Flat Or Ribbon Type Patents (Class 174/117F)
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Patent number: 6162993Abstract: A signal conductor for high-frequency signals has a first carrier layer and a second carrier layer each having a suitable dielectricity. At least one electrically conducting signal path is provided and is positioned at a lateral spacing between first and second electrically conducting ground paths. The electrically conducting signal path and the first and second electrically conducting ground paths are positioned between the first and second carrier layers. A first shield is connected to the first carrier layer at a side of the first carrier layer facing away from the second carrier layer. A plastic sheeting is connected to the second carrier layer at a side of the second carrier layer facing away from the first carrier layer. A second shield is connected to the plastic sheeting remote of the second carrier layer. The plastic sheeting has connection lugs, and the second shield has a cutout at a location where the connection lugs are arranged on the plastic sheeting.Type: GrantFiled: September 3, 1998Date of Patent: December 19, 2000Assignee: Stemmann-Technik GmbHInventor: Klaus Barthelt
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Patent number: 6153832Abstract: An insulated substantially flat multi-conductor flexible printhead carriage trailing cable fabricated as a unit for conducting de-multiplexed electrical printhead control signals to inkjet printheads mounted on a moveable carriage is provided with a longitudinally extending cut and Z-fold at the carriage end for efficient fabrication of a plurality of units from a single manufacturing panel.Type: GrantFiled: February 8, 1999Date of Patent: November 28, 2000Assignee: Hewlett-Packard CompanyInventor: Glenn Gaarder
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Patent number: 6137059Abstract: A ground plane cable has a layer of first conductors. A layer of second conductors is arranged in parallel to the first conductors. A grounding plate is arranged between the first and second conductors. Each layer of first and second layer of conductors has at least a conductor electrically contacting with the grounding plate.Type: GrantFiled: December 28, 1998Date of Patent: October 24, 2000Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: David Quiroz
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Patent number: 6118665Abstract: A flexible printed circuit having wiring patterns printed on a flexible resin film, comprising a narrow flexible area having first wiring patterns and constituting a flexible wiring part and a broad connection area adapted to be adhered to a main board and having second wiring patterns connected to the first wiring patterns and adapted to be electrically connected to wiring patterns on the main board. The second wiring patterns serve to electrically connect the first wiring patterns of the flexible wiring part to the wiring patterns on the main board. Also included is a conductive adhesion surface formed on the broad connection area along a side of the main board, having a width larger than a width of the first wiring patterns, and extending from an inside of a region to an outside thereof. The region is defined in the broad connection area by extending a boundary of the flexible area into the broad connection area.Type: GrantFiled: March 18, 1998Date of Patent: September 12, 2000Assignee: Fujitsu LimitedInventors: Katsuhiko Kishida, Katsunori Tanaka, Toshiya Onodera, Hirofumi Miyamoto
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Patent number: 6111203Abstract: A ground plane cable assembly (10) includes a flat ribbon cable (12) and a ground plane (18) sandwiching a dielectric spacer (20) therebetween wherein several openings are provided in the dielectric spacer (20) to lower the capacitance between the flat ribbon cable (12) and the ground plane (18) so that the impedance of the whole cable assembly (10) can be raised to a relative high value without increasing the thickness of the dielectric spacer (20).Type: GrantFiled: May 29, 1998Date of Patent: August 29, 2000Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Ken Cheng, Chih-Hsien Chou, Eric Juntwait
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Patent number: 6107577Abstract: A flat, surface mounted, flexible, multi-purpose wire has a plurality of flat elongated conductors spaced apart in a generally parallel relationship. Each of the flat conductors includes a plurality of conductive layers. At least one optical fiber lies lengthwise in a plane between the flat conductors. An adhesive material separates the flat conductors and an insulation layer surrounds the flat conductors and the adhesive material, with the adhesive material bonding to the insulation layer. A cross-sectional height of the flat conductors and insulation layer is such that the multi-purpose wire will blend in with the surface when painted or after wallpaper is applied.Type: GrantFiled: December 4, 1997Date of Patent: August 22, 2000Inventor: Robert Jay Sexton
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Patent number: 6093886Abstract: A vacuum-tight cable feedthrough device includes a metallic first flange that is penetrated by a slot. Passing through the slot is a flat stripline cable that includes a plurality of conductive signal channels encompassed by a dielectric material on whose upper and lower surfaces is disposed a conductive material including a ground. The stripline cable is sealed within the slot to provide a substantially vacuum-tight seal between the cable and the first flange. In a preferred embodiment, the cable feedthrough device includes a plurality, at least 16, of stripline cables. In a further preferred embodiment, the device includes a second flange and a bellows sealably connecting the first and second flanges, thereby providing a substantially vacuum-tight, flexible housing for the plurality of cables.Type: GrantFiled: October 28, 1997Date of Patent: July 25, 2000Assignee: University of RochesterInventors: Kamel Abdel Bazizi, Thomas Eugene Haelen, Frederick Lobkowicz, Paul Francis Slattery
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Patent number: 6093894Abstract: A bonding opening exposing conductors through a cover of a multiconductor flat cable or electrical component to allow direct bonding thereof is described. The multiconductor flat cable or electrical component having a base layer with conductors disposed thereon and a flat cover having an opening provided therein at a bonding site, preferably by die cutting. The flat cover with the opening is laminated to the base layer, overlaying the conductors, so that the conductors are mechanically stabilized by the base layer while being exposed through the bonding opening. The shape of the multiconductor flat cable or electrical component of the present invention may be highly varied. In one embodiment, the flat multiconductor electrical component circumferentially extends around a central area, for example, totally encompassing in IC chip which may be connected to the conductors thereof at a bonding site.Type: GrantFiled: June 26, 1997Date of Patent: July 25, 2000Assignee: International Business Machines CorporationInventors: Richard Lee Carlson, Bruce Dale King, Rudolph Manuel Lopez, Alex Irwin Panasiuk, George G. Zamora
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Patent number: 6080935Abstract: A method of making various insulated conductor sizes during a transformer coil winding process by slitting and bonding insulating sheet materials and foil sheet conductor into a composite foil conductor/insulation. The method includes folding the composite into a substantially U-shaped length having a central portion between two leg portions with each leg portion having a free end. The method also includes folding the leg portions of the "U" inwardly to a position substantially parallel to the central portion of the "U" to bring the free ends of the leg portions into opposing relation to provide a folded insulated foil conductor having a two-conductor thickness surrounded by insulation. Provision is also made for increasing the cross-sectional area of the conductor.Type: GrantFiled: July 21, 1998Date of Patent: June 27, 2000Assignee: ABB Power T&D Company Inc.Inventors: Thomas J. Lanoue, Richard P. Marek
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Patent number: 6057511Abstract: A flexible flat belt made up of a plurality of covered wires abutting each other in side-by-side relationship. Imaginary lines on the peripheries of the covered wires which are parallel to and remote from the axes of the wires determine at least one plane. The adjacent wires form troughs parallel to and spaced apart from the axes and adhesive is applied to the troughs between adjacent wires. It is preferred that a first adhesive, which sets instantaneously, be applied at spaced apart intervals between adjacent wires. Since this adhesive is spaced apart, flexibility is not impaired. This is used in conjunction with the second adhesive which is non-setting and is supplied substantially throughout the length of adjacent wires. Due to its character, it does not interfere with the flexibility of the flat cable.Type: GrantFiled: August 25, 1998Date of Patent: May 2, 2000Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kenji Ikeda, Osamu Tamada, Yoshihiro Tamura
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Patent number: 6043434Abstract: The invention relates to a flat cable for transmitting high bit rate signals including at least one pair of individually insulated conductors, a layer having at least one groove and a conductive grounding member located on the surface of each groove. This cable includes two conductors each individually twisted with a short lay and thus maintained juxtaposed in the same groove of the layer. Application to cables for local area networks of computers working at frequencies that can attain 100 MHz.Type: GrantFiled: April 9, 1998Date of Patent: March 28, 2000Assignee: AlcatelInventor: Daniel Prudhon
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Patent number: 6043435Abstract: The invention relates to a conductive portion device (300) having a plurality of independent conductive portions and attached to an attaching base member (360). The device includes a film (310) and a plurality of conductive materials (321, 322 and 323) to be attached to the film (310), which constitute the respective independent conductive portions, and the device further has holes (302a to 302d) corresponding to protrusions (362a to 362d) formed on the attaching base member (360).Type: GrantFiled: January 28, 1998Date of Patent: March 28, 2000Assignee: Tokai Kogyo Kabushiki KaishaInventors: Takayuki Yamaguchi, Katsura Sugiura
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Patent number: 6036259Abstract: A motor vehicle roof with movable cover element (13) which can close or selectively at least partially expose a roof opening (12) in a fixed roof surface (11). There is an electrical cable connection between the cover element (13) and the fixed roof surface (11). The cable connection is attached at one point to, cover element (13) and at a different point securely to the roof. The electrical connection is formed of a ribbon cable which is bent in a U shape in its longitudinal direction between the attachment points (21, 27) and is essentially planar in its transverse direction between the attachment points (21 and 27). The ribbon cable (20) peals off of the contact surface (23) provided on cover element (13) and/or the roof contact surface (26) when the cover element (13) is moved and is reapplied in an opposite direction of movement.Type: GrantFiled: October 22, 1997Date of Patent: March 14, 2000Assignee: Webasto Karosseriesysteme GmbHInventors: Johann Hertel, Walter Schatzler
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Patent number: 6023022Abstract: A case body having first and second case bodies. A bus bar having a plurality of terminals and a tie bar integrally connecting the terminals to each other. A wire is positioned by a holder engaged with an engaging portion on the first case body. The bus bar and the flat cable are positioned by an engagement between a through hole thereof and a projecting portion on the first case. In a state of being positioned, a core wire, the terminal and a conductor portion are mutually connected to each other. The first and second case bodies are joined in a state of being positioned in the above manner. The tie bar is cut and a plurality of terminals are held within the case body in such a manner as to be mutually independent from each other. In accordance with this structure, a relative positioning among the wire, the bus bar and the flat cable is performed by a structural engagement between each of the members and the case body without using an insert molding.Type: GrantFiled: July 6, 1998Date of Patent: February 8, 2000Assignee: Yazaki CorporationInventors: Kazuto Nakamura, Hiromi Masuda
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Patent number: 6020559Abstract: A flat flexible cable made from a conductor array including a plurality of longitudinally extending flexible conductors arranged side-by-side in parallel and transversely spaced relationship. A first pair of heat resistant electrically insulating films lie above and below a first preselected longitudinal section of the conductor array. The first pair of films are adhered together with the preselected longitudinal section of the conductor array adhered therebetween. A second pair of electrically insulating flexible films lie above and below a second longitudinal section of the conductor array contiguous to the preselected longitudinal section. The second pair of films are adhered together with the second longitudinal section of the conductor array adhered therebetween. The pairs of films engage with a joint formed therebetween. At least one film of the first pair of films defines a plurality of access openings to conductors of the conductor array.Type: GrantFiled: December 2, 1997Date of Patent: February 1, 2000Assignee: Funai Electric Co., Ltd.Inventor: Osamu Maeda
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Patent number: 6016253Abstract: According to known methods, several circuit board pieces in a three-dimensional arrangement of an electronic module are connected together electrically by the film connectors and arranged around an operator control or actuator element in the three-dimensional form. The assembly of such modules is, however, very costly because the circuit boards must all be fastened mechanically. By using film connectors with greater stiffness, circuit board pieces can be held over these directly without additional mechanical securing devices and the three-dimensional circuit board arrangement can be secured by appropriate securing devices in the three-dimensional form. A preferred application is for electronic modules with operator control and/or actuator elements where the space available is very limited, in particular for modules fitted in motor vehicles.Type: GrantFiled: September 17, 1998Date of Patent: January 18, 2000Assignees: Temic Telefunken Microeletronics GmbH, Marquardt GmbHInventors: Georg Seitz, Joachim Lach, Ernst-Ludwig Klein, Roland Wolfschlager, Ekkehard Sachs
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Patent number: 6008455Abstract: At a signal transmission rate of 1 Gb/s, the "bit time" is 1 ns. This corresponds to a bit length in an optical fibre of 0.2 m. In view of the fact that skew shall not exceed one-tenth of a bit length, this means that length differences between different conductors in a transmission line may not exceed 2 cm. With the intention of minimizing the skew that would thus otherwise occur in a transmission line, the transmission line (1) and its conductors (2) have been joined to form a ribbon cable or flat cable where the length difference (5) between different conductors (2) in the transmission line does not exceed 2 cm. By providing transmission lines, such as rolled-up flat ribbon cables for instance, which have been previously cut to precise and appropriate lengths, such as lengths of 10, 20, 30 m for instance, with a largest length deviation between different conductors of .+-.1 cm, skew can be minimized when using the cables.Type: GrantFiled: January 27, 1997Date of Patent: December 28, 1999Assignee: Telefonaktiebolaget LM EricssonInventors: Bengt Lindstrom, Hans-Christer Moll, Odd Steijer
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Patent number: 6005193Abstract: An electrically conductive cable for transmitting electrical signals is disclosed. In a preferred embodiment, the cable includes a first braided wire conductor having a cross-sectional height and cross-sectional width which is more that twice the cross-sectional height, a first dielectric sheath surrounding the first oval braided wire conductor. The cable also includes a second braided wire conductor which has a cross-sectional height and a cross-sectional width which are substantially identical to those of the first oval braided wire conductor, and a second dielectric sheath surrounding the second oval braided wire conductor. In the preferred cable design, the second oval braided wire conductor is disposed vertically above the first oval braided wire conductor to enhance performance characteristics of the cable. A metallic shielding tube may be provided surrounding the first and second conductors and their respective sheaths.Type: GrantFiled: August 20, 1997Date of Patent: December 21, 1999Inventor: Mark L. Markel
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Patent number: 5987204Abstract: A cable assembly having predetermined discrete locations for subsequent connectorization is provided. The cable assembly of the present invention includes at least one conductor which may be an optical fiber or standard electrical wire conductor or any other type of conductor. The cable assembly also includes at least one layer of protective coating over the conductor. At least one prescored area is formed in the protective coating during the manufacturing process to provide for ease of connectorization in the field. Preferably, cable stripping is accomplished without the need for any tooling as a result of the prescored area formed in the protective coating.Type: GrantFiled: October 14, 1997Date of Patent: November 16, 1999Assignee: 3M Innnvative Properties CompanyInventors: Nicholas A. Lee, Gordon D. Henson, Michael A. Meis
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Patent number: 5973268Abstract: A multicolor electric cable includes a plurality of core wires respectively having a PVC coating layer disposed at an outer periphery thereof. The PVC coating layers each have a color different to the other layers. A corresponding number of transparent PVC layers respectively covers around each PVC coating layer for a user to identify individual wires, wherein adjacent transparent PVC layers have a connection formed therebetween.Type: GrantFiled: December 9, 1997Date of Patent: October 26, 1999Inventor: Yu-Feng Cheng
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Patent number: 5973265Abstract: A wire harness includes a polymer sheath integrally formed splice locators and a molded slit for a repair wire formed integrally with the sheath. The wire harness includes a plurality of wires having a continuous sheath molded around the wires. The splice locator is generally axially aligned with the splice, thereby providing a visual indicator of the location of the splice. The splice locator is preferably molded in a visibly different cross section, diameter, and color from the sheath. The wire harness further includes a molded slit extending axially along the wire harness for receiving a repair wire.Type: GrantFiled: August 29, 1997Date of Patent: October 26, 1999Assignee: Lear Automotive Dearborn, Inc.Inventors: Timothy F. O'Brien, Joseph J. Davis, Jr., Jeffrey A. Branch, Michael Vincent Maher
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Patent number: 5970608Abstract: A new electrical connector system employs two printed circuit board type connector components (1 & 3), each containing a plurality of plated-on metal lines (11 & 13) running along the board in parallel, and a replaceable contact element (9), termed an interposer, that is sandwiched between those printed circuit boards. The interposer contains malleable electrical contacts (15 & 17) on each side that extend electrically from one surface to the other and serves as a contact bridge for those connector contacts. The interposer is formed as a thin insulator strip and metal bumps on the top and bottom sides of the strip serve as the electrical contacts. Bridging connection for metal bumps on the top side with associated bumps on the bottom side is served with plated-through holes (16). The metal bumps are of Indium and Tin that is covered by a flash of Gold. Ancillary to the described connector, a new method for constructing an electrical connector is also presented.Type: GrantFiled: October 19, 1998Date of Patent: October 26, 1999Assignee: TRW Inc.Inventors: Thomas S. Tighe, Gershon Akerling
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Patent number: 5966293Abstract: An electrical interconnection structure. The electrical interconnection structure includes a mother board substrate having a plurality of layers. At least one layer includes a signal path having a characteristic impedance of Z.sub.O and a conductive ground plane. A signal via passes through each layer of the mother board substrate. The signal via electrically is connected to the signal path. A ground via passes through each layer of the mother board substrate. The ground via is electrically connected to the conductive ground plane. The electrical interconnection structure further includes a plurality of flex circuits. Each flex circuit includes a flex signal path having a characteristic impedance of Z.sub.O and a flex ground plane. Each flex signal path is electrically connected to the signal via and each flex ground plane is electrically connected to the ground via.Type: GrantFiled: December 15, 1997Date of Patent: October 12, 1999Assignee: Hewlett-Packard CompanyInventors: Hannsjorg Obermaier, Keunmyung Lee
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Patent number: 5962813Abstract: In a connection structure of a flat cable to terminals of the present invention, the conductors held by the back film of the flat cable are ultrasonic welded to the terminals of an external part. In this arrangement, even if the conductors are formed to a very thin thickness, since they are neither twisted nor separated from each other, solid-state welding can be made to target positions.Type: GrantFiled: October 24, 1997Date of Patent: October 5, 1999Assignee: Alps Electric Co., Ltd.Inventors: Ichiro Shirako, Kenichi Saiso, Akihiro Sugino
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Patent number: 5940963Abstract: The finished mass terminated end for a miniature coaxial ribbon cable is comprised of coaxial ribbon cable having an overlayer of metallic materials soldered into position, adhesive tape end portions and the insulation required by the conductor. The method of producing the mass terminated miniature coaxial ribbon cable comprises the steps necessary to produce a cable, both during the process and as a finished product that is consistently uniform in terms of the spacing of the conductors exposed and repetitive axial location without which later operations cannot be performed enmasse with a high degree of reliability and uniform appearance. The uniformity also allows termination without crossovers and shorts and improves strain relief by allowing all the conductors to become taut at the same time in order to equally share mechanical loads in a straight line motion.Type: GrantFiled: July 21, 1997Date of Patent: August 24, 1999Assignee: Tensolite CompanyInventors: Bernard R. Tolmie, Robert H. Wittemeyer
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Patent number: 5936850Abstract: A circuit board connection structure is formed by a first substrate having a first electrode pattern, a second substrate having a second electrode pattern, and a film circuit member electrically connecting the first and second electrode patterns. The film circuit member includes lead electrodes having an exposed portion partly connected to the first electrode pattern at a part of the exposed portion closer to an edge of the film circuit member. The film circuit member may further includes lead electrodes having an exposed portion partly connected to the second electrode pattern at a part of the exposed portion closer to an edge of the film circuit member. The circuit board connection structure may be incorporated in various electronic devices, including a liquid crystal display device.Type: GrantFiled: February 28, 1996Date of Patent: August 10, 1999Assignee: Canon Kabushiki KaishaInventors: Masanori Takahashi, Riichi Saito, Toshimichi Ouchi
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Patent number: 5930119Abstract: A data processing system includes a backplane and a plurality of logic boards connected to the backplane by a plurality of connectors. A set of common points is electrically coupled to the connectors by individual conductive traces between each common point and the corresponding pins of the connectors. The inductance of longer traces is reduced by merging traces near a central portion of the backplane to form a conductive region that extends to at least one connector on either side of the common points, thereby electrically shortening the longer traces. The inductance is further reduced by widening the longer traces. Longer traces are wider than shorter traces to reduce the differences in the LC products associated with each trace and, therefore, the differences in delay among the traces.Type: GrantFiled: February 26, 1998Date of Patent: July 27, 1999Assignee: Arizona Digital, Inc.Inventor: Andrew R. Berding
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Patent number: 5912435Abstract: In an electrical circuit arrangement, specifically a sequential blasting system as used in mining, the individual circuit units 12 are contacted by a continuous flat cable 10 in such a way that each wire 16 to 19 of the cable 10 has a bared section 21 which is soldered to a contact pad 22 to 26 of a conductor pattern 15 disposed on a printed circuit board 11 which carries the circuit elements of the circuit unit 12. This not only minimizes the total number of contacts but also prevents the contact points from increasing the line resistance and prevents any faulty contact point from interrupting the line.Type: GrantFiled: December 13, 1996Date of Patent: June 15, 1999Assignee: Euro-Matsushita Electric Works AktiengesellschaftInventors: Herbert Elsinger, Johannes Oberndorfer, Friedrich Plappert, Shigeru Tajima
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Patent number: 5901923Abstract: A rolling gimbal harness for interconnecting between a gimbal mounted electronics assembly and a near gimbal electronics assembly in an airborne missile. The harness negotiates the dynamic range of the gimbal while exerting very little spring torque and friction. The harness is a flat ribbon of many shielded twisted wire pairs embedded in a highly flexible insulation material. The twisted wire pairs are terminated in very small connectors with pins having 0.025 spacing. The harness includes a pre-formed arcuate region which follows a circumferential path defined by the periphery of the gimbal platform.Type: GrantFiled: September 5, 1997Date of Patent: May 11, 1999Assignee: Hughes Electronics CorporationInventors: Quenten E. Duden, Wayne L. Sunne, Rene D. Perez, Ronald P. Lera
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Patent number: 5900587Abstract: A method and apparatus are disclosed in which a continuous elongated length of multi-conductor flat ribbon cable having a plurality of continuous signal and ground conductors for serially interconnects a plurality of terminal connectors. The signal and ground conductors include signal and ground wires which are disposed along the length of the cable in a predetermined arrangement with insulation material covering the wires. The insulation material is removed at predetermined positions along the length of the cable exposing the signal and ground wires for attachment to the terminal connectors.Type: GrantFiled: December 18, 1996Date of Patent: May 4, 1999Inventors: Douglas E. Piper, Sam S. Shasteen, David C. Howard, Clifford L. DeYoung, Marvella A. Dickerson, William J. Ricket
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Patent number: 5900588Abstract: A ribbon cable with improved skew control has a plurality of substantially parallel longitudinal conductors lying in a single plane, with insulation encasing the plurality of conductors. The insulation defines first and second outer surfaces which are substantially parallel to the plane of the plurality of conductors. A first sheet of extensible metallic foil is positioned adjacent the first outer surface of the insulation, and a second sheet of extensible metallic foil is positioned adjacent the second outer surface of the insulation. A third sheet of metallic foil is wrapped around substantially all cross-sectional sides of the plurality of conductors, insulation, and first and second sheets of metallic foil to provide a continuous electromagnetic shield around the conductors. A flexible jacket may be provided on the cable to protect the assembly.Type: GrantFiled: July 25, 1997Date of Patent: May 4, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Denis Springer, James H. Voth, John W. Benedict
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Patent number: 5896285Abstract: An apparatus for interconnection in a voltage-stiff converter is provided. The converter has at least one phase leg with at least two current valves. The apparatus connects a current valve with a respective pole conductor. A cable extends between an end of the phase leg and a capacitor which defines a direct voltage. The cables attached to different poles are arranged close beside each other and are made of an insulation layer of polymer base which surrounds a conductor.Type: GrantFiled: September 16, 1997Date of Patent: April 20, 1999Assignee: Asea Brown Boveri ABInventors: Olle Ekwall, Henrik Spjut
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Patent number: 5885710Abstract: A flexible strip transmission line is disclosed. The flexible strip transmission lines consists of a plurality of flexible layers enabling the transmission line to be folded or repeatably bent. The central layer consists of a flexible dielectric material. On opposing side of the dielectric layer are first and second flexible ground planes formed of a metalized fabric. The flexible ground plane layers are bonded to the dielectric material using a bonding agent such as silicone adhesive. An abrasion resistant material is connected to the outer surface of the flexible ground plane layers to provide a protective exterior shell.Type: GrantFiled: March 26, 1997Date of Patent: March 23, 1999Assignee: Ericsson, Inc.Inventors: James D. MacDonald, Jr., Walter M. Marcinkiewicz
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Patent number: 5872334Abstract: A high-speed cable includes first and second coaxial conductor sets which are disposed in mirror image fashion within a carbon-impregnated polymer jacket. Each coaxial conductor set includes a wire core surrounded by a dielectric layer and a ground conductor disposed along side the dielectric layer. The wire core, the dielectric layer and the ground conductor are themselves surrounded by a conductive shield layer. In addition to assisting in bleeding off accumulated electric charge, the polymer jacket also preserves conductor set alignment and planarity especially following handling, cutting, trimming and stripping operations. The cable is excellent for high-speed applications, is easily routed and preserves its electrical properties under various field conditions.Type: GrantFiled: March 14, 1997Date of Patent: February 16, 1999Assignee: International Business Machines CorporationInventor: William J. Trazyik
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Patent number: 5847323Abstract: An electrical cable for connecting transient voltage surge suppressers to ectrical power panels. A strip of electrically conductive foil defines a longitudinal axis, with a length of an electrical conductor electrically attached to the metallic foil along the longitudinal axis. The strip of electrically conductive foil and the length of an electrical conductor are covered by an insulating material. For impedance matching purposes, triangular sections can be removed from the ends of the electrically conductive foil at the time of installation.Type: GrantFiled: April 2, 1996Date of Patent: December 8, 1998Assignee: The Regents of the University of California Office of Technology TransferInventors: Matthew M. Murray, Dennis H. Wilfong, Ralph E. Lomax
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Patent number: 5837940Abstract: A nonuniform dielectric is located proximate to a conductive surface, the dielectric being substantially nonuniform with respect to the surface area of that conductive surface. If there are plural closely spaced conductors in a structure, then the nonuniform dielectric is located outside the space between these closely spaced conductors. Making the proximate dielectric nonuniform instead of uniform can provide advantages in better electrical performance for the proximate conductor.Type: GrantFiled: May 12, 1997Date of Patent: November 17, 1998Inventor: J. Peter Moncrieff
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Patent number: 5834701Abstract: Flat cables 12 are arranged on a plane, and insulating sheaths 11 are fused and connected at ends of the flat cables 12 to form a first fused portion 16. A second fused portion 17 is formed next to the first fused portion 16. Further, the insulating sheaths 11 are fused and connected in intermediate positions of the respective flat cables 12, thereby forming a third fused portion 19. The first fused portion 16 strengthens the connection of a flat multiple-core cable at its opposite ends without fusing and adhering a tape thereto. The second fused portion 17 prevents the flat multiple-core cable from being bent during the insertion into a terminal in an equipment. After the insertion, the second fused portion 17 having a sufficient flexibility permits the flat multiple-core cable to be bent near the opening of the terminal.Type: GrantFiled: December 18, 1995Date of Patent: November 10, 1998Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kazuhito Saka, Tetsuya Iwasaki
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Patent number: 5834700Abstract: An electrical circuit arrangement includes at least three adjacent spaced-apart, elongate parallel conductors. Specifically, a middle conductor has two oppositely facing first and second surfaces. A left conductor has a surface facing the first surface of the middle conductor to define a first electrical coupling. A right conductor has a surface facing the second surface of the middle conductor to define a second electrical coupling. The shape of the facing surfaces between the left conductor and the middle conductor is different from the shape of the facing surfaces between the right conductor and the middle conductor. Therefore, the electrical characteristics of the first electrical coupling is different from the electrical characteristics of the second electrical coupling.Type: GrantFiled: January 3, 1997Date of Patent: November 10, 1998Assignee: Molex IncorporatedInventor: Augusto P. Panella
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Patent number: 5834698Abstract: A composite cable with built-in signal an power cables is mainly used as a control cable for a machine tool and the like. The composite cable contributes to reduced cost, downsizing, higher reliability and higher safety, which are obtained because only a single cable needs to be laid, instead of the conventional cable, which requires multiple cables to be laid. In the composite cable with the built-in signal and power cables, a flat signal cable formed by a plurality of insulating cores arranged in parallel in the lengthwise direction, and having alternately repeated combined portions and separate portions is spirally wound into a roll around one or more power cables provided in the center of the composite cable. The power cables each have a large conductor size. A first shield is optionally provided around the flat signal cable. A second shield is optionally provided around the power cables. A sheath is provided around the flat signal cable or the first shield.Type: GrantFiled: June 27, 1997Date of Patent: November 10, 1998Assignees: Mitsuba Corporation, Oki Electric Cable Co., Ltd.Inventors: Isao Izui, Tetsuo Imamura, Takaharu Shimamune, deceased, Yasomi Tojima, Keiji Takahashi
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Patent number: 5824959Abstract: A flexible electric cable (1) has a conductor (2,3) and a fiber layer (4,5) of electrically conductive fibers which are in contact therewith. A cable of this type (1) is particularly suitable for electrical connection between two components that can move In relation to each other, one of which carries numerous activating elements, which may be controlled by voltage pulses. In this way, cables which are under stress through vibration, bending and tension stress, etc., can retain their function over a longer period.Type: GrantFiled: October 25, 1996Date of Patent: October 20, 1998Assignee: Karl Mayer Textilmachinenfabrik GmbHInventors: Kresimir Mista, Hans Juergen Hoehne
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Patent number: 5821465Abstract: A joint section is provided which connects a flat cable having a plurality of conductive lines with a plurality of lead wires to a plurality of joint terminals. A first end of each of the joint terminals is formed in compliance with a pitch between the two adjacent conductive lines and the second end of the joint terminals is formed in compliance with a pitch between two adjacent lead wires. Each conductive line is held between the first end of the corresponding one of the joint terminals and an auxiliary terminal placed on the conductive line and connected by a welding operation. The second end of the joint terminal is connected with a conductor of the corresponding one of the lead wires.Type: GrantFiled: May 23, 1996Date of Patent: October 13, 1998Assignee: Yazaki CorporationInventors: Yoshiyuki Tanaka, Masataka Suzuki, Hiroyuki Ashiya, Nobuyuki Tsujino, Hidehiro Ichikawa
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Patent number: 5821467Abstract: The present invention relates to a flat-type communication cable for carrying frequencies in excess of 4 Mhz. The cable has a plurality of longitudinally extending conductor passageways positioned side-by-side and preferably at least four passageways such that there are two end longitudinal passageways and a plurality of side-by-side intermediate passageways. Each passageway has a longitudinally extending opening which opens to an adjacent passageway. There are twisted pair conductors loosely located in each of the passageways with not more than one twisted pair conductor being in each passageway. Each twisted pair conductor has a cross-sectional envelope area less than a cross-sectional envelope area of the passageway in which the twisted pair is contained.Type: GrantFiled: September 11, 1996Date of Patent: October 13, 1998Assignee: Belden Wire & Cable CompanyInventors: Douglas D. O'Brien, Thomas L. Rodeghero, Robert D. Kenny
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Patent number: 5817973Abstract: An electrical cable assembly in which the conductive and dielectric elements are arranged in a composite with a conductive I-beam shaped geometry in which the conductive element is perpendicularly interposed between two parallel dielectric and ground plane elements. Low cross talk and controlled impedance are found to result from the use of this geometry.Type: GrantFiled: June 12, 1995Date of Patent: October 6, 1998Assignee: Berg Technology, Inc.Inventor: Richard A. Elco
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Patent number: 5814769Abstract: Ribbon cable with cable conductors arranged next to each other with a cable shield and with at least one contact element provided for electrical contacting of cable shield on the outside of ribbon cable and for electrical contacting by a contact spring of a plug-in connector that accepts ribbon cable or a contact surface of an Electromagnetic Interference (EMI) housing that accepts ribbon cable. Electrical connection between the cable shield and a plug-in connector or EMI housing can be produced via the contact spring or the contact surface.Type: GrantFiled: November 26, 1996Date of Patent: September 29, 1998Inventors: Anders Karlstrom, Andrea Wagner, Thomas Meschwitz
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Patent number: 5810094Abstract: In a data storage device, a ribbon interconnect for electrically connects a read/write head to an electrical circuit component. The read/write head id defined by separate read and write transducer elements. The interconnect has at least one carrying medium; and at least three conductors captured by the carrying medium in a coplanar arrangement. The at least three conductors define asymmetrical pitches. Each pair of the at least three conductors define a predetermined complex impedance. The individual complex impedances are not equal. The carrying medium may be a polymeric film. The at least three conductors are substantially cylindrically shaped and may be adhesively captured by the carrying medium. The ribbon interconnect may include at least one conductive ground plane. An insulation material may be disposed about each of the at least three conductors.Type: GrantFiled: May 9, 1996Date of Patent: September 22, 1998Assignee: W. L. Gore & Associates, Inc.Inventors: Matt C. Kesler, J. Scott Reynolds
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Patent number: 5811735Abstract: A flat, fine pitch cable assembly includes an improved cable profile to assist in the alignment with an insulation displacement connector. The improved profile has enlarged ridges which encompass multiple conductors thereby providing a surface which is more pronounced and therefore more suitable for alignment with an insulation displacement connector and the contacts supported thereby.Type: GrantFiled: November 22, 1996Date of Patent: September 22, 1998Assignee: Thomas & Betts CorporationInventor: David Quiroz
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Patent number: 5804768Abstract: A flat, surface mounted, flexible, multi-purpose wire is disclosed. The flat wire has a plurality of flat elongated conductors spaced apart in a generally parallel relationship. Each of the flat conductors includes a plurality of copper layers. An adhesive material separates the flat conductors and an insulation layer surrounds the flat conductors and the adhesive material, with the adhesive material bonding to the insulation layer. A cross-sectional height of the flat conductors and insulation layer is such that the multi-purpose wire will blend in with the surface when painted or after wallpaper is applied.Type: GrantFiled: January 3, 1997Date of Patent: September 8, 1998Inventor: Robert Jay Sexton
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Patent number: 5798486Abstract: A casing 14 for a junction included in a flat cable 10, e.g. for a trigger stage of a sequential blasting system, consists of two casing portions 12, 13 adapted to be fixed to each other by screwing within the lead-through regions of the cable. The casing portions 12, 13 constitute cramping areas for fixing the cable 10 to the casing 14 in a direct, non-positive way, wherein the screws 23 which interconnect the two casing portions 12, 13 at the same time create the cramping pressure. An additional positive engagement between the cable 10 and the casing 14 is achieved by engagement between a tube 25 which receives the screw 23 and a hole 29 provided in a center web 28 of the cable. Tensile strain occurring within the cable 10 is thus diverted via the casing 14 around the electrical equipment provided in the casing and soldered to the wires 19 of the cable 10. Even under high tensile forces, the soldering points are thus not exposed to any strain.Type: GrantFiled: December 10, 1996Date of Patent: August 25, 1998Assignee: Euro-Matsushita Electric Works AktiengesellschaftInventors: Herbert Elsinger, Johannes Oberndorfer, Friedrich Plappert
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Patent number: 5767442Abstract: A cable assembly includes a plurality of insulated wires that are arranged in groups of one or more wires with adjacent pairs of the groups being interconnected at any given longitudinal location over the length of the cable. Therefore, the cable defines spaced attachment zones and unattached zones for the groups of wires along the length of the cable with each of the attachment zones including the interconnection of only a single pair of the groups of wires, successive attachment zones being spaced by a respective unattached zone and successive attachment zones interconnecting alternating pairs of the groups of wires. All of the wires are preferably encased in a flexible jacket having a substantially circular cross-section. With this arrangement, the wires extend for the length of the cable without skew and yet the overall cable is extremely flexible.Type: GrantFiled: December 22, 1995Date of Patent: June 16, 1998Assignee: Amphenol CorporationInventors: Donald Eisenberg, Carl S. Booth, William H. Pendleton
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Patent number: 5760340Abstract: A woven transmission cable formed of a plurality of conductor wires arranged in side-by-side relationship forming an array which extends along a single plane. Coating the conductor wires with a self lubricating insulating material and separating them with warp yarns which are located between adjacent ones thereof. Weaving a weft yarn, formed also of a self lubricating material, to pass alternately over and under the warp yarns and the wires of the array, forming a woven structure in which the wires are capable of longitudinal adjustment relative to the warp yarns and the weft yarns. The longitudinal adjustment allows the cable to be shaped into an arcuate configuration while maintaining the wires along a single plane.Type: GrantFiled: September 5, 1996Date of Patent: June 2, 1998Assignee: Woven Electronics CorporationInventors: Lawrence William Orr, Jr., Kathryne R. Hammett, Sharon Ledbetter Adams