Mid-span breakout with potted closure

• US 7,424,189 B2
• Filed: 07/21/2006
• Issued: 09/09/2008
• Est. Priority Date: 03/09/2006
• Status: Expired due to Fees

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: ADC Telecommunications Incorporated (TE Connectivity Limited)
• Inventors: Lu, Yu, Gniadek, Jeff
• Primary Examiner(s): Wood; Kevin S
• Assistant Examiner(s): Bedtelyon; John M
• Application Number:
  US11/490,603
• Publication Number:
  US 20070212003A1
• Time in Patent Office: 781 Days
• Field of Search: 385100-114
• US Class Current: 385/100
• CPC Class Codes: G02B 6/2558 Reinforcement of splice joint
• CPC Class Codes: G02B 6/4433 Double reinforcement laying in straight line with optical transmission element
• CPC Class Codes: G02B 6/4475 with provision for lateral branching G02B6/4431 takes precedence

Abstract

A breakout assembly includes a distribution cable, a tether cable, and at least one optical fiber. The distribution cable includes a breakout location having a length. The tether cable is secured to the distribution cable. The optical fiber extends along the length of the breakout location from the distribution cable to the tether cable. A polymeric tube including ring-type reinforcements extends along the length of the breakout location and encloses the optical fiber.

Claims

1. A breakout assembly comprising:

a distribution cable including a breakout location having a length;

a tether cable secured to the distribution cable;

at least one length of optical fiber extending along the length of the breakout location from the distribution cable to the tether cable;

a hollow polymeric tube having an inner diameter and an outer diameter, the polymeric tube including ring-type reinforcements embedded in the polymeric tube between the inner and outer diameters, the polymeric tube extending along the length of the breakout location and enclosing the distribution cable and the length of optical fiber.

2. The breakout assembly of claim 1, wherein one end of the polymeric tube is potted to the distribution cable on one side of the breakout location and an opposite end of the polymeric tube is potted to the tether cable and distribution cable on an opposite side of the breakout location.

3. The breakout assembly of claim 1, wherein the ring-type reinforcements include discrete metal rings.

4. The breakout assembly of claim 1, wherein the ring-type reinforcements include a coil spring.

5. The breakout assembly of claim 1, wherein the polymeric tube includes opposing ends sealed by potting material.

6. The breakout assembly of claim 1, wherein the ring-type reinforcements are embedded in the polymeric tube.

7. The breakout assembly of claim 1, wherein the polymeric tube is sufficiently flexible to enable the distribution cable and the tether cable to be readily stored on a spool.

8. The breakout assembly of claim 1, wherein the at least one length of optical fiber has an excess fiber length range of about 2-5%.

9. A method comprising:

removing an outer jacket from a distribution cable at a breakout location;

accessing an optical fiber from the distribution cable;

fusing the optical fiber from the distribution cable to an optical fiber of a tether cable to form a fused length of optical fiber; and

positioning a hollow polymeric tube having an inner diameter and an outer diameter around the distribution cable and the fused length of optical fiber at the breakout location, the polymeric tube including ring-type reinforcements embedded between the inner diameter and the outer diameter of the polymeric tubes.

10. The method of claim 9, further comprising:

potting opposing ends of the polymeric tube to seal the fused length of optical fiber within the polymeric tube.

11. The method of claim 9, further comprising:

winding the distribution cable on a spool, wherein the tether cable and the polymeric tube are secured to the distribution cable.