Fiber optic support apparatus

• US 5,754,724 A
• Filed: 11/08/1996
• Issued: 05/19/1998
• Est. Priority Date: 11/08/1996
• Status: Expired due to Fees

• Current Assignee: Antec Incorporated
• Original Assignee: Antec Incorporated
• Inventors: Bechamps, Ronald D., Peterson, Wayne L.
• Primary Examiner(s): Lee, John D.
• Application Number:
  US08/745,266
• Time in Patent Office: 557 Days
• Field of Search: 385/134-137
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4446 Cable boxes, e.g. splicing boxes with two or more multi fibre cables
• CPC Class Codes: G02B 6/4447 with divided shells G02B6/4448 takes precedence
• CPC Class Codes: G02B 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps

Abstract

Support or frame for supporting one or more interconnections between optical fibers, the support is provided with an indentation for receiving buffer tubes of one of the optical fiber cables providing one of the interconnected optical fibers. An assembly or kit including the foregoing support, one or more fusion splice organizers, one or more bulkhead members for receiving and mounting an optical fiber connector for interconnecting a pair of optical fibers, one or more fasteners for fastening the bulkhead member or members to the support, and one or more fasteners for fastening the support to a support member. Alternative support or frame including a clamp for clamping one or more optical fiber splice trays. An enclosure may be included for being fastened around the support or frames to provide mechanical and environmental protection to the support and the optical fiber interconnections.

Claims

1. Apparatus for supporting at least one interconnection between at least one optical fiber contained in a first optical fiber cable and at least one optical fiber contained in at least a second optical fiber cable, at least the first optical fiber cable containing at least one internal tube containing a plurality of optical fibers and at least one internal strength member, comprising:

support means for supporting the at least one interconnection between the at least one optical fiber contained in the first optical fiber cable and the at least one optical fiber contained in the second optical fiber cable; and

said support means provided with an indentation for receiving the at least one internal tube and the at least one internal strength member contained in the first optical fiber cable, said indentation extending transversely across the entirety of said support means and having open ends open to the exterior of said support means.

2. The apparatus according to claim 1 wherein the first optical fiber cable contains a central strength member and a plurality of buffer tubes each containing a plurality of optical fibers, and wherein said indentation is for receiving the plurality of buffer tubes and the central strength member contained in the first optical fiber cable.

3. The apparatus according to claim 1 wherein the first optical fiber cable includes a central core tube containing a plurality of optical fibers and a pair of internal strength members, and wherein said indentation is for receiving the central core tube and the pair of internal strength members.

4. The apparatus according to claim 1 wherein said support means is provided with routing means for receiving and routing optical fibers contained in the second optical fiber cable around said support means to store optical fibers contained in the second optical fiber cable on said support means.

5. The apparatus according to claim 4 wherein said routing means include a plurality of routing members and wherein said support means comprise a body including a lower portion providing a generally planar mounting wall, an upper portion providing a generally planar flange substantially planar with said mounting wall, and an intermediate portion intermediate said mounting wall and said flange and extending inwardly from said mounting wall and said flange to provide said indentation;

and wherein a portion of said routing members are mounted on said mounting wall and a portion of said routing members are mounted on said flange.

6. The apparatus according to claim 1 wherein said apparatus further includes openable and closable enclosure means, said enclosure means including an interior mounting wall and wherein said support means is mounted to said interior mounting wall and wherein said enclosure means is for being fastened closed over said support means to provide mechanical and environmental protection to the support means and to the at least one interconnection between the at least one optical fiber contained in the first optical fiber cable and the at least one optical fiber contained in the second optical fiber cable.

7. The apparatus according to claim 6 wherein the second optical fiber cable contains a central strength member and a plurality of buffer tubes with each buffer tube containing a plurality of optical fibers, and wherein said interior mounting wall is provided with a plurality of second routing members for receiving the buffer tubes contained in the second optical fiber cable and for routing the buffer tubes contained in the second optical fiber cable around said interior wall to store the buffer tubes contained in said second optical fiber cable on said interior mounting wall.

8. The apparatus according to claim 6 wherein the second optical fiber cable includes a central core tube containing a plurality of optical fibers and wherein said interior mounting wall is provided with a plurality of second routing members for receiving the central core tube contained in the second optical fiber cable and for routing the central core tube around said interior mounting wall to store the central core tube contained in the second optical fiber cable on said interior mounting wall.

9. Apparatus for supporting interconnections between the optical fibers contained in an express optical fiber cable and optical fibers contained in a drop optical fiber cable, the express optical fiber cable and the drop optical fiber cable each containing at least one internal tube containing a plurality of optical fibers and at least one internal strength member, comprising:

support means for supporting interconnections between the optical fibers contained in the express optical fiber cable and optical fibers contained in the drop optical fiber cable; and

said support means provided with a longitudinally extending indentation extending transversely across the entirety of said support means and having open ends open to the exterior of said support means, said indentation for receiving the at least one internal tube and the at least one internal strength member contained in the express optical fiber cable.

10. The apparatus according to claim 9 wherein the express optical fiber cable contains a central strength member and a plurality of buffer tubes each containing a plurality of optical fibers, and wherein said indentation is for receiving the central strength member and the plurality of buffer tubes contained in the express optical fiber cable.

11. The apparatus according to claim 9 wherein the drop optical fiber cable includes a pair of internal strength members and a central core tube containing a plurality of optical fibers and wherein said indentation is for receiving the pair of internal strength members and the central core tube.

12. The apparatus according to claim 9 wherein said support means is provided with routing means for receiving and routing optical fibers contained in the drop optical fiber cable around said support means to store optical fibers contained in the drop optical fiber cable on said support means.

13. The apparatus according to claim 12 wherein said routing means include a plurality of routing members and wherein said support means comprise a body including a generally lower portion providing a generally planar mounting wall, an upper portion providing a generally planar flange substantially planar with said mounting wall, and an intermediate portion intermediate said mounting wall and said flange and extending inwardly from said mounting wall and said flange to provide said indentation;

and wherein a portion of said routing members are mounted on said mounting wall and a portion of said routing members are mounted on said flange.

14. The apparatus according to claim 9 wherein the interconnections between the optical fibers contained in the express optical fiber cable and the optical fibers contained in the drop optical fiber cable are fusion splices and wherein said support means further includes fusion splice organizer means provided with a plurality of substantially parallel indentations for receiving the fusion splices.

15. The apparatus according to claim 14 wherein said support means is provided with a mounting surface and wherein said fusion splice organizer means comprise a plurality of single fusion splice organizers mounted adhesively to said mounting surface.

16. The apparatus according to claim 9 wherein said support means includes optical fiber connector mounting means for receiving and mounting a plurality of optical fiber connectors each for interconnecting an optical fiber contained in the express optical fiber cable and an optical fiber contained in the drop optical fiber cable.

17. The apparatus according to claim 16 wherein said support means includes a support wall provided with first mounting means and wherein said optical fiber connector mounting means comprise a plurality of bulkhead members provided with second mounting means for cooperating with said first mounting means to mount said plurality of bulkhead members to said support wall, and wherein said bulkhead members are provided with a plurality of openings for wedgedly receiving the optical fiber connectors.

18. The apparatus according to claim 17 wherein said first mounting means comprise pairs of staggered openings and wherein said second mounting means comprise pairs of staggered mounting members for being inserted into said pairs of staggered openings and wedged into engagement with said support wall.

19. The apparatus according to claim 9 wherein said apparatus further comprise openable and closable enclosure means including an interior mounting wall and wherein said support means is mounted to said interior mounting wall, said enclosure means for being fastened closed over said support means to provide said support means and said interconnections with mechanical and environmental protection.

20. The apparatus according to claim 19 wherein said enclosure means includes a base member provided with said interior mounting wall and wherein said interior mounting wall is provided with second routing means for receiving and routing around said interior mounting wall the internal tubes contained in the drop optical fiber cable to store the internal tubes contained in the drop optical fiber cable on said interior mounting wall.

21. The apparatus according to claim 20 wherein said enclosure means is provided with strand mounting means for mounting said enclosure means aerially to a metal cable or strand extending between poles.

22. The apparatus according to claim 20 wherein the express optical fiber cable and the drop optical fiber cable each includes an internal strength member and wherein said interior mounting wall is provided with internal strength member mounting means for mounting the internal strength members to said interior mounting wall.

23. The apparatus according to claim 20 wherein the express optical fiber cable and the drop optical fiber cable each includes an outer protective sheath and wherein said interior mounting wall is provided with outer protective sheath mounting means for surrounding and gripping the outer protective sheaths to mount the express optical fiber cable and the drop optical fiber cable to said interior mounting wall.

24. Assembly or kit of apparatus for supporting at least one interconnection between at least one optical fiber contained in a first optical fiber cable and at least one optical fiber contained in at least a second optical fiber cable, at least the first optical fiber cable containing at least one internal tube containing a plurality of optical fibers and at least one internal strength member, comprising:

a frame for supporting the at least one interconnection between the at least one optical fiber contained in the first optical fiber cable and the at least one optical fiber contained in the second optical fiber cable, said frame provided with an indentation for receiving the at least one internal tube and the at least one internal strength member contained in the first optical fiber cable, said indentation extending transversely across the entirety of said frame and having open ends open to the exterior of said frame;

routing members mountable to said frame for receiving and routing optical fibers contained in the second optical fiber cable and for storing the optical fibers contained in the second optical fiber cable on said frame;

at least one fusion splice organizer mountable to said frame and provided with a plurality of substantially parallel indentations for receiving at least one fusion splice between at least one optical fiber contained in the first optical fiber cable and at least one optical fiber contained in the second optical fiber cable;

at least one bulkhead member provided with at least one opening for wedgedly receiving and mounting at least one optical fiber connector for interconnecting at least one optical fiber contained in the first optical fiber cable and at least one optical fiber contained in the second optical fiber cable;

at least one first fastener for fastening said bulkhead member to said frame; and

at least one second fastener for fastening said frame to a support member.

25. The assembly or kit according to claim 24 wherein said assembly or kit further comprises a container for receiving and containing said at least one fusion splice organizer, said at least one bulkhead member, said at least one first fastener and said at least one second fastener.

26. The assembly or kit according to claim 24 wherein said frame is provided with at least a first pair of staggered openings and wherein said at least one bulkhead member is provided with a pair of staggered mounting members for being inserted into said at least first pair of staggered openings and wedged into engagement with said frame to mount said at least one bulkhead member to said frame.

27. The assembly or kit according to claim 24 wherein said frame includes a body including a lower portion providing a substantially planar mounting wall, an upper portion providing a substantially planar flange substantially planar with said mounting wall, and an intermediate portion intermediate said lower and upper portions and extending inwardly therefrom to provide said indentation.

28. Apparatus for supporting and containing interconnections between a first optical fiber cable and a second optical fiber cable and wherein at least the first optical fiber cable contains at least one internal tube containing a plurality of optical fibers and at least one internal strength member, comprising:

enclosure means including a base and a cover for being fastened closed over said base, said base including opposed ends, each end provided with a pair of entry/exit ports including self-sizing grommets for sealingly engaging optical fiber cables entering and exiting said entry/exit ports, and said base provided with an interior mounting wall; and

support means mounted to said interior mounting wall for supporting interconnections between optical fibers contained in the optical fiber cables, said support means provided with an indentation for receiving the at least one internal tube and the at least one internal strength member and said indentation extending transversely across the entirety of said support means and having open ends open to the exterior of said support means.

29. The apparatus according to claim 28 wherein the first optical fiber cable includes a central core tube containing a plurality of optical fibers and a pair of internal strength members, and wherein said indentation is for receiving the central core tube and the pair of internal strength members.

30. The apparatus according to claim 28 wherein said support means is provided with routing means for receiving and routing optical fibers contained in one or more of the optical fiber cables around said support means to store the optical fibers on said support means.

31. The apparatus according to claim 30 wherein said routing means include a plurality of routing members and wherein said support means comprise a body including a lower portion providing a generally planar mounting wall, an upper portion providing a generally planar flange substantially planar with said mounting wall, and an intermediate portion intermediate said generally planar mounting wall and said flange and extending inwardly from said generally planar mounting wall and said flange to provide an indentation for receiving optical fibers contained in at least one of the optical fiber cables;

and wherein a portion of said routing members are mounted on said generally planar mounting wall and a portion of said routing members are mounted on said flange.

32. The apparatus according to claim 28 wherein one of the optical fiber cables contains a central strength member and a plurality of buffer tubes with each buffer tube containing a plurality of optical fibers, and wherein said interior mounting wall is provided with a plurality of second routing members for receiving the buffer tubes and for routing the buffer tubes around and storing the buffer tubes on said interior mounting wall.

33. The apparatus according to claim 28 wherein the interconnections between optical fibers are contained in at least one optical fiber splice tray, and wherein said support means is provided with clamping means for clamping the at least one optical fiber splice tray to said support means.

34. The apparatus according to claim 33 wherein the interconnections between optical fibers are contained in a plurality of optical fiber splice trays, wherein said support means includes a support base, and wherein said clamping means include a pair of opposed flexible clamping members extending outwardly from said support base and spaced apart sufficiently to receive said optical fiber splice trays in clamping engagement.

35. The apparatus according to claim 34 wherein said clamping members are provided with at least one pair of opposed spaced apart engaging members for engaging the optical fiber splice trays in said clamping engagement, and wherein said engaging members extend inwardly towards each other and taper inwardly outwardly from said support base to cause said engaging members to engage the plurality of optical fiber support trays in clamping engagement as said clamping members flex outwardly away from each other upon receipt of the plurality of optical fiber splice trays.

36. The apparatus according to claim 35 wherein said clamping members are provided with two pairs of said engaging members.

37. Apparatus for supporting interconnections between optical fibers contained in a plurality of optical fiber splice trays, comprising:

support means including a support base;

clamping means mounted on said support base and said clamping means including a pair of opposed flexible clamping members extending outwardly from said support base and spaced apart sufficiently to receive the plurality of optical fiber splice trays therebetween in wedged clamping engagement, said clamping members provided with at least one pair of opposed spaced apart engaging members for engaging the optical fiber splice trays in said clamping engagement, and wherein said engaging members extend inwardly towards each other and taper downwardly outwardly from said support base to cause said engaging members to engage the plurality of optical fiber splice trays in clamping engagement as said clamping members flex outwardly away from each other upon receipt of the plurality of optical fiber splice trays.

38. The apparatus according to claim 37 wherein said clamping members are provided with two pairs of said engaging members.

39. The apparatus according to claim 37 wherein said support base is provided with a plurality of routing members for receiving and storing on said base optical fibers between which the interconnections contained in the at least one optical fiber splice tray are made.

40. The apparatus according to claim 37 wherein said support base includes opposed ends and wherein each end is provided with a pair of vertically aligned and inwardly extending V-shaped members for receiving optical fiber cables of different diameters, the optical fiber cables containing optical fibers between which the interconnections contained in the at least one optical fiber splice tray are made.

41. The apparatus according to claim 40 wherein each of said V-shaped members includes top and bottom portions and wherein through holes are provided through said support base adjacent said top and bottom portions, said through holes for receiving a pipe clamp for clamping an optical fiber member residing in the V-shaped member to the support base.

42. The apparatus according to claim 41 wherein the pipe clamp includes a circular clamping member and wherein said V-shaped member includes a curved, generally semi-circular, rearward portion for engagement by a portion of the circular clamping member to facilitate clamping of an optical fiber cable to said V-shaped member by the pipe clamp.

43. The apparatus according to claim 37 wherein said support means is provided with mounting means for mounting said support means to a support member.

44. The apparatus according to claim 43 wherein said mounting means include at least one pair of openings extending through said support base and at least a pair of self-tapping screws for extending through said pair of openings and mounting said support means to the support member.

45. The apparatus according to claim 37 wherein the optical fibers are contained in optical fiber cables each including at least one internal strength member, and wherein said support base is provided with at least two internal strength member mounting members for mounting the internal strength members to said support base.

46. The apparatus according to claim 37 wherein said support base is provided with a plurality of laterally spaced and outwardly extending clamping members provided with edges residing in the same plane and substantially parallel to said support base, said edges for engaging the at least one optical fiber splice tray and for stabilizing the at least one optical fiber splice tray upon being clamped between said clamping members and to facilitate orientation of said at least one optical fiber splice tray in a substantially parallel orientation with said support base.

47. Apparatus according to claim 37 wherein said clamping members are provided with through holes for receiving a mounting strap for encircling and mounting said at least one optical fiber splice tray to said support means upon said at least one optical fiber splice tray being clamped between said clamping members.