Receptacle and associated method for permitting the selective withdrawal of a ferrule

• US 5,870,515 A
• Filed: 12/30/1997
• Issued: 02/09/1999
• Est. Priority Date: 06/06/1997
• Status: Expired due to Fees

• Current Assignee: Siecor Technology, Inc. (Corning Incorporated)
• Original Assignee: Siecor Corporation (Corning Incorporated)
• Inventors: Theuerkorn, Thomas, Ott, Michael J.
• Primary Examiner(s): Ngo, Hung N.
• Application Number:
  US08/001,091
• Time in Patent Office: 406 Days
• Field of Search: 385/59, 385/60, 385/66, 385/67, 385/68, 385/78, 385/134, 385/137
• US Class Current: 385/59
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3866 Devices, tools or methods for cleaning connectors cleaning in general B08B
• CPC Class Codes: G02B 6/3879 Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs

Abstract

The receptacle permits selected ones of the ferrules to be withdrawn from the receptacle without disconnecting the fiber optic connector from the receptacle and without disassembling the receptacle. As such, the ferrule that is withdrawn from the receptacle can be disconnected from the corresponding ferrule of the fiber optic connector assembly without disconnecting the other ferrules from the corresponding ferrules of the fiber optic connector assembly.

Claims

1. A receptacle for receiving a fiber optic connector assembly, the receptacle comprising:

a receptacle body adapted to be mounted in a fixed position, said receptacle body extending lengthwise between opposed forward and rear ends;

a ferrule holder disposed at least partially within said receptacle body, said ferrule holder defining a plurality of openings defining respective lengthwise extending axes;

a plurality of ferrules engaged within respective ones of the openings defined by said ferrule holder such that said ferrules are exposed through the forward end of said receptacle body for mating with corresponding ferrules of the fiber optic connector assembly; and

means for withdrawing one of said plurality of ferrules in a rearward direction along the respective lengthwise extending axis from the respective opening defined by said ferrule holder without disassembling the receptacle such that said withdrawn ferrule can be disconnected from the corresponding ferrule of the fiber optic connector assembly without disconnecting the other ferrules from the corresponding ferrules of the fiber optic connector assembly.

2. A receptacle according to claim 1 wherein said withdrawing means comprises a selector disposed rearward of said ferrule holder, said selector defining an opening that is at least as large as the size, in lateral cross-section, of the openings defined by said ferrule holder such that alignment of the opening defined by said selector with a respective opening defined by said ferrule holder permits the ferrule disposed within the respective opening to be withdrawn in a rearward direction.

3. A receptacle according to claim 2 wherein said selector is adapted to rotate relative to said ferrule holder in order to align the opening defined by the selector with a respective opening defined by the ferrule holder.

4. A receptacle according to claim 1 wherein those portions of the openings defined by said ferrule holder that extend rearward of said ferrules are at least as large, in lateral cross-section, as the respective ferrules such that said ferrules can be readily withdrawn in a rearward direction from the respective openings.

5. A receptacle according to claim 1 further comprising means for retaining said ferrules within the respective openings defined by said ferrule holder until said withdrawing means withdraws a respective ferrule from the respective opening defined by said ferrule holder.

6. A receptacle according to claim 5 wherein said retaining means comprises:

a plurality of springs disposed within respective ones of the openings defined by said ferrule holder, each spring being disposed rearward of a respective ferrule for urging the respective ferrule toward the forward end of said receptacle body; and

a spring holder disposed adjacent to and rearward of said ferrule holder for retaining said plurality of springs within the openings defined by said ferrule holder.

7. A receptacle according to claim 5 wherein said retaining means comprises a plurality of pins that extend through respective ones of the openings defined by said ferrule holder, each pin extending through a portion of a respective opening that is rearward of said ferrule disposed within the respective opening.

8. A receptacle according to claim 5 wherein said retaining means comprises a plurality of latches associated with respective ones of the openings defined by said ferrule holder, each latch being adapted to engage said ferrule disposed within the respective opening.

9. A receptacle for receiving a fiber optic connector assembly, the receptacle comprising:

a cylindrical ferrule holder extending lengthwise between opposed forward and rear ends, said ferrule holder defining a plurality of circumferentially spaced openings for receiving and holding a plurality of ferrules that mate with corresponding ferrules of the fiber optic connector assembly; and

a selector adapted to rotate relative to said ferrule holder for selecting one of the plurality of openings defined by said ferrule holder from which a ferrule is to be withdrawn, wherein said rotatable selector permits the ferrule to be withdrawn in a rearward direction from the selected opening without disassembling the receptacle such that the withdrawn ferrule can be disconnected from a corresponding ferrule of the fiber optic connector assembly without disconnecting the other ferrules from the corresponding ferrules of the fiber optic connector assembly.

10. A receptacle according to claim 9 wherein said selector is disposed rearward of said ferrule holder and defines an opening that is at least as large as the size, in lateral cross-section, of the openings defined by said ferrule holder such that alignment of the opening defined by said selector with a respective opening defined by said ferrule holder permits the ferrule disposed within the respective opening to be withdrawn in a rearward direction.

11. A receptacle according to claim 9 further comprising a plurality of ferrules disposed within respective ones of the openings defined by said ferrule holder such that said ferrules are exposed through the forward end of said ferrule holder for mating with corresponding ferrules of the fiber optic connector assembly.

12. A receptacle according to claim 11 wherein those portions of the openings defined by said ferrule holder that extend rearward of said ferrules are at least as large, in lateral cross-section, as the respective ferrules such that said ferrules can be readily withdrawn in a rearward direction from the respective openings.

13. A receptacle according to claim 11 further comprising means for retaining said ferrules within the respective openings defined by said ferrule holder until said selector permits a respective ferrule to be withdrawn from the respective opening defined by said ferrule holder.

14. A receptacle according to claim 13 wherein said retaining means comprises:

a plurality of springs disposed within respective ones of the openings defined by said ferrule holder, each spring being disposed rearward of a respective ferrule for urging the respective ferrule toward the forward end of said ferrule holder; and

a spring holder disposed adjacent to and rearward of said ferrule holder for retaining said plurality of springs within the openings defined by said ferrule holder.

15. A receptacle according to claim 9 further comprising a receptacle body adapted to be mounted in a fixed position, wherein said ferrule body and said selector are at least partially disposed within said receptacle body.

16. A method for selectively withdrawing a ferrule from a receptacle that is mated with a fiber optic connector assembly, the method comprising the steps of:

inserting a plurality of ferrules into respective ones of the openings defined by a ferrule holder such that said ferrules are exposed through a forward end of the receptacle;

mating the fiber optic connector assembly with the receptacle such that the plurality of ferrules exposed through the forward end of the receptacle are mated with corresponding ferrules of the fiber optic connector assembly; and

withdrawing one of the plurality of ferrules in a rearward direction from the respective opening defined by the ferrule holder without disassembling the receptacle, wherein said withdrawing step comprises disconnecting the withdrawn ferrule from the corresponding ferrule of the fiber optic connector assembly without disconnecting the other ferrules from the corresponding ferrules of the fiber optic connector assembly.

17. A method according to claim 16 wherein said withdrawing step further comprises selecting one of the plurality of openings defined by the ferrule holder from which a ferrule is to be withdrawn.

18. A method according to claim 17 wherein said selecting step comprises rotating a selector relative to the ferrule holder until an opening defined by the selector is aligned with the selected opening defined by the ferrule holder such that the ferrule disposed within the selected opening can be withdrawn through the opening defined by the selector.

19. A method according to claim 16 further comprising the step of retaining the ferrules within the respective openings defined by the ferrule holder prior to said withdrawing step.

20. A method according to claim 16 further comprising the step of reinserting a ferrule into the respective opening from which the ferrule was previously withdrawn so as to mate with the corresponding ferrule of the fiber optic connector assembly.