Patent application number | Description | Published |
20080273845 | Optical fiber cables - Described is an optical fiber cable designed for drop cable applications that has a compact profile, and is suitable for both the indoor and outdoor portions of the installation. The new design has three functional units, an optical fiber subunit, and two strength members arranged side-by side on either side of the optical fiber. The overall cable cross section round. In a preferred embodiment, the optical fiber module of the cable has a coupled fiber design. | 11-06-2008 |
20080285924 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 11-20-2008 |
20080285925 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. | 11-20-2008 |
20090087148 | Optical fiber cables - An optical fiber cable suitable for drop cable applications has a dual jacket, dual reinforcement layers, a round cross section, and a tight buffered construction. The optical fiber cable is a compact unitary coupled fiber assembly that has a small profile, and is light in weight, while still sufficiently robust for many indoor/outdoor drop cable installations. The small profile and round construction make the cable easy to connectorize. | 04-02-2009 |
20090087154 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 04-02-2009 |
20090245740 | Optical fiber cables - Described is an optical fiber cable designed for drop cable applications that has a compact profile, and is suitable for both the indoor and outdoor portions of the installation. The new design has three functional units, an optical fiber subunit, and two strength members arranged side-by side on either side of the optical fiber. The overall cable cross section round. In a preferred embodiment, the optical fiber module of the cable has a coupled fiber design. | 10-01-2009 |
20090297105 | BEND INSENSITIVE FIBER OPTIC DROP CABLE FOR IN-HOME USE - A bend insensitive fiber optic cable includes a singlemode fiber, a buffer layer surrounding the fiber wherein a thickest component of the buffer layer has an elastic modulus greater than 515 MPa (75,000 psi), and a jacket surrounding the buffer layer, wherein the jacket has a thickness of at least 1.2 mm. In one preferred embodiment, the buffer layer includes a nylon 12 resin with a nominal elastic modulus of approximately 218,000 psi. In this embodiment, an inner thin component of the buffer layer is made of an ethylene/ethyl acrylate resin so as to facilitate stripping of the buffer layer away from the fiber. | 12-03-2009 |
20100080521 | OPTICAL FIBER WITH WATER-BLOCKING - Polymer-coated transmission media having water-blocking material embedded in the outer surface of the transmission media prevents water penetration into the transmission media and reduces the overall diameter of a cable made from the transmission media by eliminating a water-blocking tape layer in the cable. The outer surface of the transmission media is a polymer whose outer surface is embedded with a water-blocking material. The water-blocking material is applied before the polymer is cured. The transmission media may be any known type of optical media, which guides a light within the optical media. In various embodiments, optical fibers, buffered optical fibers and fiber ribbons are used as the transmission media. | 04-01-2010 |
20110243515 | Optical fiber cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 10-06-2011 |
20110262148 | COMPACT PLENUM-RATED RIBBON CABLES - Embodiments of the present invention include an optical fiber cable for use in a plenum. The cable comprises a tube, at least one optical fiber ribbon positioned within the tube, the optical fiber ribbon having a width (W), a jacket around the tube, the jacket having an outer diameter (D) and a limited oxygen index (LOI) of approximately at least 65%, at least two longitudinal strength members positioned between the tube and an outer surface of the jacket; and a yarn positioned between the tube and the jacket, wherein the ratio of the width (W) of the optical fiber ribbon and the outer diameter (D) of the jacket is approximately at least 0.25. | 10-27-2011 |
20110274397 | TIGHT-BUFFERED OPTICAL FIBER HAVING IMPROVED FIBER ACCESS - Certain embodiments of the invention may include systems and methods for providing tight-buffered optical fiber having improved fiber access. According to an example embodiment of the invention, a method for making a tight buffer upcoated optical fiber having a predetermined buffer stripping force is provided. The method includes controlling residual acrylate unsaturation (RAU) and oxygen in at least an outer surface of un-buffered optical fiber to achieve a predetermined buffer stripping characteristic, applying a tight buffer composition comprising acrylate to the un-buffered optical fiber, and curing the tight buffer composition. | 11-10-2011 |
20130011108 | UV Curable Acrylate Buffer Coating for Optical Fiber - Certain embodiments of the invention may include a UV curable acrylate buffer coating for optical fiber. According to an example embodiment of the invention, a buffered optical fiber is provided. The buffered optical fiber includes a core, a cladding surrounding the core, a primary layer surrounding the cladding, a secondary layer surrounding the primary layer. A clear or translucent buffer surrounds the optical fiber, wherein the buffer includes polyester/polyether polyol aliphatic urethane acrylate, and the buffer has an elastic modulus greater than 40,000 psi. | 01-10-2013 |
20130051745 | Plenum-Rated Optical Cables Utilizing Yarn Coated With Flame-Retarding and Smoke-Suppressing Coating - Certain embodiments of the invention may include a plenum-rated optical fiber cables utilizing yarn coated with a flame-retarding and smoke-suppressing. According to an example embodiment of the invention, a plenum-rated optical fiber cable is provided. The plenum-rated optical fiber cable includes an optical fiber, a jacket surrounding the optical fiber, and a layer of yarn positioned between the optical fiber and the jacket. The jacket is made from a low-smoke polymer, the yarn is coated with a sufficient amount of flame-retarding and smoke-suppressing material such that the cable passes the NFPA 262 “Steiner Tunnel” fire test, whereby its flame spread is less than 5 feet, peak optical density is less than 0.50, and average optical density is less than 0.15. | 02-28-2013 |
20130058613 | COMPACT, LOW-COST OUTSIDE PLANT OR INDOOR/OUTDOOR CABLES - An optical fiber cable includes an unbuffered optical fiber, a tensile reinforcement member surrounding the unbuffered optical fiber, and a jacket surrounding the tensile reinforcement member. The jacket is suitable for outside plant environment. A water blocking material is placed between the unbuffered fiber and the jacket. The unbuffered optical fiber comprises an ultra bend-insensitive fiber that meets the requirements of ITU-T G.657.B3 and exhibits an additional loss of less than approximately 0.2 dB/turn when the fiber is wrapped around a 5 mm bend radius mandrel. The optical fiber cable also exhibits an additional loss of less than approximately 0.4 dB/km at 1550 nm when the cable is subjected to −20° C. outside plant environment. | 03-07-2013 |
20130077922 | Double jacket optical fiber cables - Described are track-resistant all dielectric self-supporting (TR-ADSS) cables with improved cable jackets. A typical TR-ADSS optical fiber cable comprises an optical fiber sub-assembly, and a cable jacket system. The cable jacket system comprises an inner jacket, an aramid strength layer and an outer jacket. The improvement in the cable jacket system results from the addition of a friction layer between the aramid strength layer and the outer jacket. The friction layer prevents unwanted slippage of the outer jacket with respect to the inner portions of the cable. | 03-28-2013 |
20130251321 | Optical Fiber Cables - Described are new cable designs for indoor installations wherein the cable comprises a dual-layer optical fiber buffer encasement of acrylate resin. The buffer encasement has an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The dual-layer optical fiber buffer encasement is wrapped with reinforcing yarn and encased in an outer protective jacket. A dual jacket embodiment adapted for indoor/outdoor installations is also described. | 09-26-2013 |
20140064682 | Liquid and Gaseous Resistance Compact Fiber Unit and Method of Making the Same - The embodiments disclosed herein seek to eliminate substantially all of the voids or air gaps among neighboring fibers within a CFU by wetting a plurality of optical fibers that comprises the CFU with an acrylate prepolymer resin before the plurality of the optical fibers are grouped together tightly. In one embodiment, instead of extruding a first acrylate prepolymer resin to the optical fibers immediately after a first die, the disclosed process wets the optical fibers with a first acrylate prepolymer resin prior to the first die. | 03-06-2014 |
20140064683 | CHEMICAL COMPOSITION OF FILLER RODS FOR USE IN OPTICAL FIBER CABLES - The present disclosure provides filler rods that have higher melting temperature than the conventional filler rods and methods of making the filler rods. For some embodiments, the filler rod is made from a blend of polyethylene and polypropylene. | 03-06-2014 |
20150049996 | AERIAL OPTICAL FIBER CABLES - Described are cable designs adapted for aerial installations wherein the cable comprises a bundle of multifiber tight buffer encasement units, with a conformal thin skin containment layer surrounding the bundle. The multifiber tight buffer encasement units have an acrylate compliant inner layer that protects the fiber and minimizes stress transfer to the fiber; and a hard, tough acrylate outer layer that provides crush resistance. The thin skin containment layer provides cable integrity with a minimum of added size and weight. The thin skin containment layer encasement is encased in an outer protective jacket. | 02-19-2015 |