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US4498732A Expired / Lapsed US ⏱️ 0.0 years remaining

Fiber optic splice organizer

Assignee: Raychem Corp
•
Filing: 1982-05-25
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Granted: 1985-02-12
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Expires: 2002-05-25
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Abstract

Abstract A method and device for organizing a bight of an optical fiber and the like at a splice or slack point is provided. The method comprises wrapping the bight about a cylindrical core to form a helix or a pair of helices of opposite handedness, thereby both minimizing the diameter of a container necessary to enclose that bight and maximizing the bend radius of the fiber. The bight may be laid on a sheet for convenient wrapping, and a plurality of fibers per sheet, sheets per core, or cores per splice may be used if the number of fibers to be organized is large. A ready means of encapsulation is also provided.

Inventors

  • 👤 Bruce D. Campbell
  • 👤 Vernon A. Fentress

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 06:48
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4439; G02B6/4471; G02B6/4478

Claims Analysis

Total Claims: 35
Claim 1
Independent Claim 109 words
A device for helically wrapping an optical fiber about a cylindrical core, comprising: (a) a cylindrical core having a radius of which is less than the minimum bending radius of said fiber (b) a sheet of flexible material, which sheet is attached longitudinally to said core along one edge of the sheet, and is wrapped around said cylindrical core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 2
Independent Claim 109 words
A device for helically wrapping an optical fiber about a cylindrical core, comprising: (a) a cylindrical core having a radius of which is less than the minimum bending radius of said fiber (b) a sheet of flexible material, which sheet is attached longitudinally to said core along one edge of the sheet, and is wrapped around said cylindrical core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 3
Dependent Claim 16 words
The device of claim 1 wherein said core is tapered at at least one end thereof.
Claim 4
Dependent Claim 17 words
The device of claim 1 wherein said sheet possesses indicia thereon to identify said fiber associated therewith.
Claim 5
Dependent Claim 20 words
The device of claim 1 wherein said sheet possesses guide lines thereon to aid the arrangement of said fiber thereon.
Claim 6
Dependent Claim 15 words
The device of claim 1 wherein a plurality of sheets are attached to said core.
Claim 7
Dependent Claim 13 words
The device of claim 1 wherein said sheet comprises a plurality of laminae.
Claim 8
Dependent Claim 24 words
The device of claim 6 wherein at least one pair of said laminae are fused to form a tube for receiving said fiber therein.
Claim 9
Dependent Claim 141 words
An optical fiber organizer kit having component parts capable of being assembled for organizing a bight in an optical fiber between two points, the kit comprising the combination of: (a) a cylindrical core having a length adapted to be inserted on an axis between said two points and having a radius which is less than the minimum bending radius of said fiber; and (b) a sheet of flexible material adapted to have said optical fiber arranged thereon and to be wrapped about said core, said sheet being wrapped around said core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 10
Dependent Claim 141 words
An optical fiber organizer kit having component parts capable of being assembled for organizing a bight in an optical fiber between two points, the kit comprising the combination of: (a) a cylindrical core having a length adapted to be inserted on an axis between said two points and having a radius which is less than the minimum bending radius of said fiber; and (b) a sheet of flexible material adapted to have said optical fiber arranged thereon and to be wrapped about said core, said sheet being wrapped around said core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 11
Dependent Claim 190 words
A fiber optic cable joint kit having component parts capable of being assembled for forming a joint between two fiber optic cables, said cables each comprising an optical fiber surrounded by an outer jacket wherein a portion of the outer jacket is removed to expose said fiber, the kit comprising the combination of: (a) a cylindrical core having a length adapted to be placed between the ends of the jacketed portions of said cables and having a radius which is less than the minimum bending radius of said fiber; (b) a sheet of flexible material adapted to have said optical fiber arranged thereon when said fiber has been joined to be wrapped about said core, said sheet being wrapped around said cylindrical core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core; and (c) covering means for covering said joint when said sheet has been wrapped about said core.
Claim 12
Dependent Claim 190 words
A fiber optic cable joint kit having component parts capable of being assembled for forming a joint between two fiber optic cables, said cables each comprising an optical fiber surrounded by an outer jacket wherein a portion of the outer jacket is removed to expose said fiber, the kit comprising the combination of: (a) a cylindrical core having a length adapted to be placed between the ends of the jacketed portions of said cables and having a radius which is less than the minimum bending radius of said fiber; (b) a sheet of flexible material adapted to have said optical fiber arranged thereon when said fiber has been joined to be wrapped about said core, said sheet being wrapped around said cylindrical core, said optical fiber being arranged on said sheet such that when said sheet is wrapped about said core a minimum helical pitch angle, θ, of said fiber is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core; and (c) covering means for covering said joint when said sheet has been wrapped about said core.
Claim 13
Dependent Claim 14 words
The kit of claim 9 wherein the covering means comprises a heat-recoverable polymeric sleeve.
Claim 14
Dependent Claim 15 words
The kit of claim 10 wherein the heat-recoverable sleeve comprises an integral electrical heating means.
Claim 15
Dependent Claim 108 words
A joint between two fiber optic cables, each cable comprising an optical fiber and said optical fibers having been jointed to form a bight, wherein said bight has been organized by being helically wrapped about a cylindrical core positioned generally parallel to the axis between said two cables and having a radius which is less than the minimum bending radius of said fiber, said bight being helically wrapped about said core in such a manner that a minimum helical pitch angle, θ, of said bight is determined by r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 16
Dependent Claim 108 words
A joint between two fiber optic cables, each cable comprising an optical fiber and said optical fibers having been jointed to form a bight, wherein said bight has been organized by being helically wrapped about a cylindrical core positioned generally parallel to the axis between said two cables and having a radius which is less than the minimum bending radius of said fiber, said bight being helically wrapped about said core in such a manner that a minimum helical pitch angle, θ, of said bight is determined by r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 17
Independent Claim 83 words
A method of organizing a bight between two points in an optical fiber, which method comprises helically wrapping said bight about a cylindrical core positioned generally parallel to an axis between said two points wherein the radius of said core is less than the minimum bending radius of said fiber and wherein a minimum helical angle, θ, of said bight is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 18
Independent Claim 83 words
A method of organizing a bight between two points in an optical fiber, which method comprises helically wrapping said bight about a cylindrical core positioned generally parallel to an axis between said two points wherein the radius of said core is less than the minimum bending radius of said fiber and wherein a minimum helical angle, θ, of said bight is determined from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 19
Dependent Claim 18 words
The method of claim 13 wherein said helical wrapping comprises forming a pair of helices of opposite handedness.
Claim 20
Dependent Claim 12 words
The method of claim 13 wherein more than one fiber is organized.
Claim 21
Dependent Claim 11 words
The method of claim 13 which further comprises encapsulating said fiber.
Claim 22
Dependent Claim 47 words
The method of claim 13 wherein said helical wrapping comprises the steps of: (a) arranging said fiber on a sheet such that said fiber will become helically wrapped about said core when said sheet is wrapped about said core; and (b) wrapping said sheet about said core.
Claim 23
Dependent Claim 18 words
The method of claim 17 wherein said helical wrapping comprises forming a pair of helices of opposite handedness.
Claim 24
Dependent Claim 22 words
The method of claim 17 wherein said sheet is provided with indicia to identify at least one of said fiber arranged thereon.
Claim 25
Dependent Claim 11 words
The method of claim 17 which further comprises encapsulating said fiber.
Claim 26
Dependent Claim 24 words
The method of claim 17 wherein said sheet comprises a plurality of laminae, and said fiber is placed between a pair of said laminae.
Claim 27
Dependent Claim 20 words
The method of claim 21 which further comprises encapsulating said fiber by an encapsulant introduced between said pair of laminae.
Claim 28
Dependent Claim 12 words
The method of claim 17 wherein more than one fiber is organized.
Claim 29
Dependent Claim 12 words
The method of claim 23 wherein more than one sheet is employed.
Claim 30
Dependent Claim 19 words
The method of claim 24 wherein more than one fiber is arranged on at least one of said sheets.
Claim 31
Independent Claim 92 words
A method of making a joint between two fiber optic cables, each cable comprising an optical fiber, which method comprises: (a) joining said optical fibers, thereby forming a bight; (b) providing a cylindrical core for organizing said bight wherein a radius of said core is less than the minimum bending radius of said fiber; (c) helically wrapping said bight about said cylindrical core; and (d) determining a minimum helical angle, θ, from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 32
Independent Claim 92 words
A method of making a joint between two fiber optic cables, each cable comprising an optical fiber, which method comprises: (a) joining said optical fibers, thereby forming a bight; (b) providing a cylindrical core for organizing said bight wherein a radius of said core is less than the minimum bending radius of said fiber; (c) helically wrapping said bight about said cylindrical core; and (d) determining a minimum helical angle, θ, from r'=r/cos θ where r' is the minimum bending radius of the fiber and r is the radius of the core.
Claim 33
Dependent Claim 15 words
The method of claim 26 which further comprises covering said joint with a covering means.
Claim 34
Dependent Claim 14 words
The method of claim 27 wherein the covering means comprises a heat-recoverable polymeric sleeve.
Claim 35
Dependent Claim 14 words
The method of claim 28 wherein the heat-recoverable sleeve comprises integral electrical heating means.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-02-12 1988-08-13 1989-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-02-12 1992-08-13 1993-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-02-12 1996-08-13 1997-02-12 $7700.00 Window Closed / Lapsed

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