# US 11,029,471 B2 · Optical connector and contacting element for an optical connector

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- Number: US 11,029,471 B2
- Document ID: US11029471B2
- Status: Granted
- Kind: B2
- Application number: 16/093,475
- Filed: 2017-04-10
- Published: 2020-10-15
- Granted: 2021-06-08
- Earliest claimed: 2016-04-14
- Assignees: Interlemo Holding S.A.
- Applicants: Interlemo Holding S.A.
- Inventors: Alexandre Patenaude
- Web page: https://patentgrep.com/patent/US11029471B2

## CPC

- G02B 6/3874: {using tubes, sleeves to align ferrules}
- G02B 6/3878: {comprising a plurality of ferrules, branching and break-out means}
- G02B 6/3817: {containing optical and electrical conductors (cables including electrical and optical conductors H01B11/22; G02B6/3816 takes precedence)}
- G02B 6/3869: {Mounting ferrules to connector body, i.e. plugs}
- G02B 6/387: {Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together}
- G02B 6/3821: {with axial spring biasing or loading means (G02B6/3847 takes precedence)}
- G02B 6/3825: {with an intermediate part, e.g. adapter, receptacle, linking two plugs}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

The invention relates to a contacting element (1) for an optical fibre connector, said contacting element being made up of a front part (2), in which a ferrule (4) is accommodated and secured, and a rear part (3), in which a spring (5) is accommodated, said rear part being shaped to permit the through-passage of an optical fibre.

## Claims

### Claim 1

A contacting element for a connector for optical fibers, comprising a front part, within which a ferrule is lodged and fixed, a rear part within which a spring is lodged, and an alignment tube, the rear part being formed to allow the through-passage of an optical fiber, the front part being movably fixed to the rear part, the front part adapted to be inserted at least partially within the rear part so that the spring pushes the front part and the rear part in opposite directions, the front part being provided with a locking portion formed so as to allow coupling in a fixed but separable position with an end of the alignment tube, wherein said locking portion comprises a groove or protuberance extending around the circumference of said front part, interrupted by at least one longitudinal slot.

### Claim 2 (depends on 1)

The contacting element of claim 1, wherein said groove is adjacent to a lip, said lip protruding with respect to said groove.

### Claim 3 (depends on 1)

The contacting element of claim 1, wherein said rear part has a recess, the bottom of said recess having at least one anti-rotation surface.

### Claim 4 (depends on 1)

The contacting element of claim 1, wherein the front part is at least partially inserted into the rear part, the spring being arranged in the interior of the rear part in compression against a rear end of the front part.

### Claim 5 (depends on 4)

The contacting element of claim 4, wherein the rear part comprises at least one claw which cooperates with a gripping shoulder formed in the front part to hold the front part integral with the rear part.

### Claim 6

A connector for optical fibers, comprising a housing and at least one contacting element mounted in the housing, the contacting element comprising a front part, within which a ferrule is lodged and fixed, a rear part within which a spring is lodged, and an alignment tube, the rear part being formed to allow the through-passage of an optical fiber, the front part being movably fixed to the rear part, the front part adapted to be inserted at least partially within the rear part so that the spring pushes the front part and the rear part in opposite directions, the front part being provided with a locking portion formed so as to allow coupling in a fixed but separable position with an end of the alignment tube, wherein the connector comprises a plurality of said contacting elements and wherein the housing comprises a body supporting the plurality of contacting elements and optionally electrical terminals, and a shell assembled to the body.

### Claim 7

A connector for optical fibers, comprising a housing and at least one contacting element mounted in the housing, the contacting element comprising a front part, within which a ferrule is lodged and fixed, a rear part within which a spring is lodged, and an alignment tube, the rear part being formed to allow the through-passage of an optical fiber, the front part being movably fixed to the rear part, the front part adapted to be inserted at least partially within the rear part so that the spring pushes the front part and the rear part in opposite directions, the front part being provided with a locking portion formed so as to allow coupling in a fixed but separable position with an end of the alignment tube, wherein the housing comprises a support body comprising at least one lodging cavity supporting and positioning the at least one contacting element in the housing, each lodging cavity comprising a lateral slot allowing lateral insertion of each contacting element into its respective lodging cavity, an anti-rotation guide running along the slot cooperating with an anti-rotation surface of the contacting element in order to block the rotation thereof when it is inserted into the support body.

### Claim 8 (depends on 7)

The connector of claim 7, wherein the support body comprises a rail inserted into a recess of the rear part to block the axial position of the rear part with respect to the housing.