With Joint Or End Structure Conductive Stress Distributing Means Patents (Class 174/73.1)
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Publication number: 20100288527Abstract: A device for controlling an electric field at a high voltage component including a resistive layer for field control, an insulating layer arranged on the resistive layer and a semi-conducting or conducting layer arranged on the insulating layer. The three layers meet at a triple point where the insulating layer ends. An interface between the resistive layer and the insulating layer makes in the triple point an angle to the semi-conducting or conducting layer of 60°-120°.Type: ApplicationFiled: June 12, 2007Publication date: November 18, 2010Inventor: Radim Lichy
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Patent number: 7825331Abstract: An electrical bushing (1) for connecting a superconducting device to a device located at ambient temperature, the bushing (1) having an electrical conductor (9) and an insulating layer (10) surrounding the electrical conductor (9). An interlayer (15) is provided between the electrical conductor (9) and the insulating layer (10) and makes it possible for the electrical conductor (9) to slide in the insulating layer (10) within a temperature range of from 70 kelvin to the ambient temperature. A field control layer (11) is also applied to the insulating layer (10).Type: GrantFiled: November 13, 2006Date of Patent: November 2, 2010Inventors: Arnaud Allais, Pierre Mirebeau
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Publication number: 20100206604Abstract: An exemplary high-voltage outdoor bushing is disclosed which includes a conductor extended along an axis, a condenser core and an electrically insulating polymeric weather protection housing molded on the condenser core. The condenser core can contain an electrically insulating tape which is wound in spiral form around the conductor. Capacitance grading insertions can be arranged between successive windings of the tape. A cured polymeric insulating matrix embeds the wound tape and the capacitive grading insertions. A moisture diffusion barrier can be incorporated inside the condenser core prior to molding the weather protection housing.Type: ApplicationFiled: April 23, 2010Publication date: August 19, 2010Applicant: ABB Research Ltd.Inventors: Jens ROCKS, Vincent Tilliette, Walter Odermatt, Willi Gerig
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Publication number: 20100200265Abstract: The present invention discloses a connector sheath (1) adapted to be used in a cable connector assembly, comprising a T-shaped main insulation bushing (102), an inner semiconductive shield layer (105) disposed in the T-shaped main insulation bushing and integrally formed with the T-shaped main insulation bushing; and an outer semi-conductive shield layer (101) disposed on an outer surface of the T-shaped main insulation bushing and integrally formed with the T-shaped main insulation bushing. The T-shaped main insulation bushing is generally made of an elastic insulation material having a dielectric constant value in the range from about 5 to about 15. The present invention also discloses a cable connector assembly having a connector sheath.Type: ApplicationFiled: August 28, 2008Publication date: August 12, 2010Inventors: Huo Ying Lu, Qi Su
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Publication number: 20100175907Abstract: A polymer bushing includes a conductor bar, a conductor insertion hole at a lower end, a rigid insulator around the outer circumference of the conductor bar and having a receiving port for a cable termination, a polymer covering around 4 the outer circumference of the insulator and a number of shades 4a formed separately along the longer dimension at the outer circumference. A large diameter part is provided above the conductor insertion hole which is in the vicinity of the lower end part of the insulator. A cylindrical shielding metal fitting is concentrically embedded together with the conductor bar in the large diameter part. An electric-field stress-control layer is provided at the interface between the large diameter part and the polymer covering.Type: ApplicationFiled: June 13, 2008Publication date: July 15, 2010Applicant: SWCC SHOWA CABLE SYSTEMS CO., LTD.Inventors: Kazuhisa Adachi, Nobuyuki Sema, Hitoshi Shintate, Miyuki Ogishima, Junichi Shinagawa
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Patent number: 7745726Abstract: An assembly structure is provided. The assembly structure includes a first substrate, a second substrate and a medium layer disposed between the first and second substrates. The medium layer includes a side edge, and the second substrate includes at least one lead wire. When the second substrate is disposed on the medium layer, the lead wire of the second substrate is relatively oblique to the side edge of the medium layer.Type: GrantFiled: May 22, 2008Date of Patent: June 29, 2010Assignee: Raydium Semiconductor CorporationInventors: Ming-Te Lin, Chin-Yung Chen
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Patent number: 7728227Abstract: The present invention relates to a method for covering an elongate object in particular an electric cable or a pipe. The method includes providing a covering assembly which includes a tubular elastic covering element having at least one end which is folded to define at least one backward folded portion and at least one forward folded portion; a first supporting element which is arranged radially internal to the covering element and which holds the covering element in a radially stretched condition, and a second supporting element which is coaxially arranged around the first supporting element, the second supporting element holding said forward folded portion of the tubular elastic covering element in a radially stretched condition; removing the first supporting element to allow the sleeve to gradually collapse onto the elongate object.Type: GrantFiled: June 25, 2004Date of Patent: June 1, 2010Assignee: Prysmian Cavi E Sistemi Energia SRLInventors: Francesco Portas, Ubaldo Vallauri
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Patent number: 7709738Abstract: The invention relates to an electrical bushing serving to make a connection at ambient temperature to a superconductor element situated in an enclosure at cryogenic temperature. The electrical bushing passes successively through an enclosure at intermediate temperature between ambient temperature and cryogenic temperature, and an enclosure at ambient temperature, and it comprises a central electrical conductor surrounded by an electrically insulating sheath. According to the invention, an electrically conductive screen connected to ground potential surrounds the insulating sheath over a section that extends from the end of the bushing that is in contact with the enclosure at cryogenic temperature at least as far as the junction between the enclosure at intermediate temperature and the enclosure at ambient temperature. The invention is more particularly applicable to making a connection to a superconductor cable.Type: GrantFiled: March 9, 2006Date of Patent: May 4, 2010Assignee: NexansInventors: Pierre Mirebeau, Nicolas Lallouet, Sebastien Delplace, Regis Lapierre
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Patent number: 7674979Abstract: The invention relates to a synthetic material end for a DC electric cable. In the invention, the synthetic material end includes a composite insert that is placed between the inner insulator and the outer insulating sleeve of the cable, the insert generally being in the form of a sheath surrounding the inner insulator over a partially-stripped portion of the cable, and being made up of a resistive portion of high resistivity, and of a semi-conductive portion of lower resistivity, the interface between said resistive and semi-conductive portions forming a deflector, the end of the resistive portion that is remote from the deflector being electrically connected to the central conductor of the cable, and the end of the semi-conductive portion that is remote from the deflector being electrically connected to the outer semi-conductor of the cable. Application to making connections to high-voltage electric cables.Type: GrantFiled: April 16, 2008Date of Patent: March 9, 2010Assignee: NexansInventors: Hakim Janah, Pierre Mirebeau, Josef Cardinaels, Francois Gahungu, Jerome Matallana
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Patent number: 7633741Abstract: Apparatus, method, and system for rigidly supporting a switchgear bus assembly through the use of one or more support plates, thereby providing the primary support for the other active modules and bushings.Type: GrantFiled: April 23, 2007Date of Patent: December 15, 2009Assignee: Cooper Technologies CompanyInventors: David Charles Hughes, Brian Todd Steinbrecher, Dan Wycklendt, Timothy A. Myers
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Publication number: 20090071684Abstract: The present invention discloses a geometry electrode in a shed stress cone of a high voltage power cable termination, one end of the geometry electrode being leaded into a conductor of the power cable and the other end being leaded into a composite insulator cladding the conductor, the composite insulator having a plurality of shed insulators formed of umbrella shape extending outwards, wherein the geometry electrode has a varying curvature radius along a direction from the conductor of the power cable to the composite insulator, with the curvature radius increasing gradually towards the composite insulator, and the geometry electrode extends at least to the position above the shed insulator. The present invention also discloses a shed stress cone and a high voltage power cable using the geometry electrode.Type: ApplicationFiled: April 20, 2007Publication date: March 19, 2009Inventor: Ming Zhang
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Patent number: 7495172Abstract: A cable sealing end includes a base fitting configured for mounting on a base; a top fitting configured for securing an overhead conductor; an insulating body made of polymeric material; a conductive connection device configured to form a connection between a cable conductor and the top fitting; and a supporting element. The supporting element includes an elongated metal body; a top plate disposed on the elongated metal body and securable to the top fitting; and a metallic cylindrical structural component. The structural component projects into an interior of the insulating body and has a base flange disposed adjacent to the base fitting. The structural component has a length of one quarter to one third of a length of the insulating body. An entire length of the elongated metal body and the structural component, with the exception of the base flange, are embedded in the insulating body.Type: GrantFiled: August 3, 2007Date of Patent: February 24, 2009Assignee: NKT Cables GmbHInventor: Uwe Amerpohl
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Patent number: 7491885Abstract: It is intended to achieve the weight reduction, sliming, and downsizing of bushings, compatibility of types of bushings, and simplification of operating steps. A polymer bushing comprises a conductor draw-out bar (1) having a conductor insertion hole (1a) in the lower end, a hard insulation sleeve (2) installed around the outer periphery of the conductor draw-out bar (1), a polymer clad body (3) installed around the outer periphery of the insulation sleeve (2), and an electric field stress-control layer installed on the interface between the insulation sleeve (2) and the polymer clad body (3). The insulation sleeve (2) comprises a large-diameter insulation sleeve (2a) installed around the outer periphery of the lower region of the conductor draw-out bar (1), and a small-diameter insulation sleeve (2b) installed around the outer periphery of a portion of the conductor draw-out bar (1) excluding the front end.Type: GrantFiled: September 16, 2004Date of Patent: February 17, 2009Assignee: SWCC Showa Cable Systems Co., Ltd.Inventors: Kazuhisa Adachi, Nobuyuki Sema
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Publication number: 20090016043Abstract: A telecommunications system including a frame to which telecommunications equipment is mounted. The frame defines a patch panel region and an active equipment region. Patch cords are interconnected between the patch panel region and the active equipment region. The system further includes a slack storage panel that stores patch cord slack. The slack storage panel defines a single cable routing pathway. The patch cords are routed through the slack storage panel such that no portion of the length of each patch cord overlaps itself. In systems including both copper and fiber cables, the copper cables are routed separately from the fiber cables.Type: ApplicationFiled: October 1, 2007Publication date: January 15, 2009Applicant: ADC Telecommunications, Inc.Inventors: Kevin L. Hruby, Glen Cordle, Cindy S. Walters, Michael Kenneth Barth
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Publication number: 20090000803Abstract: The invention relates to a synthetic material end for a DC electric cable. In the invention, the synthetic material end includes a composite insert that is placed between the inner insulator and the outer insulating sleeve of the cable, the insert generally being in the form of a sheath surrounding the inner insulator over a partially-stripped portion of the cable, and being made up of a resistive portion of high resistivity, and of a semi-conductive portion of lower resistivity, the interface between said resistive and semi-conductive portions forming a deflector, the end of the resistive portion that is remote from the deflector being electrically connected to the central conductor of the cable, and the end of the semi-conductive portion that is remote from the deflector being electrically connected to the outer semi-conductor of the cable. Application to making connections to high-voltage electric cables.Type: ApplicationFiled: April 16, 2008Publication date: January 1, 2009Inventors: Hakim Janah, Pierre Mirebeau, Josef Cardinaels, Francois Gahungu, Jerome Matallana
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Patent number: 7470461Abstract: Provided is a method of manufacturing a printed circuit board. In an embodiment, the method includes forming a prepreg layer via a reel method, forming a conductive film for forming a circuit pattern on at least one surface of the prepreg layer; and forming a predetermined circuit pattern on the conductive film. In an embodiment, the prepreg layer has a thickness of at most about 0.15 mm and contains a fiber material and a resin material. In an embodiment, the content of the resin material in the prepreg layer is about 70% or less by volume. In an embodiment, the prepreg layer is composed of at least one prepreg layer.Type: GrantFiled: October 5, 2005Date of Patent: December 30, 2008Assignee: Samsung Techwin Co., Ltd.Inventors: Chang-soo Jang, Dong-kwan Won, Hyoung-ho Roh, Jae-chul Ryu
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Publication number: 20080289848Abstract: The present invention relates to a system for data transmission over an electricity distribution network. The system comprises an electrical apparatus having a shielded electrical cable connected thereto. The cable has a core surrounded by a metallic sheath and armour surrounding the metallic sheath. The armour is disengaged from around the metallic sheath at a position where the cable enters the apparatus and is supported relative to the apparatus at a position spaced from that position such that a portion of the metallic sheath is exposed.Type: ApplicationFiled: April 28, 2006Publication date: November 27, 2008Applicant: Manx Electricity AuthorityInventors: Stephen McGhee, Alfred Jones, Matthew Patrick
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Patent number: 7414195Abstract: The invention relates to a synthetic material end for a DC electric cable. In the invention, the synthetic material end includes a composite insert that is placed between the inner insulator and the outer insulating sleeve of the cable, the insert generally being in the form of a sheath surrounding the inner insulator over a partially-stripped portion of the cable, and being made up of a resistive portion of high resistivity, and of a semi-conductive portion of lower resistivity, the interface between said resistive and semi-conductive portions forming a deflector, the end of the resistive portion that is remote from the deflector being electrically connected to the central conductor of the cable, and the end of the semi-conductive portion that is remote from the deflector being electrically connected to the outer semi-conductor of the cable. Application to making connections to high-voltage electric cables.Type: GrantFiled: March 9, 2006Date of Patent: August 19, 2008Assignee: NexansInventors: Hakim Janah, Pierre Mirebeau, Josef Cardinaels, Francois Gahungu, Jerome Matallana
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Publication number: 20080132122Abstract: A generally circular plug and receptacle connector system for use with electronic systems and devices is provided. This system includes: a plug component and a receptacle component. The plug component further includes: a housing having an internal channel formed therein for receiving a length of stripped wire; a shielded conduit attached to the housing, wherein the shielded conduit further includes a chamber formed therein; a plug body disposed within the shielded chamber; and a plurality of conductive pins disposed within the plug body, wherein the conductive pins are adapted on one end to be coupled with the length of stripped wire.Type: ApplicationFiled: December 1, 2006Publication date: June 5, 2008Applicant: TYCO ELECTRONICS CORPORATIONInventors: Lawrence John Brekosky, Keith Edwin Miller
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Publication number: 20080121408Abstract: The present invention relates to a method for covering an elongate object (11, 12), in particular an electric cable or a pipe. The method comprises the steps of.Type: ApplicationFiled: June 25, 2004Publication date: May 29, 2008Inventors: Francesco Portas, Ubaldo Vallauri
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Patent number: 7351908Abstract: An adaptor for controlling electrical stress in an electrical power cable includes a longitudinal insulative member and a semi-conductive member in contacting engagement with an end of the insulative member. A portion of the insulative member overlays a portion of the electrical insulation surrounding the electrical conductor, and a portion of the semi-conductive member overlays a portion of the semi-conductive shield.Type: GrantFiled: August 18, 2006Date of Patent: April 1, 2008Assignee: 3M Innovative Properties CompanyInventors: Carl J. Wentzel, Nga K. Nguyen, William L. Taylor
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Patent number: 7345241Abstract: A clamp that guides and secures cables in a cable management system. The clamp includes a body member and latch members integrally formed with the body member. The body member includes at least one cable guide and the latch members include outwardly extending arms. The latch members pivot from an open position to a closed position over the body member. When the latch members are in the closed position, each arm is disposed over a cable guide to secure a cable positioned therein.Type: GrantFiled: January 18, 2005Date of Patent: March 18, 2008Assignee: Panduit Corp.Inventors: Jack E. Caveney, Jason O'Young
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Publication number: 20080029289Abstract: A cable sealing end includes a base fitting configured for mounting on a base; a top fitting configured for securing an overhead conductor; an insulating body made of polymeric material; a conductive connection device configured to form a connection between a cable conductor and the top fitting; and a supporting element. The supporting element includes an elongated metal body; a top plate disposed on the elongated metal body and securable to the top fitting; and a metallic cylindrical structural component. The structural component projects into an interior of the insulating body and has a base flange disposed adjacent to the base fitting. The structural component has a length of one quarter to one third of a length of the insulating body. An entire length of the elongated metal body and the structural component, with the exception of the base flange, are embedded in the insulating body.Type: ApplicationFiled: August 3, 2007Publication date: February 7, 2008Inventor: Uwe Amerpohl
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Patent number: 7307216Abstract: There is provided a wire harness excessive length absorbing device that allows a slim case body thereof, and provides a large installation space for other components. The wire harness excessive length absorbing device includes a case (30) for receiving a wire harness (25) having an inlet (34) and an outlet (35) for the wire harness (25); an urging member (23) for urging the wire harness (25) toward an inside of the case (30); and a harness roller (15) on which the wire harness (25) being rolled, said harness roller (15) reciprocally moving under acting forth of the urging member (23), a harness guide (17) mounted on the outlet (35) and curved toward the inlet (34) for guiding the harness (25) to the outside of the case (30). The harness guide (17) is curved in the same direction as a direction of the wire harness being rolled (25) on the harness roller (15). The outlet (35) is disposed in a direction perpendicular to that of the inlet (34).Type: GrantFiled: July 27, 2004Date of Patent: December 11, 2007Assignee: Yazaki CorporationInventor: Tomoyasu Terada
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Patent number: 7307215Abstract: There is provided a wiring harness slack absorbing device (10) being able to receive a folded part (51) of a wiring harness (25) without protrusion on a case body (31), so that a slim case is used for the device (10). The device (10) includes the case (30) for receiving the wiring harness (25) having an inlet 34 and an outlet (35) for the wiring harness (25), an urging member (23) for pulling the wiring harness (25) into the case (30), and a harness roller (15) moving reciprocally under an urging force of the urging member (23). The inlet 34 is disposed perpendicular to the outlet (35). The space for receiving folded part (20) is provided between the case (30) and the urging member (23). The folded part (51) of the wiring harness (25) is led through the inlet and received in the space for receiving folded part (20).Type: GrantFiled: July 27, 2004Date of Patent: December 11, 2007Assignee: Yazaki CorporationInventor: Tomoyasu Terada
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Publication number: 20070275195Abstract: A support coil for radially supporting an elastically expanded tube material includes an extruded profile body consisting of a plurality of windings wound about a longitudinal axis of the support coil. Each of the windings has opposing end faces. A ratchet arrangement joins the end faces of the adjacent windings with respect to the longitudinal axis of the support coil. A tongue and groove arrangement joins the end faces of the adjacent windings with respect to a radial direction of the support coil. The tongue and groove arrangement is spatially separated from the ratchet arrangement.Type: ApplicationFiled: May 3, 2007Publication date: November 29, 2007Inventors: Thilo Simonsohn, Christian Heindl
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Patent number: 7265293Abstract: The resilient sleeve member defines an axially extending inner passage. The holdout device includes a core mounted in the inner passage of the sleeve member. The core defines a core passage to receive the elongate substrate and has at least first and second sections. The first and second sections are arranged in a supporting position such that the core maintains the sleeve member in a radially expanded condition. The first and second sections are arranged for relative telescoping movement from the supporting position to a releasing position to permit at least a portion of the sleeve member to radially contract from the radially expanded position to a radially recovered position.Type: GrantFiled: March 24, 2005Date of Patent: September 4, 2007Assignee: Tyco Electronics CorporationInventors: Sherif I. Kamel, Mahmoud K. Seraj, George W. Pullium, III
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Patent number: 7251881Abstract: A method for delivering a geometric type stress relief element to a terminated electrical cable is provided. The cable contains a conductor surrounded by at least one coaxial layer of insulator, semiconductor, grounded wires and cable jacket. First, the terminated cable is tapered to expose a portion of the conductor so as to protrude beyond the insulation, which protrudes beyond semiconductor, which protrudes beyond the conductive wires. A geometric stress cone is preloaded onto a cold shrink tube. The terminated, tapered cable is inserted into the cold shrink tube. The cold shrink tube is removed and the geometric stress cone collapses onto the tapered cable. The cable is rated for supplying high voltage.Type: GrantFiled: October 14, 2004Date of Patent: August 7, 2007Assignee: 3M Innovative Properties CompanyInventors: Nga K. Nguyen, Todd H. Richardson, William L. Taylor, Ming Zhang
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Patent number: 7216426Abstract: A method for forming a separable electrical connector having an electrical interface surface includes the steps of molding an interface shell from a thermoplastic, placing the interface shell against an electrical interface portion of a mold cavity and molding a housing within the mold cavity. When placed in the mold cavity, the interface shell provides a barrier to the mold cavity interface portion, wherein the housing is isolated from the electrical interface potion of the mold cavity by the interface shell. The shell has an inner surface and an outer surface and the housing is bonded to one of the inner and outer surfaces, wherein the other of the inner and outer surfaces of the shell defines the electrical interface surface of the electrical connector.Type: GrantFiled: March 22, 2006Date of Patent: May 15, 2007Assignee: Thomas & Betts International, Inc.Inventors: Alan D. Borgstrom, Frank M. Stepniak
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Patent number: 7191496Abstract: An appliance is provided for terminating high temperature conductors. The appliance includes a clevis member, a first set of aluminum elongate helically formed reinforcement members, and first and second U-shaped dead-end members having leg portions formed of an aluminum material and an aluminum-coated metal material, respectively. The reinforcement members and first and second dead end members are applied to the associated conductor in a layered relationship in a manner to establish a phase ordering of aluminum alloy and aluminum covered steel wire materials over the circumference of the conductor. The combination of aluminum alloy and aluminum coated steel wire materials provides desired strength while maintaining an operating temperature of the appliance lower than an operating temperature of the associated conductor.Type: GrantFiled: February 17, 2005Date of Patent: March 20, 2007Assignee: Preformed Line Products CompanyInventors: John J. Olenik, David C. Sunkle, Robert Whapham
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Patent number: 7170004Abstract: The surrounding body (1) serves to surround the end, a branching or a connecting point of a high-voltage cable. It has an element (3) with a nonlinear current-voltage characteristic line, which serves to control the electric field in the surrounding area. The field control element (3) contains a polymer and a filler embedded in the polymer und containing microvaristors, as well as at least a hollow body section extending along an axis (2) and designed flat, with an axially symmetrical inner surface conductive by deforming the surrounding body (1) to an outer surface of the cable. To ensure good field control in cables, which are operated at high voltages, the inner surface of the hollow body section is designed as a variation of the outer surface of the cable and in such a way that the field control in the surrounding area is achieved by altering the number of microvaristors per surface unit as a result of expansion and/or shrinking of the hollow body section after deforming.Type: GrantFiled: January 29, 2003Date of Patent: January 30, 2007Assignee: ABB Schweiz AGInventors: Hansjoerg Gramespacher, Felix Greuter, Michael Hagemeister
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Patent number: 7109422Abstract: A polymer jacket tube includes a conductor bar which has a conductor insertion hole at its lower end, a rigid insulation sleeve around the outer periphery of the conductor bar, and a polymer covering on the outer periphery of the insulation sleeve. The insulation sleeve includes a large-diameter insulation sleeve at the lower, outer peripheral portion of the conductor bar, and a small-diameter insulation sleeve surrounding the outer peripheral portion of the conductor bar except for the distal end thereof. An embedded metal fitting for electrical stress relief is buried in the continuous portion of the large-diameter insulation sleeve and the small-diameter insulation sleeve. A cone-shaped reception port receives the stress cone of a cable terminal and is located at the lower end of the large-diameter insulation sleeve, which reception port is in communication with the conductor insertion hole of the conductor.Type: GrantFiled: April 7, 2003Date of Patent: September 19, 2006Assignee: Showa Electric Wire & Cable Co., Ltd.Inventors: Sugita Hiroshi, Sema Nobuyuki
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Patent number: 6973721Abstract: An electrical and mechanical connection between (a) a first shielded cable including a metal sheath and electrical conductors and (b) a second cable including a ground conductor and electrical conductors, comprises a zone of interconnection between the first and second cables. In this interconnection zone, a first connection is made between the free end of the metal sheath and the free end of the ground conductor, and second connections are made between the free ends of the electrical conductors of the first cable and the free ends of the electrical conductors of the second cable, respectively. Still in the interconnection zone, the interconnected metal sheath and ground conductor have a first length shorter than second lengths of the interconnected electrical conductors of the first cable and electrical conductors of the second cable whereby, in operation, longitudinal tension in the interconnection zone is totally supported by the interconnected metal sheath and ground conductor.Type: GrantFiled: February 2, 2004Date of Patent: December 13, 2005Assignee: 6179142 Canada Inc.Inventor: Philippe Charron
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Patent number: 6864432Abstract: An elongate high voltage insulator is formed of a rod or tube of insulating material, with a pair of electrodes spaced apart longitudinally thereof. At least part, and preferably the whole of the outer surface of the insulating material is covered by a layer of material including a particulate filler of varistor powder in a matrix having a switching electrical stress-controlling characteristic that is in electrical contact with each of the electrodes. The insulator core may be made of porcelain, and the stress-controlling material may be zinc oxide.Type: GrantFiled: February 8, 2002Date of Patent: March 8, 2005Assignee: Tyco Electronics Raychem GmbHInventors: Bodo Boettcher, Ralf Lietzke, Gerold Malin, Robert Paul Glembocki, Matthew Helm Spalding
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Patent number: 6818828Abstract: A termination for an electric cable includes a conductive element, a conductive shank, an insulating body, a casing of insulating material, and electric field control means. The conductive element is not part of the electric cable. The conductive shank connects to an upper extremity of the conductive element and is adapted for connection of the termination to an electric installation. The insulating body includes a substantially-cylindrical portion surrounding a lower extremity of the conductive element and adapted for connection of the termination to the electric cable. The conductive element and the insulating body constitute a substantially-rigid assembly adapted to resist a predetermined transverse stress. The termination also includes a joining assembly having an electric connection element connecting a conductor of the electric cable and the conductive element of the termination, and a flexible joint covering the electric connection element and a length of the cylindrical portion of the insulating body.Type: GrantFiled: October 24, 2001Date of Patent: November 16, 2004Assignee: Pirelli Cavi E Sistemi S.p.A.Inventor: Dario Quaggia
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Publication number: 20040216912Abstract: An electrical fitting terminates a jacketed flexible metallic conduit. The fitting includes conductive metal components, such as a body, gland nut and ground cone. The fitting also includes non-metallic insulative components such as a sealing ring and an insulated throat. These components are formed of a high-temperature resistant material so that the fitting may be rated for high-temperature applications.Type: ApplicationFiled: March 18, 2004Publication date: November 4, 2004Applicant: Thomas & Betts International, Inc.Inventor: Robert H. Osborn
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Patent number: 6787703Abstract: A cylindrical pre-molded rubber insulation tube made by a plurality of layers using a rubber material as a base material has in a central part and at both ends of an inner periphery thereof a sheet-shaped electrode layer formed at an insde thereof with a semi-conductive rubber layer and at an outside thereof with a high-permittivity rubber layer, as an inner electrode layer configured with the semi-condutctive rubber layer to be thin and sheet-shaped and the high-permittivity rubber layer covering a vicinity of a respective distal end of the semi-conductive rubber layer, and the distal end of the semi-conductive rubber layer is rounded by a radius of curvature substantially equal to half the thickness.Type: GrantFiled: November 27, 2002Date of Patent: September 7, 2004Assignee: Fujikura Ltd.Inventors: Hiroshi Niinobe, Kazuo Watanabe
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Patent number: 6677528Abstract: An outdoor terminal is mounted at one end on a pylon. A base armature is provided fastened to a cable with an electrical feedthrough to the interior of the terminal. The cable terminal is electrically connected to a ground potential and includes a field control element and isolations at inhomogeneous potential transitions on the cable end. The electrical feedthrough is configured as a tube or a pin and is connected to the cable conductor via contract elements. The feedthrough, the insulators and the head armature form one assembly unit.Type: GrantFiled: July 26, 2002Date of Patent: January 13, 2004Assignees: ntk cables group GmbH, Tyco Electronics Raychem GmbHInventors: Uwe Amerpohl, Wolfgang Belz, Gerhard Haupt, Bernhard Schindler
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Publication number: 20030188885Abstract: A cylindrical pre-molded rubber insulation tube made by a plurality of layers using a rubber material as a base material has in a central part and at both ends of an inner periphery thereof a sheet-shaped electrode layer formed at an insde thereof with a semi-conductive rubber layer and at an outside thereof with a high-permittivity rubber layer, as an inner electrode layer configured with the semi-condutctive rubber layer to be thin and sheet-shaped and the high-permittivity rubber layer covering a vicinity of a respective distal end of the semi-conductive rubber layer, and the distal end of the semi-conductive rubber layer is rounded by a radius of curvature substantially equal to half the thickness.Type: ApplicationFiled: November 27, 2002Publication date: October 9, 2003Applicant: FUJIKURA LTD.Inventors: Hiroshi Niinobe, Kazuo Watanabe
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Patent number: 6624357Abstract: A tubular cable adapter for use in jointing and/or terminating a medium voltage medium voltage paper insulated cable is provided. The cable adapter includes an impregnating compound barrier sleeve (1), a semi-conductive layer (2) partially covering the impregnating compound barrier sleeve, and a support member (3) for maintaining the impregnating compound barrier sleeve and the semi-conductive layer in a radial expanded state, the support member being removable from said impregnating compound barrier sleeve. The tubular cable adapter also has a conductive member (4) covering, at least partially, the impregnating compound barrier sleeve (1) and the semi-conductive conductive member layer (2).Type: GrantFiled: December 19, 2001Date of Patent: September 23, 2003Assignee: NexansInventor: Josef Cardinaels
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Patent number: 6584253Abstract: Sealed cable connections can be used to connect first and second cables to a sealed cable joint. The sealed cable connection at one end of the sealed cable joint includes a cable socket body positioned within an inner region of a housing. The cable socket body includes a passageway receiving one of the cables. A seal securing member is positioned within the inner region of the housing and secured into contact with the cable socket body. At least one seal, such as a resilient metal seal, is compressed between the cable socket body and the seal securing member to seal against the inner surface of the housing. The sealed cable connection can also include a cable seal positioned around the cable and within the passageway of the cable socket body.Type: GrantFiled: February 2, 2001Date of Patent: June 24, 2003Assignee: Tyco Telecommunications (US) Inc.Inventors: Maurice Kordahi, David Giordano, Robert Stix
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Publication number: 20030102142Abstract: A rotary holder for a corrugated tube is structured such that an inner rotary body containing a corrugated tube is received in an inner portion of an outer fixing body, and an outer peripheral sliding surface of the inner rotary body moves sliding along an inner sliding surface of the outer fixing body. The inner rotary body is formed by assembling two divided rotary members each having round arch surface on an outer periphery thereof. The outer peripheral sliding surface is formed by butting butt surface of each divided rotary member against each other. Further, a cut surface retracting inside a rotation locus of the round arch surface is formed in an end portion of the round arch surface.Type: ApplicationFiled: November 13, 2002Publication date: June 5, 2003Inventors: Masaji Miyamoto, Ryoichi Fukumoto
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Patent number: 6501024Abstract: A termination for an electrical power cable includes a load carrying conductor, the termination including an insulating outer member through which the load carrying conductor, or an extension of it, runs substantially longitudinally, and means for controlling electrical stress concentrations within the outer member. Residual space within the outer member is occupied by electrically insulating solid granules. Interstices between the granules are filled with electrically insulating fluid.Type: GrantFiled: October 5, 2001Date of Patent: December 31, 2002Assignee: Pirelli Cables (2000) LimitedInventor: Ian Richard Evans
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Patent number: 6448494Abstract: An apparatus and method is provided for removing undesired coiling or twisting that has developed in a power cable attached to a robotic swimming pool cleaner during the cleaner's pre-programmed or random movement over the bottom and/or side walls of the pool. A rotatable grip assembly is permanently or removably affixed to the power cable adjacent one or both ends of the power cable that can be disconnected from the power supply or the pool cleaner. The rotatable grip assembly includes one or more bearings, at least a portion of which bearings is fixed with respect to the power cable, and a gripping member that is in contact with the one or more bearings.Type: GrantFiled: November 7, 2000Date of Patent: September 10, 2002Assignee: Aqua Products, Inc.Inventors: Gloria Erlich, Seth M. Chilton
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Patent number: 6444913Abstract: A cable terminal connector stretcher includes a pawl ring, the pawl ring having plurality of equiangularly spaced and longitudinally extended pawls, and locking loop adapted to be fastened to the pawls of the pawl ring to secure the pawl ring to a high-tension cable terminal connector.Type: GrantFiled: October 15, 2001Date of Patent: September 3, 2002Inventor: Sui Chan Kao
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Patent number: 6431783Abstract: An optical fiber connector for connecting an optical fiber cable to a ferrule comprises a tubular body having a first end portion for connection to a peripheral surface of a ferrule, a second end portion for connection to a peripheral surface of an optical fiber cable, a step portion interconnecting the first end portion to the second end portion, and a clamping portion for clamping the optical fiber cable to the ferrule. The clamping portion extends inwardly from a terminal end of the second end portion towards the central axis of the tubular body but does not project lengthwise from the terminal end of the second end portion in the direction of the central axis. The first end portion, the second end portion, the step portion and the clamping portion of the tubular body have approximately the same wall thickness.Type: GrantFiled: February 26, 1998Date of Patent: August 13, 2002Assignee: Seiko Instruments Inc.Inventors: Masahiro Nakajima, Hiroyuki Tokita, Junji Taira, Kouji Minami, Tatsuo Koshigoe, Nobuo Suzuki
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Patent number: 6422900Abstract: A connector assembly for coupling a continuous length of coaxial cable to a bulkhead is disclosed. The coaxial cable includes an insulation layer disposed around an outer conductor. The connector assembly includes a first conductive mounting member having an inner peripheral surface that is configured to mate with an outer peripheral surface of the outer conductor for a segment of the continuous length of the coaxial cable. The first conductive mounting member also includes a first bulkhead mating portion that is configured to mate with the bulkhead. The connector assembly further includes a fastener that is configured to couple the first conductive mounting member to the outer conductor of the segment of the continuous length of the coaxial cable, wherein the continuous length of the coaxial cable is uninterrupted within the connector assembly.Type: GrantFiled: September 15, 1999Date of Patent: July 23, 2002Assignee: HH Tower GroupInventor: Edward F. Hogan
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Patent number: 6420017Abstract: The present invention is for providing a rigid-printed wiring board capable of preventing the burst or void phenomenon of a copper paste, and a production method of the rigid-printed wiring board. A rigid-printed wiring board comprising copper clad laminates with a paper phenol or a paper epoxy used as a base, wherein a through hole is provided in the vicinity of a via hole for finning the copper paste, is provided.Type: GrantFiled: June 22, 2000Date of Patent: July 16, 2002Assignees: Sony Corporation, Shirato Printed Circuit Board Co. Ltd.Inventors: Yoshinari Matsuda, Tomohide Koguchi
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Patent number: 6340794Abstract: A two-part system for electrical stress control includes a conformable stress control material positioned at the shield cut edge of a prepared power cable and a stress control tube over the conformable stress control material. A second region of conformable stress control material is positioned adjacent the cut end of the insulation. Relationships are revealed which relate the permittivity and dimensional parameters of the two components.Type: GrantFiled: December 16, 1996Date of Patent: January 22, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert A. Wandmacher, Lawrence C. Chor, John T. Larson
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Patent number: 6333462Abstract: A termination for an electric cable includes a conductive element, a conductive shank, an insulating body, a casing of insulating material, and electric field control means. The conductive shank connects to an upper extremity of the conductive element and is adapted for connection of the termination to an electric installation. The insulating body includes a cylindrical portion surrounding a lower extremity of the conductive element, the cylindrical portion being adapted for connection of the termination to the electric cable, the conductive element and the insulating body constituting a rigid assembly adapted to resist a predetermined transverse stress. The termination also includes a joining assembly having an electric connection element connecting a conductor of the electric cable and the conductive element of the termination, and a flexible joint covering the electric connection element and a length of the cylindrical portion of the insulating body.Type: GrantFiled: February 9, 2000Date of Patent: December 25, 2001Assignee: Pirelli Cavi e Sistemi S.p.A.Inventor: Dario Quaggia