Splice enclosure arrangement for fiber optic cables

• US 8,885,998 B2
• Filed: 12/09/2011
• Issued: 11/11/2014
• Est. Priority Date: 12/09/2010
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Marcouiller, Thomas, Rudenick, Paula
• Primary Examiner(s): Stahl, Mike
• Application Number:
  US13/315,570
• Publication Number:
  US 20120177328A1
• Time in Patent Office: 1,068 Days
• Field of Search: None
• US Class Current: 385/100
• CPC Class Codes: G02B 6/2558 Reinforcement of splice joint
• CPC Class Codes: G02B 6/4471 Terminating devices demountable connectors G02B6/3807; Cable clamps
• CPC Class Codes: G02B 6/4477 with means for strain-relieving to interior strengths element

Abstract

An optical fiber cable includes a first cable segment; a second cable segment; and a splice enclosure. The first cable segment can have a different configuration than the second cable segment. The splice enclosure is coupled to the strength member and strength component of the first cable segment and the second cable segment. One example splice enclosure includes a first enclosure member and a second enclosure member. The strength component can be glued to one end of the splice enclosure and the strength member can be clamped or otherwise retained by another end of the splice enclosure.

Claims

1. An optical fiber cable comprising:

a first cable segment including at least one optical fiber enclosed in a first jacket, the first cable segment also including at least one strength member, each strength member being sufficiently flexible to enable the strength member to be wrapped 360°

around a ten millimeter diameter mandrel;

a second cable segment including at least one optical fiber enclosed in a second jacket, the second cable segment also including at least one strength component having anti-buckling characteristics, the optical fiber of the second cable segment being spliced to the optical fiber of the first cable segment at a splice location;

a splice enclosure coupled to the at least one strength member of the first cable segment and to the at least one strength component of the second cable segment, the splice enclosure mounted around the splice location; and

an overmolded layer enclosing the splice enclosure.

2. The optical fiber cable as claimed in claim 1, wherein each strength member of the first cable segment includes a flat layer of reinforcing elements embedded within a binder.

3. The optical fiber cable as claimed in claim 1, wherein each strength component of the second cable segment includes glass filaments impregnated and bonded together with a resin.

4. The optical fiber cable as claimed in claim 1, wherein the at least one strength member of the first cable segment is coupled to the splice enclosure in a different manner than the at least one strength component of the second cable segment.

5. An optical fiber cable comprising:

a first cable segment including at least one optical fiber enclosed in a first jacket, the first cable segment also including at least one strength member;

a second cable segment including at least one optical fiber enclosed in a second jacket, the second cable segment also including at least one strength component that is less flexible than the at least one strength member of the first cable segment, the optical fiber of the second cable segment being spliced to the optical fiber of the first cable segment;

a splice enclosure mounted over the spliced optical fibers of the first and second cable segments, the splice enclosure including a first enclosure member and a second enclosure member, the first enclosure member defining at least one receiving passage configured to receive the at least one strength component of the second cable segment, the first enclosure member and the second enclosure member cooperating to retain the at least one strength member of the first cable segment, wherein the first enclosure member and the second enclosure member cooperate to form an attachment arrangement including protrusions and notches.

6. The optical fiber cable as claimed in claim 5, wherein the first enclosure member includes the notches of the attachment arrangement and the second enclosure member includes the protrusions of the attachment arrangement.

7. The optical fiber cable as claimed in claim 5, further comprising an enclosure sleeve that is configured to mount over and surround the second enclosure member and a portion of the first enclosure member.

8. The optical fiber cable as claimed in claim 7, wherein the enclosure sleeve is crimped to the first and second enclosure members.

9. The optical fiber cable as claimed in claim 5, wherein the at least one strength component of the second cable segment is glued in the receiving passage of the first enclosure member.

10. The optical fiber cable as claimed in claim 5, further comprising a first length of tubing extending over at least a portion of the first cable segment and extending at least partially into a first end of the splice enclosure.

11. The optical fiber cable as claimed in claim 10, further comprising a second length of tubing extending over at least a portion of the second cable segment and extending at least partially into a second end of the splice enclosure.

12. An optical fiber cable comprising:

a first cable segment including at least one optical fiber enclosed in a first jacket, the first cable segment also including at least one strength member;

a second cable segment including at least one optical fiber enclosed in a second jacket, the second cable segment also including at least one strength component that is less flexible than the at least one strength member of the first cable segment, the optical fiber of the second cable segment being spliced to the optical fiber of the first cable segment;

a splice enclosure mounted over the spliced optical fibers of the first and second cable segments, the splice enclosure including a first enclosure member and a second enclosure member, the first enclosure member defining at least one receiving passage configured to receive the at least one strength component of the second cable segment, the first enclosure member and the second enclosure member cooperating to retain the at least one strength member of the first cable segment, wherein the first enclosure member includes first grip members and the second enclosure member includes second grip members that cooperate with the first grip members to retain the at least one strength member of the first cable segment.

13. The optical fiber cable as claimed in claim 12, wherein the first and second grip members define ramped teeth.

14. An optical fiber cable comprising:

a first cable segment including at least one optical fiber enclosed in a first jacket, the first cable segment also including at least one strength member;

a second cable segment including at least one optical fiber enclosed in a second jacket, the second cable segment also including at least one strength component that is less flexible than the at least one strength member of the first cable segment, the optical fiber of the second cable segment being spliced to the optical fiber of the first cable segment;

a splice enclosure mounted over the spliced optical fibers of the first and second cable segments, the splice enclosure including a first enclosure member and a second enclosure member, the first enclosure member defining at least one receiving passage configured to receive the at least one strength component of the second cable segment, the first enclosure member and the second enclosure member cooperating to retain the at least one strength member of the first cable segment; and

an enclosure sleeve that is configured to mount over and surround the second enclosure member and a portion of the first enclosure member.

15. The optical fiber cable of claim 14, wherein the first enclosure member includes first grip members and the second enclosure member includes second grip members that cooperate with the first grip members to retain the at least one strength member of the first cable segment.

16. The optical fiber cable of claim 14, wherein the first enclosure member and the second enclosure member cooperate to form an attachment arrangement including protrusions and notches.

17. The optical fiber cable of claim 14, wherein the at least one strength component of the second cable segment is glued within the splice enclosure.

18. The optical fiber cable of claim 14, wherein the enclosure sleeve is crimped to the first and second enclosure members.

19. An optical fiber cable comprising:

a first cable segment including at least one optical fiber enclosed in a first jacket, the first cable segment also including at least one strength member;

a second cable segment including at least one optical fiber enclosed in a second jacket, the second cable segment also including at least one strength component that is less flexible than the at least one strength member of the first cable segment, the optical fiber of the second cable segment being spliced to the optical fiber of the first cable segment;

a splice enclosure mounted over the spliced optical fibers of the first and second cable segments, the splice enclosure including a first enclosure member and a second enclosure member, the first enclosure member defining at least one receiving passage configured to receive the at least one strength component of the second cable segment, the first enclosure member and the second enclosure member cooperating to retain the at least one strength member of the first cable segment; and

a first length of tubing extending over at least a portion of the first cable segment and extending at least partially into a first end of the splice enclosure.

20. The optical fiber cable as claimed in claim 19, further comprising a second length of tubing extending over at least a portion of the second cable segment and extending at least partially into a second end of the splice enclosure.