Granted Patent B2

US 7,340,145 · App. 11/584,958 · Granted Mar 4, 2008

Abstract

Claims (60)

1. A fiber optic splice storage apparatus, comprising:

a central segment defining a splice chamber configured to receive a plurality of fiber optic splices;

a first slack fiber storage segment pivotally connected to a first end of the central segment and having an open position extending from the first end away from the central segment and a closed position extending over the central segment;

a second slack fiber storage segment pivotally connected to a second end of the central segment, opposite the first end, the second slack fiber storage segment having an open position extending from the second end away from the central segment and a closed position extending over the same side of the central segment as the first slack fiber storage segment;

a first plurality of slack fiber guide members on the first slack fiber storage segment configured to receive and retain a first loop of optical fibers; and

a second plurality of slack fiber guide members on the second slack fiber storage segment configured to receive and retain a second loop of optical fibers.

2. The fiber optic splice storage apparatus of claim 1 , further comprising first and second fiber guide members on the central segment in the splice chamber, wherein the first fiber guide member and one of the first plurality of slack fiber guide members define a first fiber path extending from the central segment to the first slack fiber storage segment and wherein the second fiber guide member and one of the second plurality of slack fiber guide members define a second fiber path extending from the central segment to the second slack fiber storage segment.

3. The fiber optic splice storage apparatus of claim 2 , wherein the first fiber guide member comprises a fiber entrance to the splice chamber and the second fiber guide member comprises a fiber exit to the splice chamber.

4. The fiber optic splice storage apparatus of claim 2 , wherein the central segment further includes a third fiber guide member and a fourth fiber guide member and wherein the third fiber guide member and a second one of the first plurality of slack fiber guide members define a third fiber path extending from the central segment to the first slack fiber storage segment and wherein the fourth fiber guide member and a second one of the second plurality of slack fiber guide members define a fourth fiber path extending from the central segment to the second slack fiber storage segment, an intersection of the first and third fiber paths defining a first fiber cross-over location proximate an intermediate portion of the first end to limit bending of optical fibers extending along the first and third fiber paths when the first slack fiber storage segment is moved from its opened position to its closed position and the second and fourth fiber paths defining a second fiber cross-over location proximate an intermediate portion of the second end to limit bending of optical fibers extending along the second and fourth fiber paths when the second slack fiber storage segment is moved from its opened position to its closed position.

5. The fiber optic splice storage apparatus of claim 4 , wherein the third fiber guide member and the further fiber guide member comprise a splice receiving member.

6. The fiber optic splice storage apparatus of claim 4 , wherein the first and second one of the first plurality of slack fiber guide members and the first and second one of the second plurality of slack fiber guide members each comprise an opposed pair of guide members.

7. The fiber optic splice storage apparatus of claim 4 , further comprising a storage apparatus mounting member on a third end of the central segment, the third end extending from the first end to the second end, the storage apparatus mounting member being configured to allow the fiber optic splice storage apparatus to be pivotally mounted to an enclosure.

8. The fiber optic splice storage apparatus of claim 7 , wherein the first fiber guide member on the central segment comprises a fiber entrance to the splice chamber on the third end of the central segment and wherein the second fiber guide member on the central segment comprises a fiber exit to the splice chamber on the third end of the central segment and wherein the storage apparatus mounting member is positioned between the fiber entrance and the fiber exit.

9. The fiber optic splice storage apparatus of claim 4 , further comprising a first hinge pivotally connecting the first slack fiber storage segment to the central segment and a second hinge pivotally connecting the second slack fiber storage segment to the central segment.

10. The fiber optic splice storage apparatus of claim 9 , wherein the central segment, the first slack fiber storage segment and the second slack fiber storage segment comprise polycarbonate.

11. The fiber optic splice storage apparatus of claim 9 , wherein the first and second hinges are living hinges and wherein the central segment, the first slack fiber storage segment and the second slack fiber storage segment comprise polypropylene (PP).

12. The fiber optic splice storage apparatus of claim 4 , wherein the fiber optic splice storage apparatus comprises a splice tray.

13. The fiber optic splice storage apparatus of claim 4 , wherein, when the first and second slack fiber storage segments are in their closed positions, the second slack fiber storage segment extends over the first slack fiber storage segment.

14. The fiber optic splice storage apparatus of claim 4 , further comprising:

a first plurality of optical fibers extending along the first fiber path and the third fiber path and being looped on the first slack fiber storage segment so that the first plurality of optical fibers crosses over itself proximate the first fiber cross-over location; and

a second plurality of optical fibers extending along the second fiber path and the fourth fiber path and being looped on the second slack fiber storage segment so that the second plurality of optical fibers crosses over itself proximate the second fiber cross-over location.

15. The fiber optic splice storage apparatus of claim 14 , wherein ones of the first plurality of optical fibers are spliced to corresponding ones of the second plurality of optical fibers to define the plurality of fiber optic splices.

16. The fiber optic splice storage apparatus of claim 14 , wherein the first plurality of optical fibers is releasably retained with a loop therein on the first slack fiber storage segment by the first and second one of the first plurality of slack fiber guide members and wherein the second plurality of optical fibers is releasably retained with a loop therein on the second slack fiber storage segment by the first and second one of the second plurality of slack fiber guide members.

17. The fiber optic splice storage apparatus of claim 14 , wherein locations of the first fiber cross-over point and the second fiber cross-over point are selected to provide a minimum bend radius for the first and second plurality of optical fibers when the first and second slack fiber storage segments are in their closed positions.

18. The fiber optic splice storage apparatus of claim 1 , wherein the first and/or second slack fiber storage segment comprise an integrated hinging cover extending over the central segment.

19. A tri-fold fiber splice tray, comprising:

a central segment defining a splice chamber configured to receive a plurality of fiber optic splices;

a first slack fiber storage segment pivotally connected to a first end of the central segment and having an open position extending from the first end away from the central segment and a closed position extending over the central segment;

a second slack fiber storage segment pivotally connected to a second end of the central segment, opposite the first end, the second slack fiber storage segment having an open position extending from the second end away from the central segment and a closed position extending over the central segment;

tray mounting legs extending from a third end of the central segment, the third end extending from the first end to the second end, the tray mounting legs being configured to allow the splice tray to be pivotally mounted to an enclosure;

a fiber entrance to the splice chamber on the third end of the central segment between the tray mounting legs and the second end;

a fiber exit to the splice chamber on the third end of the central segment between the tray mounting legs and the first end;

a first and second slack fiber guide member on the first slack fiber storage segment configured to receive and retain a loop of optical fibers, the fiber entrance and the first slack fiber guide member defining a first fiber path extending from the central segment to the first slack fiber storage segment;

a third and fourth slack fiber guide member on the second slack fiber storage segment configured to receive and retain a loop of optical fibers, the fiber exit and the third slack fiber guide member defining a second fiber path extending from the central segment to the second slack fiber storage segment; and

a splice receiving member on the central segment, wherein the splice receiving member and the second slack fiber guide member define a third fiber path extending from the central segment to the first slack fiber storage segment and wherein the splice receiving member and the fourth slack fiber guide member define a fourth fiber path extending from the central segment to the second slack fiber storage segment, an intersection of the first and third fiber paths defining a first fiber cross-over location proximate an intermediate portion of the first end to limit bending of optical fibers extending along the first and third fiber paths when the first slack fiber storage segment is moved from its opened position to its closed position and the second and fourth fiber paths defining a second fiber cross-over location proximate an intermediate portion of the second end to limit bending of optical fibers extending along the second and fourth fiber paths when the second slack fiber storage segment is moved from its opened position to its closed position.

20. A method of storing slack fiber in a fiber optic splice storage apparatus, the method comprising:

storing a loop of a first plurality of fibers on a first slack fiber storage segment of the splice storage apparatus pivotally connected to a first end of a central segment of the splice storage apparatus;

storing a loop of a second plurality of fibers on a second slack fiber storage segment of the splice storage apparatus pivotally connected to a second end of the central segment, opposite the first end;

folding the first slack fiber storage segment to a closed position extending over the central segment; and

folding the second slack fiber storage segment to a closed position extending over the same side of the central segment as the first slack fiber storage segment.

21. The method of claim 20 , wherein storing the loop of the first plurality of fibers includes twisting the first plurality of fibers to form the loop with a fiber cross-over location positioned proximate a midpoint of the connection between the first slack fiber storage segment and the central segment and wherein storing the loop of the second plurality of fibers includes twisting the second plurality of fibers to form the loop with a fiber cross-over location positioned proximate a midpoint of the connection between the second slack fiber storage segment and the central segment.

22. The method of claim 21 , wherein storing the loop of the first plurality of fibers includes positioning a first segment of the first plurality of fibers in a first slack fiber guide member on the first slack fiber storage segment and a second segment of the first plurality of fibers in a second slack fiber guide member on the first slack fiber storage segment and wherein storing the loop of the second plurality of fibers includes positioning a first segment of the second plurality of fibers in a first slack fiber guide member on the second slack fiber storage segment and a second segment of the second plurality of fibers in a second slack fiber guide member on the second slack fiber storage segment.

23. The method of claim 22 , further comprising:

coupling one of the first plurality of fibers to a selected one of the second plurality of fibers to form a splice therebetween; and

positioning the splice in a splice receiving member on the central segment.

24. The method of claim 23 , wherein coupling one of the first plurality of fibers comprises:

moving the first and second slack fiber storage elements to their open positions;

removing a length of slack fiber of the one of the first plurality of fibers from the first and second slack fiber guide members on the first slack fiber storage element;

removing a length of slack fiber of the selected one of the second plurality of fibers from the first and second slack fiber guide members on the second slack fiber storage element; and

splicing ends of the removed lengths of slack fiber of the one of the first plurality of fibers and the selected one of the second plurality of fibers to form the splice therebetween.

25. The method of claim 24 , wherein splicing ends of the removed lengths is followed by:

re-storing the removed length of slack fiber of the one of the first plurality of fibers to the loop of the first plurality of fibers;

re-storing the removed length of slack fiber of the selected one of the second plurality of fibers to the loop of the second plurality of fibers;

folding the first slack fiber storage segment to the closed position extending over the central segment; and

folding the second slack fiber storage segment to the closed position extending over the central segment.

26. The method of claim 25 , wherein:

removing the length of slack fiber of the one of the first plurality of fibers includes removing the loop of the first plurality of fibers from the first slack fiber storage element;

removing the length of slack fiber of the selected one of the second plurality of fibers includes removing the loop of the second plurality of fibers from the second slack fiber storage element;

re-storing the removed length of slack fiber of the one of the first plurality of fibers to the loop of the first plurality of fibers includes re-storing the loop of the first plurality of fibers to the first slack fiber storage segment; and

re-storing the removed length of slack fiber of the selected one of the second plurality of fibers includes re-storing the loop of the second plurality of fibers to the second slack fiber storage segment.

Assignments (12)