# US 2017/0285268 A1 · Fiber optic connector with polarity change

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- Number: US 2017/0285268 A1
- Document ID: US20170285268A1
- Status: Published application
- Kind: A1
- Application number: 15/626,723
- Filed: 2017-06-19
- Published: 2017-10-05
- Earliest claimed: 2011-05-04
- Assignees: The Siemon Company
- Applicants: The Siemon Company
- Inventors: Anthony Veatch; John A. Siemon; Johnny Zheng; Alex Yao; Scott Nagel
- Web page: https://patentgrep.com/patent/US20170285268A1

## CPC

- G02B 6/2726: {in or on light guides, e.g. polarisation means assembled in a light guide}
- 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 6/3879: {Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs}
- G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A fiber optic connector includes a boot receiving an optical fiber; a connector body for receiving the optical fiber and terminating the optical fiber; and a latch coupled to the connector body, the latch for engaging an adapter for receiving the fiber optic connector, the latch repositionable relative to the connector body to enable polarity change of the fiber optic connector without changing a relative position of the connector body and the optical fiber.

## Claims

### Claim 1

A fiber optic connector comprising:
a boot configured to receive an optical fiber;
a connector body configured to receive the optical fiber and terminate the optical fiber;
a fiber holder configured to receive the connector body, the fiber holder being a separate element from the connector body;
a latch coupled to the connector body, the latch being a separate element from the fiber holder, the latch repositionable relative to the fiber holder to enable polarity change of the fiber optic connector without changing a relative position of the connector body and the optical fiber;
wherein the latch comprises a latch arm configured to engage an opening in the adapter;
wherein the fiber holder is positioned at least partially in the boot.

### Claim 2 (depends on 1)

The fiber optic connector of claim 1 wherein:
the latch arm extends towards the boot.

### Claim 3 (depends on 1)

The fiber optic connector of claim 1 wherein:
the latch arm includes a collar for engaging the connector body, the collar rotatable relative to the connector body.

### Claim 4 (depends on 3)

The fiber optic connector of claim 3 wherein:
the connector body includes a cylindrical portion and the collar includes a cylindrical opening, the cylindrical opening positioned about the cylindrical portion.

### Claim 5 (depends on 4)

The fiber optic connector of claim 4 wherein:
the cylindrical portion includes a nub and the cylindrical opening includes an opening for receiving the nub to fix the orientation of the collar to the connector body.

### Claim 6 (depends on 1)

The fiber optic connector of claim 1 wherein:
the latch arm includes an opening at a distal end of the latch arm; and
the boot includes a hook positioned in the opening.

### Claim 7 (depends on 6)

The fiber optic connector of claim 6 wherein:
the opening in the latch arm includes a cam surface;
the hook traveling over the cam surface to deflect the latch towards the connector body.

### Claim 8 (depends on 7)

The fiber optic connector of claim 7 wherein:
the hook points towards the connector body.

### Claim 9 (depends on 1)

The fiber optic connector of claim 1 wherein:
the latch arm extends away from the boot towards a mating end of the connector body.

### Claim 10 (depends on 9)

The fiber optic connector of claim 9 further comprising:
a second connector body for receiving a second optical fiber and terminating the second optical fiber;
wherein the latch includes two arms, each arm positioned proximate to one of the connector body and the second connector body.

### Claim 11 (depends on 10)

The fiber optic connector of claim 10 further comprising:
a ridge positioned between the two arms;
the boot including a nub that coacts with the ridge to deflect the arms towards the connector body and second connector body.

### Claim 12 (depends on 10)

The fiber optic connector of claim 10 wherein:
the nub is mounted on a cover secured to the boot.

### Claim 13 (depends on 1)

The fiber optic connector of claim 1 wherein:
the boot includes a window, a polarity indicator visible through the window to indicate a polarity of the fiber optic connector.

### Claim 14 (depends on 1)

The fiber optic connector of claim 1 further comprising:
a fiber holder receiving the connector body, the fiber holder positioned at least partially in the boot.

### Claim 15 (depends on 14)

The fiber optic connector of claim 14 wherein:
the boot includes a window;
a polarity indicator on the fiber holder being visible through the window to indicate a polarity of the fiber optic connector.

### Claim 16 (depends on 1)

The fiber optic connector of claim 1 further comprising:
a polarity icon including polarity icon indicia, the polarity icon indicating a polarity of the fiber optic connector by a location of the polarity icon indicia.

### Claim 17 (depends on 16)

The fiber optic connector of claim 16 wherein:
the polarity icon includes polarity icon indicia on both sides of the polarity icon.

### Claim 18 (depends on 16)

The fiber optic connector of claim 16 wherein:
a portion of the boot is transparent, the polarity icon being viewable through the transparent portion.

### Claim 19 (depends on 18)

The fiber optic connector of claim 18 wherein:
the transparent portion is a cover of the boot.

### Claim 20 (depends on 14)

The fiber optic connector of claim 14 wherein:
the fiber holder includes at least one tab contacting the connector body to prevent rotation of the connector body.

### Claim 21 (depends on 14)

The fiber optic connector of claim 14 wherein:
the fiber holder includes a channel for receiving the connector body, the channel and the connector body shaped to prevent rotation of the connector.

### Claim 22

A fiber optic connector comprising:
a boot configured to receive an optical fiber;
a connector body configured to receive the optical fiber and terminate the optical fiber;
a fiber holder configured to receive the connector body, the fiber holder being a separate element from the connector body;
a latch coupled to the connector body, the latch being a separate element from the fiber holder, the latch repositionable relative to the ferrule to enable polarity change of the fiber optic connector without changing a relative position of the ferrule and the optical fiber;
wherein the latch comprises a latch arm configured to engage an opening in the adapter;
wherein the fiber holder is positioned at least partially in the boot.

### Claim 23

A fiber optic connector comprising:
a boot receiving two optical fibers;
a first connector body receiving a first optical fiber of the optical fibers;
a second connector body receiving a second optical fiber of the optical fibers;
a cover secured to the boot, the cover securing the first connector body and the second connector body to the boot, the cover removable to change polarity of the fiber optic connector.
