# US 2025/0093589 A1 · Reversible polarity fiber optic connector

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- Number: US 2025/0093589 A1
- Document ID: US20250093589A1
- Status: Published application
- Kind: A1
- Application number: 18/964,287
- Filed: 2024-11-29
- Published: 2025-03-20
- Earliest claimed: 2019-11-20
- Assignees: Senko Advanced Components, Inc.
- Applicants: Senko Advanced Components, Inc.
- Inventors: Yim WONG; Siu Kei MA; Kazuyoshi TAKANO
- Web page: https://patentgrep.com/patent/US20250093589A1

## CPC

- G02B 6/3831: {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)}
- G02B 6/3851: {Ferrules having keying or coding means}
- G02B 6/3879: {Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs}
- 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 6/3893: {Push-pull type, e.g. snap-in, push-on}
- G02B 6/38875: {Protection from bending or twisting}
- G02B 6/3888: {Protection from over-extension or over-compression}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A reversible polarity fiber optic connector includes an outer housing having a front end, a rear end, and a receiving space defined between the front end and rear end; a ferrule assembly accommodated within the receiving space and configured to form an optical connection within a receptacle, the ferrule assembly including at least one ferrule protruding from the front end of the outer housing and configured to be coupled to the outer housing in a first orientation or a second orientation; and a boot assembly releasably connected to the rear end of the outer housing. The boot assembly further includes a latch configured to be releasably engaged with the outer housing. The latch includes a first tab configured to engage the boot assembly with the outer housing and a second tab configured to activate a disengage of the boot assembly from the outer housing.

## Claims

### Claim 1

A reversible polarity fiber optic connector comprising:
an outer housing having a front end, a rear end, and a receiving space defined between the front end and rear end;
a ferrule assembly accommodated within the receiving space and configured to form an optical connection with a receptacle, the ferrule assembly including at least one ferrule protruding from the front end of the outer housing and configured to couple to the outer housing in a first orientation or a second orientation; and
a boot assembly releasably connected to the rear end of the outer housing,
wherein the boot assembly includes a latch configured to be releasably engaged with the outer housing, and the latch includes a first tab configured to engage the boot assembly with the outer housing and a second tab configured to activate a disengage of the boot assembly from the outer housing.

### Claim 2 (depends on 1)

The reversible polarity fiber optic connector of claim 1, wherein the latch is configured to be deflectable and movable between a latched position and an unlatched position.

### Claim 3 (depends on 1)

The reversible polarity fiber optic connector of claim 1, wherein the first tab and second tab are provided on the side of the boot assembly and spaced from each other.

### Claim 4 (depends on 1)

The reversible polarity fiber optic connector of claim 1, the latch has a sufficient length such that the second tab is exposed from the outer housing when the latch is engaged with the outer housing.

### Claim 5 (depends on 1)

The reversible polarity fiber optic connector of claim 1, wherein the outer housing includes a polarity key to ensure the fiber optic connector is mated in a proper orientation.

### Claim 6 (depends on 2)

The reversible polarity fiber optic connector of claim 2, wherein the boot assembly includes a blocking portion configured to prevent unintentional withdrawal or movement of the latch.

### Claim 7 (depends on 1)

The reversible polarity fiber optic connector of claim 1, wherein the boot assembly includes a strain relief boot.

### Claim 8 (depends on 7)

The reversible polarity fiber optic connector of claim 7, wherein the stain relief boot includes a pull tab.

### Claim 9 (depends on 1)

The reversible polarity fiber optic connector of claim 1, wherein the ferrule assembly includes a first ferrule and a second ferrule.

### Claim 10 (depends on 9)

The reversible polarity fiber optic connector of claim 9. wherein each of the first and second ferrules is an LC-type ferrule.