Class 174/106SC - Semiconducting

Subclass of Class 174 - Electricity: conductors and insulators
No. of patents: 83
Last issue date: 10/23/2007

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Number	Title	Issue Date
7285726	Subsea power cable A subsea power cable includes a conductor encompassed by a layer of high voltage insulation material including inner and outer semiconducting layers. The insulated conductor is encompassed by a number of armouring elements each consisting of fibers enclosed within a...	10/23/2007
7259491	Rotating asynchronous converter A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC network with a second frequency f2. The converter has a rotor...	08/21/2007
7238404	Thin sheet mica wedges with semi-conducting properties The present invention provides for thin sheet wedges that comprise a mica matrix impregnated with a conductive resin. The mica matrix is composed of mica flakes. The thin sheet wedge has a semi-conductive property of 500–500,000 ohms per square. In one embodiment ...	07/03/2007
7091811	Fixing member A device for absorbing axial and radial short-circuit forces in a cable-wound inductor. A fixing member includes an inner envelope surface that surrounds the cable winding of the inductor. ...	08/15/2006
7049506	Conductor system A protected conduit for use in a downhole environment, e.g. in a well, which has first and second metallic impermeable layers and an extrudate layer between the impermeable layers. A conductor extends between the two metal impermeable layers and serves for the trans...	05/23/2006
6472601	Electrically-conductive, thermally-insulating structure and method An electrically-conductive, thermally-insulating structure includes a thermally-insulating layer having a thermal conductivity of no more than about 3.5×10-3 W/hr.multidot.cm.multidot.°K and an electrically-conductive layer, applied to the th...	10/29/2002
6294256	Compositions and electric cables A composition of matter for use as dielectric shield in an electric power cable having insulation of XLPE, EPR or EPDM comprises: a base polymer which is a copolymer of ethylene with a mono-unsaturated ester; conductive carbon black in an amount to give t...	09/25/2001
6284374	Strippable semiconductive resin composition and wire and cable Disclosed are a strippable semiconductive resin composition adapted for formation of a semiconductive layer having a volume resistivity of not more than 5000 Ω.multidot.cm at room temperature, the composition comprising: a polymer component (a), with a n...	09/04/2001
6046408	Neutral conductor grounding system System neutral to earth grounding, over the entire length of an electrical cable is achieved by adding one or more strips of semi-conductive material over the helically or otherwise wound concentric neutral conductors and completing the cable jacket with ...	04/04/2000
6015629	Stress control for termination of a high voltage cable A two-part system for electrical stress control includes a non-tacky conformable stress control material that is positioned at the shield cut edge of a prepared power cable and a stress control tube over the non-tacky conformable stress control material. ...	01/18/2000
5523534	Shielded carbon lead for medical electrodes An elongated flexible lead conducts electrical biosignals from a medical electrode attached to a person's skin to a recording instrument and the lead is translucent to X-rays. The lead includes a primary center conductor formed by a bundle of conductive f...	06/04/1996
5521331	Shielded electric cable A shielded electric cable having a core including an insulated conductor. A first shielding member formed of an elongated ribbon of insulating material and a pair of elongated metal foil strips arranged in a parallel relationship with the ribbon and bonde...	05/28/1996
5486648	Power cable with longitudinal waterblock elements An electric power cable is provided having concentric neutral wires (CN wires) applied helically over the cable core construction to serve as a metallic ground shield and having a protective polymeric jacket over the CN wires. The cable is characterized i...	01/23/1996
5477011	Low noise signal transmission cable An improved low noise electrical signal transmission cable is disclosed. The cable employs an insulative layer of expanded polytetrafluoroethylene (PTFE) which is bonded in fixed relative position with a surrounding shield layer through use of an adhesive...	12/19/1995
5414213	Shielded electric cable A shielded electric cable having a core including an insulated conductor. A first shielding member formed of an elongated ribbon of insulating material and a pair of elongated metal foil strips arranged in a parallel relationship with the ribbon and bonde...	05/09/1995
5397855	Low noise cable The cable includes a conductive coating layer disposed on an internal dielectric and surrounded by a conductive screen. The cable is characterized in that said conductive coating is a conductive silicone coating and in that the dielectric is treated and t...	03/14/1995
5339038	Assembly for detecting and locating cable pinching An assembly for protecting a conduit having a core and an axial length, which length is susceptible to being pinched by a structure is disclosed. The conduit includes an insulating coating in surrounding relationship about the core, with the assembly incl...	08/16/1994
5321202	Shielded electric cable A shielded electric cable having a core including an insulated conductor. A first shielding member formed of an elongated ribbon of insulating material and a pair of elongated metal foil strips arranged in a parallel relationship with the ribbon and bonde...	06/14/1994
5313017	High-temperature, light-weight filter line cable The present invention features a new "filter line" cable having a temperature-enhancement jacket layer composed of, in various forms, a Teflon layer or fused Teflon/Kapton layers. The filter line cable has a conductive core having a primary insulation lay...	05/17/1994
5310964	Electric and communication cables A cable comprising a core enclosed in an external sheath of a char-forming low-smoke-and-fume composition is characterized by a tape of flexible mineral material, preferably a woven glass-fiber tape, wrapped round the core and by an adhesive bonding the t...	05/10/1994
5300733	Water impervious rubber or plastic insulated power cable A water impervious rubber or plastic insulated power cable, which is capable of maintaining water imperviousness for an extended period of time, is provided, which power cable comprising: a cable core having a conductor, an extruded conductor shield, a ru...	04/05/1994
5281757	Multi-layer power cable with metal sheath free to move relative to adjacent layers An electrical power cable with a stranded conductor, a semi-conductive stress control layer around the conductor, a layer of insulation around the stress control layer, a semi-conductive insulation shield layer around the layer of insulation, an imperfora...	01/25/1994
5262592	Filter line cable featuring conductive fiber shielding The present invention features a new "filter line" cable having a shield layer of metallized, high-tensile strength fibers. The filter line cable has a conductive core having a primary insulation layer. Over the primary insulation is a filtering layer mad...	11/16/1993
5262591	Inherently-shielded cable construction with a braided reinforcing and grounding layer The present invention features a new "filter line" cable of very thin construction. The thinner cable has a reinforcing mesh layer that lends physical strength to the otherwise thinner, weakened cable. Additionally, the reinforcing mesh provides grounding...	11/16/1993
5250755	X-ray conduits An X-ray cable has a plurality of elements arranged concentrically relative to one another and including from inside toward outside at least one inner conductor, an inner conducting sleeve, a high voltage isolation, an outer conducting sleeve, a screen an...	10/05/1993
5216204	Static dissipative electrical cable A static dissipative electrical cable which eliminates the build-up of triboelectric charging by having a carbon loaded outer jacket which is a semiconductor for draining off triboelectric charges. In one embodiment, the jacket material is a 1 megohm/ft s...	06/01/1993
5214243	High-temperature, low-noise coaxial cable assembly with high strength reinforcement braid A high-temperature, low-noise coaxial cable assembly with high strength reinforcement braid is depicted and described. The cable assembly has very low self-noise generation and is particularly useful for telemetry and instrumentation purposes. Also, the c...	05/25/1993
5208426	Shielded electric signal cable having a two-layer semiconductor jacket A shielded electric signal cable having at least two semiconductive jacket layers of the same or differing conductivity to cover pinholes, meet variable electrical resistance specifications, and decrease signal transfer from jacket to shield....	05/04/1993
5206459	Conductive polymeric shielding materials and articles fabricated therefrom The present invention features a new shield material useful in the fabrication of shielded wire or cable articles. The conductive core of the wire and cable is layered with a shielding wrapping tape, foil or film. A shielding insulation compound can also ...	04/27/1993
5170010	Shielded wire and cable with insulation having high temperature and high conductivity The present invention features a new type of filter line cable. The new filter line in one embodiment thereof, comprises a cable having a conductive core member. A first insulation layer is disposed over the conductive core member. A first shielding layer...	12/08/1992
5144098	Conductively-jacketed electrical cable A conductively-jacketed electrical cable which provides continuous electrical contact from a drain wire through a metal-coated tape wrapped shield, a semiconductive adhesive layer applied to the tape on the reverse side from the metal coating, to a semico...	09/01/1992
5132490	Conductive polymer shielded wire and cable The present invention features a shielded wire and cable article capable of operating more effectively in high power environments. The article generally comprises an inner conductive core of one or more wires that can be twisted or braided and which can b...	07/21/1992
5132491	Shielded jacketed coaxial cable A jacketed coaxial cable including two or more metal shielding layers, including semiconductive polymer coated tape layers surrounding the drain wires, insulation, and center conductor thereof, the jacket thereof being semiconductive or alternatively non-...	07/21/1992
5066881	Semi-conducting layer for insulated electrical conductors A semi-conducting pyrolyzed glass fiber layer equalizes the electrical potential on the exterior surface of an insulated conductor when the layer covers the surface. The layer prohibits the development of a corona discharge and bleeds off any electrical c...	11/19/1991
5043538	Water resistant cable construction A water impervious cable construction for aerial, underground, or underwater use which includes at least one central electrical conductor, an overlayer of insulation material such as a plastic, a shield layer formed of a plurality of individual conductors...	08/27/1991
5037999	Conductively-jacketed coaxial cable A conductively jacketed coaxial cable which provides continuous electrical contact from a drain wire through a metal-coated tape wrapped shield, a semiconductive adhesive layer applied to the tape on the reverse side from the metal coating, to a semicondu...	08/06/1991
5036165	Semi-conducting layer for insulated electrical conductors A semi-conducting pyrolyzed glass fiber layer equalizes the electrical potential on the exterior surface of an insulated conductor when the layer covers the surface. The layer prohibits the development of a corona discharge and bleeds off any electrical c...	07/30/1991
5006670	Electric power cable In a single core or multi-core electric power cable, the dielectric screen of the or each cable core is surrounded by a moisture barrier consisting of a composite tape comprising a carrier layer of plastics material which is sandwiched between radially in...	04/09/1991
4986372	Electrical cable with spirally wrapped wires An electric cable with spirally wrapped wires and wire-retaining strips thereon. The cable includes an insulated electrical conductor, an extruded semiconductive insulation shield overlying the insulated electrical conductor, a plurality of strips extrude...	01/22/1991
4965412	Coaxial electrical cable construction A coaxial electric cable having a significant reduction in weight for equivalent electrical properties provided by wide spacing of braided or served shielding wires under metal foil, metal-laminated, or conductive tape shielding in a porous expanded polyt...	10/23/1990

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Class 174/106SC - Semiconducting