Strain relief for pigtail module

Patent metadata

Field	Value
Publication number	US-9297974-B2
Application number	US-201414259684-A
Country	US
Kind code	B2
Filing date	Apr 23, 2014
Priority date	Oct 31, 2011
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

Fiber optic modules having pigtails and related strain relief constructions for the fiber optic harness are disclosed. The fiber optic module assembly has a fiber pigtail exiting module, the assembly includes a main body of the module defining an internal chamber disposed between a first side and a second side, a plurality of fiber optic components disposed at the first side of the module, and a fiber optic harness including the fiber pigtail. The fiber optic harness includes a plurality of optical fibers within a portion of a protective tube on the pigtail portion and a strain-relief assembly for inhibiting movement between the optical fibers and protective tube. Consequently, the strain-relief assembly secures the plurality of optical fibers and the protective tube to the main body of the module.

First claim

We claim:

1. A fiber optic module assembly having a fiber pigtail exiting module, the assembly comprising:
a main body of the module defining an internal chamber disposed between a first side and a second side;
a plurality of fiber optic components disposed at the first side of the module; and
a fiber optic harness including the fiber pigtail and a plurality of optical fibers within a portion of a protective tube and a strain-relief assembly, the strain relief assembly including a first heat shrink and a second heat shrink, the plurality of optical fibers exiting the second side of the main body of the module and the strain-relief assembly securing the plurality of optical fibers and the protective tube to the main body of the module.

2. The fiber optic module of claim 1 , further including a boot, wherein the boot is secured to the main body.

3. The fiber optic module of claim 1 , further including a plurality of strength members within a portion of the protective tube.

4. The fiber optic module of claim 1 , the strain-relief assembly further including a retention body disposed within a boot.

5. The fiber optic module of claim 1 , the strain-relief assembly having a first heat shrink for securing a plurality of strength members with the plurality of optical fibers and a second heat shrink for securing the plurality of strength members and the protective tube to a retention body of the strain-relief assembly.

6. The fiber optic module of claim 1 , the strain-relief assembly having a first heat shrink for securing the plurality of optical fibers to a fiber pass-through and a second heat shrink for securing the fiber pass-through and plurality of optical fibers to a boot.

7. A fiber optic module assembly having a fiber pigtail exiting the module, the assembly comprising:
a main body of the module defining an internal chamber disposed between a first side and a second side;
a plurality of fiber optic components disposed at the first side of the module; and
a fiber optic harness including the fiber pigtail having a plurality of optical fibers with a portion of the plurality of optical fibers disposed within a protective tube and including a strain-relief assembly, the plurality of optical fibers exiting the second side of the main body of the module and the strain-relief assembly securing the plurality of optical fibers and the protective tube to the main body of the module, wherein the strain-relief assembly has a first heat shrink for securing a plurality of strength members with the plurality of optical fibers and a second heat shrink for securing the plurality of strength members and the protective tube to a retention body of the strain-relief assembly.

8. A fiber optic module assembly having a fiber pigtail exiting the module, the assembly comprising:
a main body of the module defining an internal chamber disposed between a first side and a second side;
a plurality of fiber optic components disposed at the first side of the module; and
a fiber optic harness including the fiber pigtail having a plurality of optical fibers with a portion of the plurality of optical fibers being disposed within a portion of a protective tube and including a strain-relief assembly, the plurality of optical fibers exiting the second side of the main body of the module and the strain-relief assembly securing the plurality of optical fibers and the protective tube to the main body of the module, wherein the strain-relief assembly has a first heat shrink for securing the plurality of optical fibers to a fiber pass-through and a second heat shrink for securing the fiber pass-through and plurality of optical fibers to a boot.

9. A method of making a fiber optic module assembly having a fiber pigtail exiting module, including the steps of:
providing a module having a main body defining an internal chamber disposed between a first side and a second side and a plurality of fiber optic components disposed at the first side of the module; and
providing a fiber optic harness including the fiber pigtail having a plurality of optical fibers, a portion of the plurality of optical fibers disposed within a portion of a protective tube and including a strain-relief assembly, the strain relief assembly including a first heat shrink and a second heat shrink, the plurality of optical fibers exiting the second side of the main body of the module and the strain-relief assembly securing the plurality of optical fibers and the protective tube to the main body of the module.

10. The method of claim 9 , further including the step of providing a boot, wherein the boot is secured to the main body.

11. The method of claim 9 , further including providing a plurality of strength members within a portion of the protective tube.

12. The method of claim 9 , the strain-relief assembly further including providing a retention body disposed within a boot.

13. The method of claim 9 , the strain-relief assembly having a first heat shrink for securing a plurality of strength members with the plurality of optical fibers and a second heat shrink for securing the plurality of strength members and the protective tube to a retention body of the strain-relief assembly.

14. The method of claim 9 , the strain-relief assembly having a first heat shrink for securing the plurality of optical fibers to a fiber pass-through and a second heat shrink for securing the fiber pass-through and plurality of optical fibers to a boot.

Assignees

• Corning Optical Comm Llc

Inventors

• Valderrabano Berrones Roberto
• De Los Santos Campos Cesar Alejandro
• Cooke Terry Lee
• Gonzalez Garcia Marco Antonio
• Herrera De Hoyos Enrique Miguel
• Benavides Padron Santos Ramiro

Classifications

• G02B6/4429 Primary

  Means specially adapted for strengthening or protecting the cables · CPC title

• G02B6/44715

  Fan-out devices · CPC title

• G02B6/4477

  with means for strain-relieving to interior strengths element · CPC title

• G02B6/443

  Protective covering · CPC title

• G02B6/4472 Primary

  Manifolds · CPC title