# US 11,079,555 B2 · Fiber management enclosure for a fiber optic connector assembly and method of use

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- Number: US 11,079,555 B2
- Document ID: US11079555B2
- Status: Granted
- Kind: B2
- Application number: 16/806,827
- Filed: 2020-03-02
- Published: 2020-09-03
- Granted: 2021-08-03
- Earliest claimed: 2019-03-02
- Assignees: Senko Advanced Components, Inc.
- Applicants: Senko Advanced Components Inc
- Inventors: Jimmy Jun Fu Chang; Kazuyoshi Takano; Takuya Ninomiya
- Web page: https://patentgrep.com/patent/US11079555B2

## CPC

- G02B 6/3878: {comprising a plurality of ferrules, branching and break-out means}
- G02B 6/3885: {Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448)}
- G02B 6/38875: {Protection from bending or twisting}
- G02B 6/4472: {Manifolds}
- G02B 6/3562: {Switch of the bypass type, i.e. enabling a change of path in a network, e.g. to bypass a failed element in the network}
- G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs}
- G02B 6/3845: {ferrules comprising functional elements, e.g. filters}
- G02B 6/387: {Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together}
- G02B 6/3893: {Push-pull type, e.g. snap-in, push-on}
- G02B 6/4454: {with splices}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A managed fiber optic connector assembly formed with an optical fiber management enclosure. The optical fiber management enclosure is formed with a back body as one-piece to form an integrated fiber optic management enclosure, or fiber optic management enclosure is inserted into the back body form a two-piece enclosure. The fiber management enclosure has a plural of channels, for example, an upper channel and a lower channel that retain, separate and guide a plural of optical fibers that are accepted through a port at a distal end of the managed fiber optic connector assembly.

## Claims

### Claim 1

An optical fiber management enclosure comprising:
a main body having a proximal end portion and a distal end portion spaced apart along a longitudinal axis and a width extending from a first lateral side portion to a second lateral side portion,
the distal end portion of the main body defining a port for accepting a plurality of optical fibers;
the main body further defining a plurality of upper channels extending from the port toward the proximal end portion of the main body, each upper channel having a proximal end, the proximal ends of the plurality of upper channels being spaced apart along the width of the main body;
the main body further comprising at least one lower channel extending from the proximal end of each upper channel to the proximal end portion of the main body;
wherein each upper channel is configured to guide at least two of the plurality of optical fibers from the distal port to the at least one lower channel extending from the proximal end of said upper channel, and
wherein the main body is configured to hold each of the plurality of optical fibers for being secured within a respective ferule adjacent the proximal end portion of the main body.

### Claim 2 (depends on 1)

The optical fiber management enclosure of claim 1, further comprising a back body having a cavity, the main body being configured to be secured within the cavity of the back body.

### Claim 3 (depends on 2)

The optical fiber management enclosure of claim 2, wherein the back body has a top surface, a bottom surface, a plurality of hooks at the top surface, and a plurality of hooks at the bottom surface.

### Claim 4 (depends on 3)

The optical fiber management enclosure of claim 3, further comprising an inner front body having a distal end portion defining recesses, wherein the plurality of hooks at the top surface and the plurality of hooks at the bottom surface are configured to latch into the recesses to connect the back body to the inner front body.

### Claim 5 (depends on 4)

The optical fiber management enclosure of claim 4, further comprising a strain relief boot for accepting the back body and a connector outer housing for accepting the inner front body, wherein the connector outer housing comprises a plurality of recesses, and wherein the stain relief boot comprises a plurality of hooks configured to be received in the recesses of the connector outer housing to connect the strain relief boot to the connector outer housing.

### Claim 6 (depends on 3)

The optical fiber management enclosure of claim 3, further comprising a plurality of inner front bodies, each inner front body having a distal end portion defining top and bottom recesses, each of the plurality of hooks at the top surface and a corresponding one of the plurality of hooks at the bottom surface being configured to latch into the top and bottom recesses of a respective one of the plurality of inner front bodies to connect the back body to the plurality of inner front bodies.

### Claim 7 (depends on 5)

The optical fiber management enclosure of claim 5, further comprising a connector outer housing configured to accept the plurality of inner front bodies.

### Claim 8 (depends on 6)

The optical fiber management enclosure of claim 6, further comprising a plurality of duplex ferrule assemblies, wherein each inner front body accepts a respective one of the duplex ferrule assemblies and holds the respective duplex ferrule assembly for accepting two optical fibers from a respective lower channel of the main body.

### Claim 9 (depends on 1)

The optic fiber management enclosure of claim 1, wherein the plurality of upper channels comprises a first upper channel and a second upper channel, the first upper channel and the second upper channel being substantially equal in length.

### Claim 10 (depends on 1)

The fiber optic management enclosure of claim 1, wherein the at least one lower channel extending from the proximal end of one upper channel comprises a first lower channel and a second lower channel, the first lower channel and the second lower channel being substantially equal in length.

### Claim 11 (depends on 1)

A fiber optic cable assembly comprising:
the optical fiber management enclosure of claim 1,
a back body having a cavity, the main body being configured to be secured within the cavity of the back body,
at least one inner front body defining a plurality of ferrule retention areas, the at least one inner front body being configured to latch with the back body to connect the back body to the at least one inner front body,
a connector outer housing configured to accept the at least one inner front body, and
a plurality of duplex ferrule assemblies, wherein each inner ferrule retention area accepts a respective one of the duplex ferrule assemblies and holds the respective duplex ferrule assembly for accepting two optical fibers from a respective lower channel of the main body.

### Claim 12 (depends on 11)

A system of fiber optic connectors comprising:
a plurality of fiber optic cable assemblies as set forth in claim 11, the plurality of fiber optic cable assemblies including a first fiber optic cable assembly and a second fiber optic cable assembly;
a trunk line interconnecting the first fiber optic cable assembly and the second fiber optic cable assembly to establish an optical connection between a first network and a second network; and
wherein said optical connection between the first network and the second network is devoid of MPO connectors and cassettes.

### Claim 13 (depends on 1)

The fiber optic management enclosure of claim 1, wherein the main body has a top and a bottom and each upper channel and each lower channel opens through the top of the main body.

### Claim 14 (depends on 13)

The fiber optic management enclosure of claim 13, wherein each upper channel has depth extending downward from the top toward the bottom of the main body and each lower channel has a depth extending downward from the top toward the bottom of the main body, the depth of each lower channel being greater than the depth of each upper channel.

### Claim 15 (depends on 14)

The fiber optic management enclosure of claim 14, wherein the depth of each lower channel increases as the lower channel extends from the proximal end of the respective upper channel toward the proximal end portion of the main body.

### Claim 16 (depends on 15)

The fiber optic management enclosure of claim 15, wherein each lower channel is configured to hold first and second optical fibers of the plurality of optical fibers such that the respective first and second optical fibers extend proximally from the proximal end portion of the main body at spaced apart locations along the depth of the lower channel.

### Claim 17 (depends on 1)

The fiber optic management enclosure of claim 1, wherein the main body has a top and a bottom and a thickness extending from the top to the bottom.

### Claim 18 (depends on 17)

The fiber optic management enclosure of claim 17, wherein each lower channel is configured to hold first and second optical fibers of the plurality of optical fibers such that the respective first and second optical fibers extend proximally from the proximal end portion of the main body at spaced apart locations along the thickness.

### Claim 19 (depends on 17)

The fiber optic management enclosure of claim 17, wherein the thickness tapers from the proximal end portion to the distal end portion.

### Claim 20 (depends on 1)

The fiber optic management enclosure of claim 1, wherein the at least one lower channel extending from the proximal end of each upper channel comprises first and second lower channels, the first and second lower channels extending from the proximal end of each upper channel diverging along the width of the main body as the first and second lower channels extend along the longitudinal axis from the proximal end of the respective upper channel through the proximal end portion of the main body.