One-piece fiber optic receptacle

• US 7,207,727 B2
• Filed: 10/22/2004
• Issued: 04/24/2007
• Est. Priority Date: 10/22/2004
• Status: Active Grant

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Cable Systems LLC (Corning Incorporated)
• Inventors: Tran, Hieu V., Liu, Xin, Luther, James P., Theuerkorn, Thomas, Yow, Charles A. Jr.
• Primary Examiner(s): CONNELLY CUSHWA, MICHELLE R
• Application Number:
  US10/971,891
• Publication Number:
  US 20060088248A1
• Time in Patent Office: 914 Days
• Field of Search: 385/55, 385/56, 385/72, 385/92, 385/94
• US Class Current: 385/76
• CPC Class Codes: G02B 6/3821 with axial spring biasing or loading means G02B6/3847 takes precedence
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3875 Floatingly supported sleeves
• CPC Class Codes: G02B 6/389 characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type

Abstract

A one-piece fiber optic receptacle is provided for aligning and optically connecting a plug ferrule with a back-side ferrule of like configuration. The fiber optic receptacle includes a receptacle housing defining an internal cavity opening through an external end and an opposed internal end, an alignment sleeve disposed within the internal cavity and received within the internal end of the receptacle housing, and a sleeve retainer removably secured to the internal end of the receptacle housing and operable for providing access to the alignment sleeve from the internal end of the receptacle housing. The fiber optic receptacle further includes biasing member supports that facilitate loading and ensure alignment of at least one biasing member during assembly and use. Tapered posts may be provided on at least one of the alignment sleeve and the sleeve retainer for retaining and guiding the at least one biasing member during assembly and use.

Claims

1. A fiber optic receptacle comprising:

a receptacle housing defining an internal cavity opening through an external end and an opposed internal end, the external end configured to receive a corresponding fiber optic plug;

an alignment sleeve disposed within the internal cavity and received by the internal end of the receptacle housing, the alignment sleeve defining a lengthwise extending passageway between a first end and an opposed second end, the first end receiving and aligning a plug ferrule and the second end receiving and aligning a back-side ferrule; and

a sleeve retainer removably secured to the receptacle housing and operable for providing access to the internal cavity to insert and remove the alignment sleeve through the internal end of the receptacle housing.

2. The fiber optic receptacle of claim 1, further comprising at least one biasing member disposed within the internal cavity of the receptacle housing and positioned between the sleeve retainer and the alignment sleeve, the biasing member operably engaging the alignment sleeve so as to urge the alignment sleeve towards the external end of the receptacle housing.

3. The fiber optic receptacle of claim 2, wherein the biasing member comprises at least one linear spring.

4. The fiber optic receptacle of claim 2, further comprising at least one biasing member support defined by the alignment sleeve for supporting the at least one biasing member within the internal cavity of the receptacle housing.

5. The fiber optic receptacle of claim 4, wherein the biasing member support comprises at least one tapered post for retaining and guiding the at least one biasing member during assembly of the fiber optic receptacle.

6. The fiber optic receptacle of claim 1, wherein the alignment sleeve is inserted into and removed from the internal cavity of the receptacle housing when the sleeve retainer is not secured to the receptacle housing.

7. The fiber optic receptacle of claim 1, wherein the sleeve retainer defines means for securing the sleeve retainer to the internal end of the receptacle housing.

8. The fiber optic receptacle of claim 1, wherein the fiber optic receptacle is secured within an opening in a wall of an enclosure and wherein the wall of the enclosure is secured between a flange defined by the receptacle housing and a coupling nut secured to the receptacle housing opposite the flange.

9. The fiber optic receptacle of claim 8, further comprising an elastomeric gasket disposed between the flange and an exterior surface of the wall.

10. A fiber optic receptacle comprising:

a receptacle housing defining an internal end, an opposed external end and an internal cavity extending between the internal end and the external end;

an alignment sleeve received within the internal cavity through the internal end of the receptacle housing, the alignment sleeve defining a first end and an opposed second end, the first end receiving and aligning a plug ferrule and the second end receiving and aligning a back-side ferrule;

a removable sleeve retainer secured to the internal end of the receptacle housing adjacent the second end of the alignment sleeve, the sleeve retainer providing access to and retaining the alignment sleeve within the internal cavity of the receptacle housing;

a biasing member disposed within the receptacle housing, the biasing member engaging the alignment sleeve so as to urge the alignment sleeve in the direction of the external end of the receptacle housing; and

a biasing member support defined by at least one of the sleeve retainer and the alignment sleeve for retaining and guiding the biasing member within the receptacle housing.

11. The fiber optic receptacle of claim 10, wherein the biasing member and the alignment sleeve are operable to floatingly align the plug ferrule with the back-side ferrule.

12. The fiber optic receptacle of claim 10, wherein the biasing member comprises at least one linear spring.

13. The fiber optic receptacle of claim 10, wherein the biasing member support comprises at least one tapered post that retains and guides the biasing member during assembly of the fiber optic receptacle.

14. The fiber optic receptacle of claim 10, wherein the alignment sleeve is inserted into and removed from the internal cavity through the internal end of the receptacle housing when the sleeve retainer is removed from the receptacle housing.

15. The fiber optic receptacle of claim 10, wherein the sleeve retainer defines means for securing the sleeve retainer to the internal end of the receptacle housing.

16. The fiber optic receptacle of claim 15, wherein the securing means comprise at least one retaining clip that is received within a corresponding slot defined by the receptacle housing to secure the sleeve retainer to the receptacle housing.

17. The fiber optic receptacle of claim 10, wherein the sleeve retainer has at least one recess formed therein adjacent the biasing member support for aligning the alignment sleeve during assembly of the fiber optic receptacle.

18. The fiber optic receptacle of claim 10, wherein the receptacle housing is disposed within an opening in a wall of an enclosure and wherein the receptacle housing is secured to the wall of the enclosure through the opening by a flange defined by the receptacle housing adjacent an exterior surface of the wall and a coupling not secured to the receptacle housing opposite the flange adjacent an interior surface of the wall.

19. The fiber optic receptacle of claim 18, further comprising an elastomeric gasket disposed between the flange and the exterior surface of the wall.

20. A fiber optic receptacle comprising:

a receptacle housing defining an internal cavity opening through opposed external and internal ends, the receptacle housing comprising means for securing the fiber optic receptacle to a wall of an enclosure;

an alignment sleeve disposed within the internal cavity defined by the receptacle housing and received through the internal end, the alignment sleeve defining a lengthwise extending passageway opening through the external end for receiving and aligning a plug ferrule and opening through the internal end for receiving and aligning a back-side ferrule;

a sleeve retainer removably secured to the receptacle housing and operable for providing access to the internal cavity defined by the receptacle housing to insert and remove the alignment sleeve through the internal end and for retaining the alignment sleeve within the internal cavity; and

at least one biasing member positioned between the sleeve retainer and the alignment sleeve, the biasing member operably engaging the alignment sleeve so as to urge the alignment sleeve in the direction of the external end of the receptacle housing, and thereby to floatingly align the plug ferrule with the back-side ferrule.