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| Number | Title | Issue Date |
| 7920765 | Ruggedized optical fibers for wellbore electrical cables Disclosed are wellbore electric cable components, methods of manufacturing such components, and cables incorporating the components. Particularly, ruggedized optical fibers useful for forming slickline electric cables are described. The ruggedized optical fiber comp... | 04/05/2011 |
| 7590321 | Mid-span breakout with helical fiber routing A mid-span breakout arrangement includes a distribution cable and a tether cable. The distribution cable has a breakout access location. The tether cable is secured to the distribution cable adjacent the breakout access location. The breakout further includes at lea... | 09/15/2009 |
| 7433564 | Optical device for optical communication An optical phase modulator made of lithium niobate or the like phase-modulates the output light of a single-wavelength laser light source 20 that emits CW light, and the phase-modulated light is inputted to a dispersion medium 22. The positive chirp an... | 10/07/2008 |
| 7421169 | Optical fiber cable An optical fiber cable that sustains reduced increase in transmission loss and optical fiber breakage when subject to external pressure exerted thereon, comprises an aggregate of elements including central buffer filaments disposed in the center part of the optical ... | 09/02/2008 |
| 7409126 | Optical fiber having a low polarization mode dispersion and process and apparatus for producing it An apparatus for producing a low-PMD optical fiber having a furnace for melting a lower portion of an optical preform; a traction device for pulling an optical fiber from the lower portion of an optical preform; a spinning device for imparting a substantially consta... | 08/05/2008 |
| 7397991 | Fiber optic cables and assemblies and the performance thereof A fiber optic cable having at least one optical fiber such as a microstructured bend performance optical fiber disposed within a protective covering. The protective covering is highly flexible and the fiber optic cable has extremely low delta attenuation when aggres... | 07/08/2008 |
| 7376313 | Low noise high strength optical fiber cables A method includes incorporating an optical fiber into a buffer tube, wherein the buffer tube has a first length. The buffer tube contains the optical fiber and a filler compound to create a buffer tube assembly. The buffer tube assembly is heated to an elevated temp... | 05/20/2008 |
| 7373054 | Optical cable shield layer connection An optical cable shield layer connection may include a wire electrically connected to a shield layer of an optical cable. The optical cable shield layer connection may also be sealed, for example, to prevent leak paths. The optical cable shield layer connection may ... | 05/13/2008 |
| 7357021 | Methods of monitoring downhole conditions Methods of monitoring various downhole conditions are described, including a system for determining and/or identifying the flow of fluid in a well, determining sand production in a well, identifying localized events in a well, determining the apparent flow velocity ... | 04/15/2008 |
| 7338185 | Futuristic Christmas ornament This futuristic Christmas ornament has at least one externally illuminated light transmissive tube extending out of a hollow body which holds the light source internally. The power source can be a battery that is also within the hollow body or a low voltage electric... | 03/04/2008 |
| 7336885 | Test apparatus, optical coupler and method of manufacturing same A test apparatus including an optical coupler for optically coupling a main frame and a test head is provided. The optical coupler has a plurality of optical fiber cables, a cable storage chain for bundling a stored portion except for a non-stored portion in a part ... | 02/26/2008 |
| 7324730 | Optical fiber cables for wellbore applications A cable which includes conductor bundles prepared from at least one optical fiber positioned either centrally or helically about the center axis of the bundle, metallic conductors helically positioned around the bundles center axis, and a polymeric insulation materi... | 01/29/2008 |
| 7311962 | Method of forming reflecting dielectric mirrors A mirror structure includes a plurality of features of a defined size. The features include alternating spatial units of a chalcogenide glass and a thermoplastic polymer, and are specifically arranged in an ordered form so that the structure is highly reflective. Th... | 12/25/2007 |
| 7295734 | Optoelectronic fiber codrawn from conducting, semiconducting, and insulating materials The invention provides techniques for drawing fibers that include conducting, semiconducting, and insulating materials in intimate contact and prescribed geometries. The resulting fiber exhibits engineered electrical and optical functionalities along extended fiber ... | 11/13/2007 |
| 7292757 | Apparatus and method for on-line binder laylength measurement and adjustment A method and apparatus for determining and adjusting binder laylength during the process of manufacturing a selected fiber optic cable design. Specifically, a binder, having a distinguishing and physically detectable feature, is wrapped around fiber optic bundles or... | 11/06/2007 |
| 7280726 | Controlled-intensity multiple-frequency multiple-axis illumination of macroscopic specimens from a single light source using special bifurcated cables In one embodiment a macroscopically-sized specimen is illuminated with radiations of selectable multiple intensities and frequencies for viewing along a single viewing axis. A stage supports specimen to be observed. First and second illumination sources provide resp... | 10/09/2007 |
| 7261687 | Forward scanning imaging optical fiber probe Probes, and systems and methods for optically scanning a conical volume in front of a probe, for use with an imaging modality, such as Optical Coherence Tomography (OCT). A probe includes an optical fiber having a proximal end and a distal end and defining an axis, ... | 08/28/2007 |
| 7251418 | Signal receiver having light guide for guiding light transmitted from remote control A signal receiver which receives an optical signal from a remote control includes a light guide for guiding a light passing through a front panel window toward a photodetector mounted on a circuit board. The light guide is made of a homogeneous material. A light gui... | 07/31/2007 |
| 7224872 | Rugged fiber optic array An array of fiber optic hydrophones or geophones is formed by winding of optical fiber around a continuous, yet flexible cylindrical core. The cylindrical core contains an elastomer filled with a specified percentage of voided plastic microspheres. The elastomer pro... | 05/29/2007 |
| 7212715 | Cable element having repositionable pressure sensitive adhesive to couple buffer tubes to a central strength member A cable element and a method of making the same, in which the cable element has a central strength member, a plurality of buffer tubes are disposed on the central strength member, each of the plurality of buffer tubes encloses at least one signal transmission elemen... | 05/01/2007 |
| 7200307 | High count telecommunication optical cable with controlled fiber length method and apparatus for manufacturing the same A telecommunication optical cable has a number of optical fibers; at least a microsheath loosely containing the optical fibers, the at least one microsheath loosely containing the optical fibers therein forming at least one corresponding microbundle, wherein the opt... | 04/03/2007 |
| 7174076 | Optical fiber cable suitable for installation using an air-blown installation method An optical fiber cable suitable installation using an air-blown method is disclosed. The optical fiber cable has a center tensile member located at a center of the optical fiber cable to provide tension-resistant force, at least three loose tubes each of which inclu... | 02/06/2007 |
| 7158712 | Optical fiber coupler and manufacturing apparatus and method thereof An optical fiber coupler and manufacturing apparatus and method thereof aim to provide a loading fixture and a clamping device to fabricate 1×4, 2×4 and 4×4 optical fiber couplers, and also improve driving mechanisms and operation of the packaging station and the... | 01/02/2007 |
| 7155097 | Fabrication of microstructured fibres A preform for a microstructured fibre or a part for a preform for a microstructured fibre. The preform or part has a length in the longitudinal direction and a cross section perpendicular thereto, and includes a rod arranged at the centre of the preform or part, wit... | 12/26/2006 |
| 7095930 | Groove cable A cable system and method including a cable or a microduct provided within the groove extending vertically into, but not through, a pavement. The cable has a central strength member, at least one buffer tube stranded around the central strength member, an outer jack... | 08/22/2006 |
| 7088894 | Optical cable having waved metal tube, and method and apparatus for producing the same An optical cable having a metal tube receiving an optical fiber and bent to form a waved shape is disclosed. The optical cable may prevent cutoff of the optical fiber or deterioration of optical characteristics though tensile force is applied to the optical cable in... | 08/08/2006 |
| 7079734 | Fiber optic drop cables suitable for fiber to the subscriber applications A fiber optic drop cable is disclosed that includes at least one optical waveguide disposed within a tube, a first and second strength assembly, and a cable jacket. Each strength assembly includes a strength component and a plurality of strength members, wherein the... | 07/18/2006 |
| 7072548 | Processing method for an image fiber In the present invention, a deformation process is applied to a part of an image fiber, and when implementing improvement of the quality of the transmitted image, the improvement of the image quality in the center region and peripheral region of the image fiber in t... | 07/04/2006 |
| 7068893 | Optical fiber composite electrical power cable An underground power cable having an optical fiber sensor for measuring temperature distribution is disclosed. In the power cable, an optical fiber for measuring temperature distribution is received in a stainless steel tube having excellent strength, and this optic... | 06/27/2006 |
| 7058296 | Design method for WDM optical networks including alternate routes for fault recovery A procedure for designing WDM optical networks provides both working circuits and protection circuits for carrying traffic demands between node pairs. The protection circuits are activated for the purpose of network recovery in case of a fault on a working circuit. ... | 06/06/2006 |
| 7043128 | Multimode optical fibers with increased bandwidth The specification describes a technique for drawing circular core multimode optical fiber using twist during draw to increase fiber bandwidth. ... | 05/09/2006 |
| 7016578 | Interior optical cable having a plurality of tight cables Disclosed is an interior optical cable including a plurality of tight buffer optical fibers; a subsidiary tension member surrounding the outer circumferences of the optical fibers; and an outer coating layer surrounding the subsidiary tension member, wherein the tig... | 03/21/2006 |
| 7016577 | Multi-colored electroluminescent filament and method for manufacturing the same The present invention relates to an electroluminescent filament capable of emitting a plurality of colors and a method for manufacturing the same. Said electroluminescent filament of the present application comprises: A metal conductive wire as core wire; A medium i... | 03/21/2006 |
| 7016576 | Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or avers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibers incorpor... | 03/21/2006 |
| 6999641 | Measurement of large strains in ropes using plastic optical fibers A method for the direct measurement of large strains in ropes in situ using a plastic optical fiber, for example, perfluorocarbon or polymethyl methacrylate and Optical Time-Domain Reflectometer or other light time-of-flight measurement instrumentation. Protective s... | 02/14/2006 |
| 6997603 | Instrumented fiber optic tow cable An integrated fiber-optic tow cable is described having both optical fibers and armor wires located outside the cable core to avoid high strain on the optical fibers when the cables is under stress during deployment. The optical fibers have integral temperature sens... | 02/14/2006 |
| 6993229 | Method of making spun optical fiber with low PMD An optical fiber, and a method of making such optical fiber, wherein the optical fiber exhibits a beatlength greater than about 0.5 meters, and the fiber is spun to provide a polarization mode dispersion in the spun state of said fiber which is less than 0.05 ps/km | 01/31/2006 |
| 6980722 | Multi-layer flexible optical fiber tow cable for measuring water temperature A tow cable in which the temperature of the cable is measurable by the use of multiplexing capability intrinsic to optical fibers in which the optical fibers are positioned at the center of the tow cable and wound as part of two layers of surrounding strength wires.... | 12/27/2005 |
| 6968236 | Ceramic cardiac electrodes A cardiac electrode termination pair system that is particularly compatible with Magnetic Resonance Imaging (MRI) procedures. The electrodes include tip and ring electrodes made of a body-compatible ceramic on which is applied via electroplating, sputtered or the li... | 11/22/2005 |
| 6957001 | Color-changing and multi-colored electroluminescent cable The present invention relates to an electroluminescent light source. In particular, it relates to an multi-colored electroluminescent cable capable of changing colors, which comprises: a group of electroluminescent filaments which consist of a plurality of electrolu... | 10/18/2005 |
