Patents by Inventor Heng Ly
Heng Ly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220404571Abstract: In curing a matrix material of a rollable optical fiber ribbon, ultraviolet light may be concentrated in a selected range of wavelengths to avoid further curing the primary coating of each fiber. A ribbon may be made by aligning the fibers, each having at least a primary coating, into a ribbon shape, applying a matrix material in intermittently distributed portions along the ribbon-shaped group of fibers, and exposing the ribbon-shaped group of fibers and applied matrix material to ultraviolet light concentrated in a range of wavelengths absorbed more by the matrix material than by the primary coating.Type: ApplicationFiled: November 5, 2019Publication date: December 22, 2022Applicant: OFS Fitel, LLCInventors: Harry D Garner, Kariofilis Konstadinidis, Heng Ly
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Patent number: 11280977Abstract: A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.Type: GrantFiled: September 25, 2020Date of Patent: March 22, 2022Assignee: OFS FITEL, LLCInventors: Harold P. Debban, Peter A. Weimann, Heng Ly
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Patent number: 10989888Abstract: Embodiments of the invention include a method for making a partially bonded optical fiber ribbon. The method includes providing a linear array of optical fibers, and applying a bonding matrix material randomly to at least a portion of at least two adjacent optical fibers. The bonding matrix material is applied randomly to the adjacent optical fibers in such a way that the linear array of optical fibers forms a partially bonded optical fiber ribbon. The bonding matrix material applied randomly to the adjacent optical fibers is dense enough to allow the resulting partially bonded optical fiber ribbon to lay substantially flat. Also, the bonding matrix material applied randomly to the adjacent optical fibers is sparse enough to allow the resulting partially bonded optical fiber ribbon to be rolled into a substantially circular shape.Type: GrantFiled: January 12, 2017Date of Patent: April 27, 2021Assignee: OFS FITEL, LLCInventors: Harold P Debban, Timothy Goddard, Heng Ly
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Publication number: 20210018706Abstract: A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.Type: ApplicationFiled: September 25, 2020Publication date: January 21, 2021Applicant: OFS Fitel, LLCInventors: Harold P. Debban, Peter A. Weimann, Heng Ly
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Patent number: 10871621Abstract: A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.Type: GrantFiled: March 27, 2018Date of Patent: December 22, 2020Assignee: OFS FITEL, LLCInventors: Harold P Debban, Peter A Weimann, Heng Ly
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Publication number: 20200132952Abstract: A fiber-optic cable having optical fibers that are arranged as a rollable ribbon. Water-swellable material (e.g., superabsorbent liquid, superabsorbent powder, superabsorbent adhesive, etc.) is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials. The rollable ribbon is surrounded by a tube, with a dielectric strength member positioned external to the tube and substantially parallel to the tube. A jacket, with a ripcord along a substantial length of the jacket, surrounds the tube. Also taught is a process for manufacturing a rollable-ribbon fiber-optic cable, in which a water-swellable material is applied directly to the rollable ribbon, thereby eliminating the need to incorporate conventional water-absorbing yarns, tapes, or other such similar materials.Type: ApplicationFiled: March 27, 2018Publication date: April 30, 2020Applicant: OFS Fitel, LLCInventors: Harold P. Debban, Peter A. Weimann, Heng Ly
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Publication number: 20190219783Abstract: Embodiments of the invention include an optical fiber cable. The optical fiber cable includes at least one multi-fiber unit tube. The multi-fiber unit tube is substantially circular and dimensioned to receive a plurality of optical fibers. The optical fiber cable also includes at least one rollable optical fiber ribbon comprising a plurality of optical fibers positioned within the at least one multi-fiber unit tube. The plurality of optical fibers in the at least one rollable optical fiber ribbon are rolled in such a way that the at least one rollable optical fiber ribbon is formed in a variable shape. The optical fiber cable also includes a jacket surrounding the at least one multi-fiber unit tube.Type: ApplicationFiled: January 12, 2018Publication date: July 18, 2019Applicant: OFS Fitel, LLCInventors: Heng Ly, Peter A. Weimann, Henson P. Toland
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Patent number: 10310209Abstract: A tight-buffered optical fiber cable includes an improved method of accessing the coated optical fiber. The cable can include an optical fiber having a glass core and a cladding layer. One or more coating layers can be applied about the cladding layer. A buffer jacket material can be applied onto an outer surface of the outer coating layer as a buffer jacket outer layer. The buffer jacket outer layer can have distinctive features including a low tear strength, low elastic modulus, high elongation percentage, and low peeling force. This can allow a user of the optical fiber cable to separate at least a portion of the coated optical fiber from the buffer jacket outer layer by grasping a free end of the coated optical fiber and pulling it through the outer wall of the buffer jacket outer layer, thereby tearing through the outer wall of the buffer jacket outer layer.Type: GrantFiled: March 31, 2016Date of Patent: June 4, 2019Assignee: OFS FITEL, LLCInventors: Heng Ly, Peter A Weimann
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Patent number: 10185089Abstract: A method for splicing a first optical fiber ribbon cable to a second optical fiber ribbon cable includes separating an end of the first optical fiber ribbon cable into loose optical fibers, and re-ribbonizing the loose optical fibers into a ribbonized end having a second pitch different from the first pitch of the original first optical fiber ribbon cable. The method further includes inserting the ribbonized end into a mass fusion splicer having the second pitch, and splicing the ribbonized end to the end of the second optical fiber ribbon cable using the mass fusion splicer.Type: GrantFiled: August 11, 2017Date of Patent: January 22, 2019Assignee: OFS FITEL, LLCInventors: Denis E Burek, Yue Liang, Heng Ly
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Patent number: 10036863Abstract: An optical fiber cable comprising a duct space and a fiber density in the duct space. The fiber density is greater than 2.3 fibers/mm2.Type: GrantFiled: July 22, 2016Date of Patent: July 31, 2018Assignee: OFS FITEL, LLCInventors: Harold P Debban, Heng Ly, Peter A Weimann
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Publication number: 20180074261Abstract: A method for splicing a first optical fiber ribbon cable to a second optical fiber ribbon cable includes separating an end of the first optical fiber ribbon cable into loose optical fibers, and re-ribbonizing the loose optical fibers into a ribbonized end having a second pitch different from the first pitch of the original first optical fiber ribbon cable. The method further includes inserting the ribbonized end into a mass fusion splicer having the second pitch, and splicing the ribbonized end to the end of the second optical fiber ribbon cable using the mass fusion splicer.Type: ApplicationFiled: August 11, 2017Publication date: March 15, 2018Applicant: OFS Fitel, LLCInventors: Denis E Burek, Yue Liang, Heng Ly
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Patent number: 9880368Abstract: Embodiments of the invention include a method for making a partially bonded optical fiber ribbon. The method includes providing a linear array of optical fibers, and applying with an ink jet printing machine a bonding matrix material to at least a portion of at least two adjacent optical fibers. The applied bonding matrix material has a viscosity of approximately 2.0 to approximately 10.0 centipoise (cP) measured at 25 degrees Celsius (° C.). The applied bonding matrix material also has a conductivity of approximately 600 to approximately 1200 millimhos (mmhos). The applied bonding matrix material also has an adhesion of approximately 0.01 to approximately 0.20 Newtons (N). Also, the bonding matrix material is applied to at least a portion of at least two adjacent optical fibers in such a way that the linear array of optical fibers forms a partially bonded optical fiber ribbon.Type: GrantFiled: January 26, 2017Date of Patent: January 30, 2018Assignee: OFS FITEL, LLCInventors: Harold P Debban, Timothy Goddard, Heng Ly, Peter A. Weimann
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Publication number: 20170285291Abstract: A tight-buffered optical fiber cable includes an improved method of accessing the coated optical fiber. The cable can include an optical fiber having a glass core and a cladding layer. One or more coating layers can be applied about the cladding layer. A buffer jacket material can be applied onto an outer surface of the outer coating layer as a buffer jacket outer layer. The buffer jacket outer layer can have distinctive features including a low tear strength, low elastic modulus, high elongation percentage, and low peeling force. This can allow a user of the optical fiber cable to separate at least a portion of the coated optical fiber from the buffer jacket outer layer by grasping a free end of the coated optical fiber and pulling it through the outer wall of the buffer jacket outer layer, thereby tearing through the outer wall of the buffer jacket outer layer.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Applicant: OFS Fitel, LLCInventors: Heng Ly, Peter A. Weimann
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Publication number: 20170219792Abstract: Embodiments of the invention include a method for making a partially bonded optical fiber ribbon. The method includes providing a linear array of optical fibers, and applying with an ink jet printing machine a bonding matrix material to at least a portion of at least two adjacent optical fibers. The applied bonding matrix material has a viscosity of approximately 2.0 to approximately 10.0 centipoise (cP) measured at 25 degrees Celsius (° C.). The applied bonding matrix material also has a conductivity of approximately 600 to approximately 1200 millimhos (mmhos). The applied bonding matrix material also has an adhesion of approximately 0.01 to approximately 0.20 Newtons (N). Also, the bonding matrix material is applied to at least a portion of at least two adjacent optical fibers in such a way that the linear array of optical fibers forms a partially bonded optical fiber ribbon.Type: ApplicationFiled: January 26, 2017Publication date: August 3, 2017Applicant: OFS Fitel, LLCInventors: Harold P Debban, Timothy Goddard, Heng Ly
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Publication number: 20170219790Abstract: Embodiments of the invention include a method for making a partially bonded optical fiber ribbon. The method includes providing a linear array of optical fibers, and applying a bonding matrix material randomly to at least a portion of at least two adjacent optical fibers. The bonding matrix material is applied randomly to the adjacent optical fibers in such a way that the linear array of optical fibers forms a partially bonded optical fiber ribbon. The bonding matrix material applied randomly to the adjacent optical fibers is dense enough to allow the resulting partially bonded optical fiber ribbon to lay substantially flat. Also, the bonding matrix material applied randomly to the adjacent optical fibers is sparse enough to allow the resulting partially bonded optical fiber ribbon to be rolled into a substantially circular shape.Type: ApplicationFiled: January 12, 2017Publication date: August 3, 2017Applicant: OFS Fitel, LLCInventors: Harold P Debban, Timothy Goddard, Heng Ly
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Publication number: 20170023754Abstract: An optical fiber cable comprising a duct space and a fiber density in the duct space. The fiber density is greater than 2.3 fibers/mm2.Type: ApplicationFiled: July 22, 2016Publication date: January 26, 2017Applicant: OFS Fitel, LLCInventors: Harold P. Debban, Heng Ly, Peter A. Weimann
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Patent number: 9541723Abstract: 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. The protective jacket is relatively thick and rigid, having a thickness of 0.7-3.0 mm, and a modulus greater than 240 MPa.Type: GrantFiled: March 4, 2013Date of Patent: January 10, 2017Assignee: OFS FITEL, LLCInventors: Heng Ly, Peter A Weimann
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Publication number: 20160266343Abstract: An optical-fiber ribbon with reduced-diameter optical fibers is disclosed in which the optical-fiber ribbon comprises a plurality of reduced-diameter optical fibers that meet the ITU-T G.657.A1 standard or the ITU-T G.652.D standard, and a ribbon matrix surrounding the reduced-diameter optical fibers, wherein a local matrix thickness of the optical-fiber ribbon is more than about 35 microns.Type: ApplicationFiled: March 9, 2015Publication date: September 15, 2016Inventors: Peter A Weimann, Heng Ly
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Publication number: 20160011389Abstract: 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. The protective jacket is relatively thick and rigid, having a thickness of 0.7-3.0 mm, and a modulus greater than 240 MPa.Type: ApplicationFiled: March 4, 2013Publication date: January 14, 2016Applicant: OFS Fitel, LLCInventors: Heng Ly, Peter A Weimann
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Publication number: 20160004025Abstract: Described is an improved optical fiber cable specially adapted for seismic sensing. Compared with standard optical fiber cable, this improved optical fiber cable is reduced in size, lighter, and more flexible. These characteristics make the optical fiber cable more robust for reusable applications. Due to modifications in the design of the optical fibers, the size and weight of the seismic sensing cable may be substantially reduced. That allows longer lengths of seismic sensing cable, and more seismic sensor boxes, to be reeled on a given sized reel, and makes deployment of the seismic sensing cable faster, easier, and less expensive. A preferred cable design for reaching these objectives comprises multiple optical fibers, of a design just described, encased in a dual-layer optical fiber buffer encasement of acrylate resin.Type: ApplicationFiled: February 11, 2013Publication date: January 7, 2016Applicant: OFS FITEL, LLCInventors: Stefan Jost, Jason Pedder, Heng Ly, Jacob Ulrik Petersen