Fiber optic adapter with integrally molded ferrule alignment structure

Patent metadata

Field	Value
Publication number	US-10795090-B2
Application number	US-201916266636-A
Country	US
Kind code	B2
Filing date	Feb 4, 2019
Priority date	Aug 27, 2008
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

A fiber optic adapter is disclosed. The fiber optic adapter includes a main body configured to receive a first fiber optic connector through a first end and a second fiber optic connector through a second end for mating with the first fiber optic connector. The adapter includes a ferrule alignment structure located within an axial cavity of the main body, the ferrule alignment structure including a sleeve mount and a ferrule sleeve, the sleeve mount including an axial bore and at least one latching hook extending from a center portion of the sleeve mount toward the first end of the main body and at least one latching hook extending from the center portion toward the second end of the main body, the latching hooks configured to flex for releasably latching the first and second fiber optic connectors to the fiber optic adapter. The sleeve mount and the main body of the fiber optic adapter are unitarily molded as a single piece and the ferrule sleeve is separately placed within the axial bore of the sleeve mount.

First claim

What is claimed is:

1. A fiber optic adapter for interconnecting two fiber optic connectors in coaxial alignment, each connector including a generally cylindrical ferrule holding an end of an optical fiber, wherein the adapter includes a main body with an axial cavity extending between a first opening defined at a first end of the main body and a second opening defined at a second end of the main body, the first end configured to receive a first fiber optic connector through the first opening and the second end configured to receive a second fiber optic connector through the second opening for mating with the first fiber optic connector, the adapter further including a ferrule alignment structure located within the axial cavity, the ferrule alignment structure including a sleeve mount defining a first end, a second end, and a center portion, wherein the first end of the sleeve mount is positioned toward the first end of the main body and the second end of the sleeve mount is positioned toward the second end of the main body, the sleeve mount further defining an axial bore that defines a longitudinal axis extending from the first end of the sleeve mount toward the second end of the sleeve mount, the axial bore configured to receive and coaxially align the ferrules of the first and second fiber optic connectors when the connectors are inserted into the adapter, wherein the entire sleeve mount and the main body of the fiber optic adapter are unitarily molded as a single piece, wherein the sleeve mount includes a first portion extending from the center portion of the sleeve mount toward the first end of the sleeve mount and a second portion extending from the center portion of the sleeve mount toward the second end of the sleeve mount, wherein at least one of the first portion and the second portion of the sleeve mount is configured to flex out radially when receiving a ferrule-alignment sleeve into the axial bore from a respective end of the sleeve mount.

2. A fiber optic adapter according to claim 1 , wherein each of the first and second portions defines an inwardly extending finger for capturing the ferrule-alignment sleeve within the axial bore once the sleeve is received within the bore.

3. A fiber optic adapter according to claim 2 , wherein the inwardly extending finger of the first portion is positioned around the axial bore at a peripherally offset relationship with respect to the inwardly extending finger of the second portion along the longitudinal axis defined by the axial bore.

4. A fiber optic adapter according to claim 3 , wherein each of the first and second portions includes three inwardly extending fingers.

5. A fiber optic adapter according to claim 1 , wherein at least one of the first portion and the second portion of the sleeve mount defines flexible arms around the axial bore of the sleeve mount for receiving the ferrule-alignment sleeve, the flexible arms configured to flex out radially when receiving the ferrule-alignment sleeve into the axial bore.

6. A fiber optic adapter according to claim 5 , wherein the sleeve mount includes at least three of the flexible arms on at least one of the first portion and the second portion of the sleeve mount.

7. A fiber optic adapter according to claim 6 , wherein the sleeve mount includes at least three of the flexible arms on each of the first portion and the second portion of the sleeve mount.

8. A fiber optic adapter according to claim 1 , wherein the main body and the sleeve mount are unitarily molded out of a polymer.

9. A fiber optic adapter according to claim 1 , wherein the axial cavity is defined by a top side wall, a bottom side wall, a right side wall, and a left side wall of the main body of the adapter, an outwardly protruding mounting tab provided on each of the right side wall and the left side wall.

10. A fiber optic adapter according to claim 1 , wherein the fiber optic adapter is configured for interconnecting two SC-type fiber connectors in coaxial alignment.

11. A fiber optic adapter according to claim 1 , wherein the sleeve mount includes two latching hooks extending from the center portion of the sleeve mount toward the first end of the main body and two latching hooks extending from the center portion of the sleeve mount toward the second end of the main body, wherein the latching hooks extending toward the first end of the main body are positioned on opposite sides of the axial bore and are configured to flex toward and away from each other to releasably latch a first connector to the adapter, and the latching hooks extending toward the second end of the main body are positioned on opposite sides of the axial bore and are configured to flex toward and away from each other to releasably latch a second connector to the adapter.

12. A fiber optic adapter according to claim 1 , wherein both of the first and second portions of the sleeve mount are configured to flex out radially when receiving a ferrule-alignment sleeve into the axial bore from a respective end of the sleeve mount.

Assignees

• Commscope Technologies Llc

Inventors

• Nelson Keith

Classifications

• G02B6/3865

  fabricated by using moulding techniques (shaping techniques of plastic materials in general B29C; producing plastic optical fiber connectors B29D11/0075) · CPC title

• G02B6/3851

  Ferrules having keying or coding means · CPC title

• G02B6/3831

  comprising a keying element on the plug or adapter, e.g. to forbid wrong connection (keying element on the ferrule G02B6/3851; keying element for electrical coupling H01R13/64) · CPC title

• G02B6/3873

  Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls · CPC title

• G02B6/3874

  using tubes, sleeves to align ferrules · CPC title