# US 11,971,581 B2 · Optical fibre cable connector assembly

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- Number: US 11,971,581 B2
- Document ID: US11971581B2
- Status: Granted
- Kind: B2
- Application number: 17/256,013
- Filed: 2019-11-14
- Published: 2021-08-26
- Granted: 2024-04-30
- Earliest claimed: 2018-11-14
- Assignees: Sterlite Technologies Limited
- Applicants: Sterlite Technologies Limited
- Inventors: Chris Taylor
- Web page: https://patentgrep.com/patent/US11971581B2

## CPC

- G02B 6/3887: {Anchoring optical cables to connector housings, e.g. strain relief features}
- G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs}
- G02B 6/4401: {Optical cables (glass fibres with a protective coating G02B6/02395)}
- H02G 3/06: Joints for connecting lengths of protective tubing {or channels}, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
- H02G 15/013: Sealing means for cable inlets (inlets for cables filled with, or surrounded by, gas or oil H02G15/32)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES

## Abstract

The present disclosure provides a protected cable connector assembly. The protected cable connector assembly includes a cable gland body, a gland nut, a grommet, an optical fibre cable, a protected connector and a protective grip. The cable gland body includes a first threaded portion, a second threaded portion and an unthreaded portion. The gland nut includes internal threads. In addition, the internal threads of the gland nut engage with threads of the first threaded portion of the cable gland body. Further, a total length of the gland nut is about 17.87 millimeters. The grommet is positioned partially inside the cable gland body. The protected cable connector enables the optical fibre cable to terminate into an optical fibre distribution box.

## Claims

### Claim 1

A protected cable connector assembly comprising:
a cable gland body, wherein the cable gland body is a hollow cylindrical body, wherein the cable gland body comprises a first threaded portion, a second threaded portion and an unthreaded portion, wherein the first threaded portion corresponds to external threads over periphery of a first substantially cylindrical cross section of the cable gland body, wherein the second threaded portion is at a second end of the first substantially cylindrical cross section of the cable gland body, wherein the second threaded portion corresponds to external threads over periphery of the first substantially cylindrical cross section of the cable gland body, wherein the unthreaded portion of the cable gland body corresponds to central non-threaded portion between the first threaded portion and the second threaded portion;
a gland nut, wherein the gland nut is a hollow cylindrical body, the gland nut comprises internal threads, wherein the internal threads of the gland nut engage with threads of the first threaded portion of the cable gland body, wherein the gland nut is characterized by a total length, wherein the total length of the gland nut is 17.87 millimeters;
a grommet, wherein the grommet is positioned partially inside the cable gland body, wherein the grommet facilitates the protected cable connector assembly to hold an optical fibre cable firmly, wherein the grommet is positioned partially inside the first end of the cable gland body, wherein the grommet seals the first end of the cable gland body as the gland nut is fastened on the first threaded portion of the cable gland body, wherein the grommet has a cylindrical shape with a hollow circular cavity;
the protected connector, wherein the protected connector is affixed at a first open end of the optical fibre cable, wherein the protected cable connector enables the optical fibre cable to terminate into an optical fibre distribution box, the protected connector is affixed to a first end of the optical fibre cable;
the optical fibre cable, wherein the optical fibre cable comprising the first open end, wherein the first open end of the optical fibre cable is terminated into the fibre distribution box, wherein the protected connector is affixed at the first open end of the optical fibre cable, wherein the protected connector aligns the optical fibre cable (110) with optical transmission element of the fibre distribution box; and
a protective grip, wherein the protective grip is a robust outer covering of the protected cable connector assembly, wherein the protective grip prevents components of the protected cable connector assembly from slipping down the optical fibre cable,
wherein the protected cable connector assembly ensures proper alignment of the optical fibre cable to minimize optical loses, wherein the protected cable connector assembly ensures efficient axial alignment of optical fibres of the optical fibre cable, wherein the protected cable connector assembly is characterized by a diameter, wherein the diameter of the protected cable connector assembly is 20.4 millimeters, wherein the protected cable connector assembly enables improvement in a plurality of characteristics of the protected connector, wherein the plurality of properties of the protected connector comprises mechanical characteristics, optical characteristics and physical characteristics.

### Claim 2 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the protected cable connector assembly further comprising the fibre distribution box, wherein the fibre distribution box comprises an adapter, wherein the adapter facilitates termination of the optical fibre cable into the fibre distribution box.

### Claim 3 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the cable gland body is fastened with the fibre distribution box for enabling engagement of the protected connector and an adapter.

### Claim 4 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the optical fibre cable is received through the grommet into the cable gland body, wherein the optical fibre cable is received through the grommet when the gland nut is loose, wherein the gland nut is fastened on the cable gland body to enable the grommet to completely seal and grip the optical fibre cable.

### Claim 5 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the cable gland body is fastened with the fibre distribution box for enabling a protective housing for the protected connector, wherein the protective housing of the protected connector eliminates transmission losses occurring during termination of the optical fibre cable.

### Claim 6 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the cable gland body is characterized by a first length, a second length and a third length, wherein the first length is length of the first threaded portion of the cable gland body, wherein the first length is measured from the first end of the cable gland body to first end of the unthreaded portion, wherein the second length is length of the unthreaded portion of the cable gland body, wherein the second length is measured from the second end of the cable gland body to second end of the unthreaded portion, wherein the third length is length of the second threaded portion of the cable gland body, wherein the first length of the cable gland body is 17.87 millimeters, wherein the third length of the cable gland body is 10 millimeters, wherein sum of the first length, the second length and the third length is a total length of the cable gland body, wherein the total length of the cable gland body is 55 millimeters.

### Claim 7 (depends on 1)

The protected cable connector assembly as claimed in claim 1, wherein the protected connector is characterized by negligible transmission loss due to reflection or misalignment of optical fibres, wherein the protected connector aligns the optical fibre cable with optical transmission element of the fibre distribution box.