesive tape whose ends adhere to one another where the device includes a housing with a cavity for accommodating a supply roll of adhesive tape, a star wheel rotatable with light friction having a number of spokes bounding identical, substantially radial recesses disposed at mutually equiangular distances, two mutually registered slits open on one side which are present in the front wall and the rear wall respective of the housing and which together bound a channel wherethrough an article for girding is moved from the open side. A movable positioning arm is arranged hingedly on a tilt piece which engages with its free end into a recess in the star wheel, whereby this star wheel is positioned such that another recess is situated in a channel and is ready to receive an article for girding.

Abstract: Armored cable sheath is coded for easy visual identification by applying patterns, e.g., colored patterns, along the length of the cable.

Abstract: An improved low noise electrical signal transmission cable is disclosed. The cable employs an insulative layer of expanded polytetrafluoroethylene (PTFE) which is bonded in fixed relative position with a surrounding shield layer through use of an adhesive, such as fluorinated ethylenepropylene (FEP) or perfluoroalkoxy polymer (PFA). The bonding process reduces the separation of layers which can sometimes occur with expanded PTFE insulative cables and avoids the generation of unwanted triboelectric signals that can result from such separation.

Abstract: A radiating cable comprises a core having a center conductor bonded to, centered in, and supported by discs of dielectric material. A sleeve of dielectric material is extruded over the discs and thereby bonded thereto to form a plurality of sealed, coaxial, dielectric chambers. A tubular outer conductor is bonded in concentric relation to the sleeve. In a continuous process, at least one slot is formed in the outer conductor by a cutting operation and an outer jacket is extruded over the outer conductor. In a preferred embodiment, the outer conductor is made of an aluminum tube and two circumferentially equally spaced slots are formed therein by removing between 10 and 35% of the aluminum material. The width of the resulting slots may be configured so that a joint is formed in the slot between the insulating sleeve and the outer jacket, thus obviating the use of adhesive in bonding the outer jacket to the cable.

Abstract: An apparatus for taping wires of a wire harness includes first and second tape application heads interconnected together and disposed proximate to a wire guiding mechanism. Both of the first and second tape application heads have hollow inner cores which communicate with a source of negative air pressure to draw a vacuum in each tape application head which causes a strip of wire tape to adhere to the outer surfaces of the application heads. One of the application heads is brought into contact with a plurality of wires guided across the head, while the second application head rotates around a common axis shared by the two heads, whereby each of the first and second application heads generally oppose each other and apply the strip of tape to the wires.

Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.

Abstract: A multilayer circuit board having three or more conductive layers, with at least two conductive layers electrically and mechanically connected by an interconnecting adhesive layer, is disclosed. The interconnecting adhesive layer comprises a conductive adhesive material having a plurality of deformable, heat fusible metallic particles dispersed substantially throughout a non-conductive adhesive. The fabricated multilayer circuit boards have interconnections which are reliable, heat resistant, and capable of withstanding thermal cycling and typical circuit board finishing and assembly processes.

Abstract: An improvement in a method for the manufacture of electronic surveillance tags by providing a continuous web of electrically insulative material, applying to opposed surfaces of the electrically insulative material web a succession of first and second electrically conductive coils and applying to the succession of first electrically conductive coils a normally electrically insulative deactivation structure extending across the first coil succession and convertible to be electrically conductive, the improvement comprising the step of providing an electrostatic charge drain in electrically conductive relation with each of the first electrically conductive coils substantially throughout the manufacture of the tags. The new step may be practiced by providing an elongate electrically conductive member across the succession of first electrically conductive coils in electrical continuity therewith.

Abstract: Armored cable sheath is coded for easy visual identification by applying patterns, e.g., colored patterns, along the length of the cable.

Abstract: A method of protecting a substrate, which comprises:(a) providing an article having a first portion that has means allowing that portion to be deformed from a larger cross-sectional size to a smaller cross-sectional size and maintained at that smaller size, and that comprises a heat-shrinkable material,(b) positioning the article such that a first portion encloses at least a part of the substrate,(c) deforming the first portion to the smaller cross-sectional size at which it corresponds closely to the part of the substrate, and(d) heat-shrinking the material to cause the first portion of the article to engage the substrate.

Abstract: An arrangement for forming a stub splice between two or more elongate electrical conductors comprises a hollow electrical connector and a hollow cap containing a quantity of gel. In use, the cap engages an open end of the connector, and the elongate conductors extend through the open end of the connector and through one or more apertures contained in the cap. Once the cap is engaged, the gel is compressed and the splice is sealed against moisture ingress. In order to ensure that the gel is maintained under compression, the cap may optionally contain a quantity of non-gelatinous resiliently compressible material which substantially compensates for any changes in the volume of gel.

Abstract: A method of sealing a connector (2) in an electrical cable (1) for example a submarine cable comprises:(i) applying a quantity of gel (6) onto the connector and encapsulate at least part of it;(ii) positioning an inner hollow dimensionally recoverable article (9), for example in the form of a cap, about the connector and gel and recovering it thereon to enclose the gel and at least part of the connector, the recovery causing part (12) of the gel to exude out of the open end of the article; and(iii) positioning an outer hollow open-ended dimensionally recoverable article (13) over the connector (2) and recovering it so that it encloses at least the end of the inner article (9) and the part (12) of the gel (6) that has exuded therefrom.This method can enable an effective seal against moisture ingress to be made while at the same time being relatively easy to remove for re-entry without damaging the connector.

Abstract: A ferrite chip bead includes a ferrite substrate, a plurality of outer electrodes formed at opposite sides of the ferrite substrate, and a plurality of conductive leads each extending transversely through the ferrite substrate and having opposite ends protruded outwardly of opposite side surfaces of the ferrite substrate and connected to corresponding outer electrodes. Conductive leads are embedded in the ferrite substrate by introducing conductive leads in a central portion of a nozzle for extruding the ferrite substrate such that the conductive leads are embedded in the ferrite substrate being extruded, or by introducing conductive leads between ferrite substrate sheets being fed to be bonded together for forming the ferrite substrate such that the conductive leads are interposed between the ferrite substrate sheets being bonded. The ferrite chip has no tendency for outer electrodes to short-circuit from the ferrite substrate upon carrying the chip bead on a circuit board.

Abstract: A method of using a sealing material for an electric wire connection, comprising a tape-form releasable material, viscous sealing pieces comprising a waterproofing compound, each piece having a width narrower than the width of the releasable material and being releasably formed on one surface of the releasable material, and a sheet-form base material having a larger area than the viscous sealing piece such that each end of the base material projects over each edge portion of the viscous sealing piece formed in one body on each viscous sealing piece. The method includes supplying the sealing material from a tape-form releasable material, the sealing material provided thereon at a constant interval covering the electric wire connection, and pressing the sealing material to adhere to the surfaces of the electric wires.

Abstract: Armored cable sheath is coded for easy visual identification by applying patterns, e.g., colored patterns, along the length of the cable.