Fiber optic cable breakout assembly

• US 9,575,277 B2
• Filed: 01/15/2015
• Issued: 02/21/2017
• Est. Priority Date: 01/15/2015
• Status: Active Grant

• Current Assignee: Raycap S.A.
• Original Assignee: Raycap S.A.
• Inventors: Bakatsias, Konstantinos, Coletti, Charis, Asimakopoulou, Fani
• Primary Examiner(s): KIM, ELLEN E
• Application Number:
  US14/598,048
• Publication Number:
  US 20160209615A1
• Time in Patent Office: 768 Days
• Field of Search: 385/24, 385/48, 385/39, 385/87, 385/136, 385/100, 385/134, 385/137
• US Class Current: 1/1
• CPC Class Codes: G02B 6/44528 Patch-cords; Connector arrangements in the system or in the box routing arrangements H04Q1/00
• CPC Class Codes: G02B 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps
• CPC Class Codes: G02B 6/44715 Fan-out devices
• CPC Class Codes: G02B 6/4472 Manifolds

Abstract

A breakout assembly includes a housing including a first end and a second end. A retaining member includes a first end configured to receive a fiber optic cable and a second end attaching to the first end of the housing and retaining exposed stripped layers of the fiber optic cable. A breakout head is configured to insert into the second end of the housing and includes holes for receiving furcation tubes. A nut holds the breakout head inside of the second end of the housing. Different optical fibers from the fiber optic cable are inserted into the furcation tubes and held by the breakout head. An outside surface of the breakout head and an inside surface of the second end of the housing have round side surfaces extending between flat top and bottom surfaces that prevent the breakout head from rotating within the housing.

Claims

1. A breakout assembly, comprising:

a housing;

a retaining member to attach longitudinally to a first end of the housing and receive a fiber optic cable; and

a breakout head longitudinally insertable into and through a second end of the housing, the breakout head including multiple holes to retain furcation tubes through the second end of the housing and pass individual pairs of optical fibers from the fiber optic cable through the furcation tubes, wherein the breakout head includes front and back inner chambers each filled with epoxy to encapsulate and hold the individual furcation tubes inside of the holes in the breakout head.

2. The breakout assembly of claim 1, wherein:

the housing comprises a round tube formed from a unitary piece of material; and

the retaining member is configured to screw into the first end of the round tube.

3. The breakout assembly of claim 1, wherein the retaining member is further configured to:

retain in an inner chamber a first insulation layer of the fiber optic cable that encases the optical fibers;

retain in a second strengthening layer of the fiber optic cable wrapped around the first insulation layer and radially spread out within the inner chamber; and

retain a third outside insulation layer of the fiber optic cable wrapped around the second strengthening layer that terminates at a bottom end of the inner chamber.

4. The breakout assembly of claim 1, wherein the retaining member includes an inner chamber filled with an epoxy to encapsulate and hold the fiber optic cable within the retaining member.

6. The breakout assembly of claim 1, including a nut configured to hold the breakout head inside the second end of the housing.

7. The breakout assembly of claim 6, wherein the nut includes a threaded inside surface configured to threadingly engage with a threaded outside surface formed on the second end of the housing.

8. The breakout assembly of claim 1, wherein the housing includes a threaded inside surface on the first end for threadingly engaging with an outside surface formed on the retaining member and a threaded outside surface on the second end for threadingly engaging with a threaded inside surface of a nut configured to retain the breakout head within the second end of the housing.

9. The breakout assembly of claim 1, wherein the housing comprises a substantially transparent plastic tube.

10. The breakout assembly of claim 1, further comprising an enclosure including a first section and a second section forming a substantially round outside circumference that extends around the breakout assembly from a front end of the breakout assembly to a back end of the breakout assembly.

11. The breakout assembly of claim 10, wherein the first and second section form a substantially cylindrical inner chamber configured to retain the breakout assembly and retain a sealing-potting material for encapsulating the breakout assembly.

21. The breakout assembly of claim 1, further comprising an enclosure including a first plastic section and a second plastic section forming a substantially round rigid outside circumference that extends around the breakout assembly from a front end of the breakout assembly to a back end of the breakout assembly.

22. The breakout assembly of claim 21, wherein the first and second section of the enclosure form a substantially cylindrical inner chamber configured to retain the breakout assembly and retain a sealing-potting material for encapsulating the breakout assembly.

5. A breakout assembly, comprising:

a housing;

a retaining member configured to attach to a first end of the housing and receive a fiber optic cable; and

a breakout head insertable into a second end of the housing including multiple holes configured to retain furcation tubes through the second end of the housing and pass optical fibers from the fiber optic cable through the furcation tubes, wherein;

the breakout head includes a round casing with substantially round outer side surfaces and substantially flat outer top and bottom surfaces and a round divider that extends across the casing and includes the multiple holes; and

the second end of the housing includes substantially round inner side surfaces, and substantially flat inner top and bottom surfaces configured to slidingly receive the breakout head.

12. A fiber optic breakout head, comprising:

a round casing;

a round divider that extends across the casing;

holes extending through the divider configured to retain furcation tubes and receive different optic fibers from a fiber optic cable through the furcation tubes; and

two substantially round outer sidewalls and two substantially flat outer top and bottom walls extending between the two substantially round sidewalls.

15. The breakout head of claim 12, wherein the round outer sidewalls and two substantially flat outer top and bottom walls insert inside of corresponding round inner sidewalls and two substantially flat inner top and bottom walls inside of a breakout assembly housing.

13. A fiber optic breakout head, comprising:

a casing configured to insert into a breakout assembly housing;

a divider that extends across the casing;

holes extending through the divider configured to retain furcation tubes and receive different optic fibers from a fiber optic cable through the furcation tubes;

a first inner chamber formed in a first end of the casing for receiving the furcation tubes; and

a second inner chamber formed in a second end of the casing, wherein;

first exposed insulation layers of the furcation tubes are configured to extend out through the second inner chamber;

second exposed strengthening layers of the furcation tubes are wrapped around the first insulation layers and spread out inside of the second inner chamber; and

third external insulation layers of the furcation tubes are wrapped around the second strengthening layers and terminate at a bottom end of the second inner chamber.

14. The breakout head of claim 13, wherein the first and second inner chamber are each configured to retain an epoxy for elastically encapsulating individual portions of the furcation tubes.

16. A breakout assembly, comprising:

a housing including a first end and a second end;

a retaining member including a first end to receive a fiber optic cable and a second end attaching to the first end of the housing and retaining exposed stripped layers of the fiber optic cable;

a breakout head configured to insert into the second end of the housing, the breakout head including holes for receiving furcation tubes with different optical fibers from the fiber optic cable, wherein the breakout head includes front and back inner chambers each filled with epoxy to encapsulate and hold the individual furcation tubes inside of the holes.

17. The breakout assembly of claim 16, wherein:

the first end of the housing includes a threaded inside surface for screwing over an outside threaded surface of the retaining member; and

the second end of the housing includes a threaded outside surface for screwing into an inside threaded surface of a nut to hold the breakout head inside of the second end of the housing.

18. The breakout assembly of claim 16, wherein:

the housing, retaining member, and breakout head all have elongated substantially tubular shapes and the retaining member attaches longitudinally to the first end of the housing and the breakout head inserts longitudinally through the second end of the housing.

19. The breakout assembly of claim 16, including an inner chamber located in the second end of the retaining member containing an epoxy for encapsulating and holding the layers of the fiber optic cable.

20. The breakout assembly of claim 16, wherein the housing comprises a substantially clear plastic tube.