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| Number | Title | Issue Date |
| 6171669 | Expanded cable joint elastic sleeves with permissible residual deformation storage A storable tubular element for covering an electric cable joint which includes a rigid tubular support with a three layer sleeve having an unstretched bore of a size less than the external diameter of the support mounted on the tubular support in radially... | 01/09/2001 |
| 5171940 | Expanded cable joint elastic sleeves with permissible residual deformation after storage A storable covering element for electric cable joints which includes a tubular support on which a multi-layer sleeve is mounted in radially stretched condition, a cable joint with such a sleeve and a sleeve for such use. The sleeve has an inner layer of c... | 12/15/1992 |
| 5150516 | Process for making detachable connecting means for ribbon optical fiber cables and the connecting means obtained thereby Connectors for optical cables in ribbon form and a process for making such connectors in which metal plates for the enclosing the cable ends are made by cold, plastic flow forming of grooves in the plates with a punch having ridges produced by a process w... | 09/29/1992 |
| 5138483 | Low-noise active fiber optical amplifier with pumping power reflector An optical, low-noise amplifier of the active-fiber type, which fiber contains a laser light emitting substance, adapted to be connected to an optical telecommunication fiber and receiving light therefrom at the transmission wavelength. The active fiber i... | 08/11/1992 |
| 5119229 | Amplifier for optical fiber telecommunication lines and optical fiber telecommunication lines incorporating said amplifier An optical amplifier (3) in accordance with the invention consists of the assembly of a length of active-core optical fiber (8), single-mode to both pumping and signal optical radiations, and a dichroic coupler (6) which includes two optical fiber lengths... | 06/02/1992 |
| 5111571 | Method for manufacturing a body with a surface of revolution at its end with the axis thereof aligned with an axis of the body A method of manufacturing a body with a surface of revolution at one end co-axial with an axis of the body in which the body is mounted on a rotatable shaft with the body axis coaxial with the shaft axis, such shaft being movable by a limited amount trans... | 05/12/1992 |
| 5093881 | Connector for interconnecting optical fiber cable ribbons A pair of interengageable connectors for interconnecting optical fiber tape or ribbon cables which have a plurality of parallel optical fibers within a relatively thin and wide covering. Each connector has a ferrule formed by semicylindrical elements with... | 03/03/1992 |
| 5087108 | Double-core active-fiber optical amplifier having a wide-band signal wavelength The invention relates to an optical amplifier, in particular for optical fiber telecommunication lines (1), operating with a transmission signal in a predetermined wavelength range, which amplifier comprises a fluorescent active optical fiber (6) doped wi... | 02/11/1992 |
| 5087492 | Expanded elastic sleeve with wound internal support for electric cable joints and sealing ends A stretched, elastic sleeve for enclosing a joint between a pair of interconnected electric cables, or an end of such a cable, is mounted on a tubular supporting body formed by a helically wound tape with contiguous turns. The tape has transversely extend... | 02/11/1992 |
| 5054876 | Optical fiber telecommunication line including amplifiers distributed along the line for the transmitted signals An optical fiber telecommunication line composed of a number of series connected optical cables arranged end-to-end includes an active core optical fiber amplifier for the transmitted signals between each adjacent pair of optical cables. Two pumping optic... | 10/08/1991 |
| 5052092 | Apparatus for inserting a rigid support within a contractable sleeve for electric cable joints Process and apparatus for inserting a rigid support in a contractible sleeve used to enclose a joint between a pair of electric cables. The support has an outer diameter greater than the unstretched inner diameter of the sleeve. The sleeve is enclosed in ... | 10/01/1991 |
| 5042335 | Method and apparatus for manufacturing a body with a surface of revolution at its end with the axis thereof aligned with an axis of the body An apparatus for manufacturing a body provided at one end with a surface of revolution. The axis of the apparatus is aligned with a predetermined longitudinal axis of the body. The apparatus including a mechanism for the compensation of the oscillations o... | 08/27/1991 |
| 5037179 | Interconnect system for coupling ribbon optical fibers and method of making the same An interconnect system for ribbon-joined optical fibers includes two connectors (1, 2) integrally attached to the ends of respective optical fiber ribbons (3, 4), in which each connector (1, 2) consists of a pair of coupled metal plates (5) rigidly fasten... | 08/06/1991 |
| 5001338 | Body position sensor by phase comparison of modulated light waves transmitted through optical fiber An optical position sensor for indicating the position of a movable body with respect to a reference point. A first optical signal at one wavelength and a second optical signal at a different wavelength, both modulated at a radio frequency, are transmitte... | 03/19/1991 |
| 4994632 | Electric cable with laminated tape insulation A paper-polymeric material, laminated tape, an electric cable insulated with such tape and a method of making the tape. The tape includes a film of polymeric material to at least one surface of which a paper tape comprising cellulose fibers is bonded by c... | 02/19/1991 |
| 4986663 | Method and apparatus for determining the position of a mobile body A method and apparatus for determining the position of a mobile body which is movable along a rectilinear path relative to a fixed reference body in which the position of the mobile body is independent of any spurious movements of the body or variations i... | 01/22/1991 |
| 4961255 | Apparatus for applying an insulating sleeve to an electric cable joint Apparatus for applying an elastic sleeve to a joint between a pair of electric cables including a tubular cylindrical plastic support with an internal bore larger than the diameters of the cables and on which the elastic sleeve in its stretched state is m... | 10/09/1990 |
| 4932746 | Optical fiber cable with optical fibers in tubes unbonded to surrounding core An optical fiber cable with a plastic core having longitudinally extending plastic tubes embedded therein, each plastic tube loosely containing at least one optical fiber. The materials of the core and the tubes are selected so that there is no significan... | 06/12/1990 |
| 4927294 | Method and equipment for laying an elongated element underground In mobile laying apparatus for laying an elongated element, such as a cable, in a trench, especially a trench in a sea bed, which apparatus is advanced in a predetermined direction and includes apparatus for digging the trench and ways along which the ele... | 05/22/1990 |
| 4923496 | Method of fabricating fluoride-glass integrated optical waveguides Integrated optical guides are fabricated on fluoride glass plates by expog such plates to an atmosphere of a gaseous halogen other than fluorine, or of a compound capable of generating such a halogen, at high temperature and pressure, so as to obtain a i... | 05/08/1990 |
| 4902096 | Optical fiber cable with fiber enclosing tubes in transparent core An optical fiber cable with an elongated core of transparent plastic material having a plurality of readily visible tubes of a dull material embedded therein and extending longitudinally thereof. Each tube loosely receives at least one optical fiber. The ... | 02/20/1990 |
| 4889399 | Expanded beam connector for optical fibers An optical fiber expanded beam connector in which a spherical lens is held between a conical seat on a sleeve and a conical seat on a support for the bared optical fiber, the support being within the sleeve and having an external diameter less than the in... | 12/26/1989 |
| 4867527 | Combined electrical power and optical fiber cable A cable for conveying both electrical power and optical signals, the cable having an electric conductor with insulation therearound, a sheath around the insulation, a one or two part protective layer around the insulation, a tube within the protective lay... | 09/19/1989 |
| 4859068 | Screw type extruder with flow chambers externally and internally of screw A screw type, polymeric material extruder with an elongated body having a cylindrical bore with a hollow screw in the bore, the screw having external and internal threads. A cylindrical body is within the internal threads, and the screw with the wall of t... | 08/22/1989 |
| 4853490 | Laminated paper-plastic insulating tape and cable including such tape A composite tape for forming at least part of the insulation of a high voltage electrical cable, particularly an oil-filled cable, and a cable including such insulating tape. The composite tape includes at least one layer of paper tape having a borate or ... | 08/01/1989 |
| 4846544 | Method of interconnecting optical fiber cables and connector therefore A connector for connecting an optical fiber to another optical fiber or other optical signal receiving device, the connector having an elongated body with a central bore which is larger than the optical fiber with a protective layer thereon so that the la... | 07/11/1989 |
| 4836641 | Submarine optical fiber line with interconnected different cable types A submarine, optical fiber telecommunication line having optical fiber cables with external armor interconnected with optical fiber cables with only internal armor by opto-electronic repeaters and tubular bodies. The repeaters, the tubular bodies and the ... | 06/06/1989 |
| 4813754 | Optical fiber cable joint A joint between two different types of optical fiber cables, the tension and compression stresses to which the cables are subjected being withstood in one of the cables by a centrally disposed armor having the optical fibers therearound and in the other o... | 03/21/1989 |
| 4807958 | Method of interconnecting optical fiber cables and connector therefor A method for interconnecting optical fiber cables and a connector for use in such method. In the method, the spherical lenses normally used to couple the fibers is replaced by a spherical body of smaller diameter and the fibers are brought into contact wi... | 02/28/1989 |
| 4805392 | Optical fiber cable manufacturing apparatus In the manufacture of an optical fiber cable in which optical fibers are paid out from supply bobbins and inserted into the grooves of a core member by means of an inserting head, a photoelectric optical system is disposed between the supply bobbins and t... | 02/21/1989 |
| 4803309 | Electrical cable with open helix screen wires electrically contacting a longitudinal wire and manufacture thereof An electrical cable with a core comprising an electrical conductor surrounded by insulation and with both a screen of wires in open helix configuration on the core and at least one other wire extending longitudinally of the core and electrically contactin... | 02/07/1989 |
| 4790464 | Method and apparatus for cutting optical fibres Method and apparatus for cutting optical fibres, whereby said optical fibres provided with at least one protective covering, are caused to be cut by the transveral movement of two blades rigidly connected to one another and forming an angle of less than 4... | 12/13/1988 |
| 4791240 | Electric cable with stranded conductor filled with water blocking compound and with extruded insulation A filler compound for the spaces between the wires of a stranded conductor surrounded by and contacting a semiconductive layer which is surrounded by a layer of extrudced insulation, a method for filling such spaces with the compounds and an electric cabl... | 12/13/1988 |
| 4786135 | Connector for optical fiber cables A connector for interconnecting optical fiber cables or an optical fiber with an optical component, the cable or cables having an optical fiber encircled by a tension resistant member comprising a yarn. The connector has a hollow cylindrical body which sl... | 11/22/1988 |
| 4784462 | Submarine optical fiber cable with grooved plastic core and manufacture thereof An optical fiber submarine cable having only a central rope for withstanding the stresses to which the cable is subjected, a plastic core with interrupted but closed or substantially closed, grooves at its outer portion, at least one optical fiber in each... | 11/15/1988 |
| 4773452 | Termination of a tube for transporting pressurized fluids A traction resistant termination for a tube which transports fluids under high pressure, the tube having an inner tubular member of an elastomeric or plastomeric material surrounded by at least two helically wound layers of metal straps. The tubular membe... | 09/27/1988 |
| 4774382 | Direct current cable insulation with insulating composition including electronegative gas A direct current electric cable with a conductor, a semi-conductive screen around and contacting the conductor, a plurality of layers of insulation formed by tapes of insulating material around the semi-conductive screen, a further semi-conductive screen ... | 09/27/1988 |
| 4768882 | Optical position sensing apparatus Apparatus for sensing the position of a body which is rectilinearly movable with respect to a fixed, reference body which apparatus comprises a pair of surfaces on the movable object each with areas with a low coefficient of reflection and with a high coe... | 09/06/1988 |
| 4769287 | Insulation material of non-cross-linked polymer and polymerized silanic monomer and electrical cables insulated therewith An electric cable having at least one conductor and at least one covering therefor obtained from the polymerization of a silanic monomer of a compound comprising a non-cross-linked base-polymer and a polymerizable silanic monomer present prior to polymeri... | 09/06/1988 |
| 4767173 | Submarine telecommunication line with optical fibers A hollow cylindrical, watertight casing housing optoelectronic repeater components, having optical fibers extending therefrom, and having a bore in which a tension resisting rope is received and is insulated from the wall of the bore. The casing is enclos... | 08/30/1988 |
