# US 11,079,049 B2 · Connector with apparatus for relieving torsional strain on sealing elements

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- Number: US 11,079,049 B2
- Document ID: US11079049B2
- Status: Granted
- Kind: B2
- Application number: 16/563,219
- Filed: 2019-09-06
- Published: 2020-02-13
- Granted: 2021-08-03
- Earliest claimed: 2018-08-10
- Assignees: Petrotechnologies, Inc.
- Applicants: Petrotechnologies, Inc.
- Inventors: David Levy
- Web page: https://patentgrep.com/patent/US11079049B2

## CPC

- F16L 19/065: the wedging action being effected by means of a ring
- F16L 33/223: {the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts}
- F16L 15/007: {with more than one threaded section}
- F16L 21/065: {tightened by tangentially-arranged threaded pins}
- F16L 33/225: {a sleeve being movable axially}
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A connector which relieves a sealing element of torsional strain having a first threaded engagement, optionally, a second threaded engagement, a void therethrough for receiving a tube, and a sleeve positioned between each threaded engagement and the void. The sleeve relieves the tube of torsional strain from rotating the connector.

## Claims

### Claim 1

A connector for a tube comprising:
a first threaded engagement, wherein the first threaded engagement is in mechanical communication with a first sealing element;
a void therethrough for receiving a tube;
a sleeve positioned between the first threaded engagement and the void; and
a second threaded engagement and a second sleeve positioned between the second threaded engagement and the void;
wherein rotating the connector tightens the first threaded engagement and the second threaded engagement without applying torsional force to the tube and rotating the connector deforms the first sealing element without applying a torsional strain to the first sealing element.

### Claim 2 (depends on 1)

The connector of claim 1, wherein the second threaded engagement is in mechanical communication with a second sealing element.

### Claim 3 (depends on 2)

The connector of claim 2, wherein rotating the connector axially deforms the second sealing element without applying a torsional strain to the second sealing element.

### Claim 4 (depends on 1)

The connector of claim 1, wherein the first threaded engagement is oppositely threaded from the second threaded engagement.

### Claim 5 (depends on 4)

The connector of claim 4, wherein rotating the connector axially deforms the first sealing element without applying a torsional strain to the first sealing element and axially deforms the second sealing element without applying a torsional strain to the second sealing element.

### Claim 6 (depends on 1)

The connector of claim 1, wherein the first threaded engagement is in mechanical communication with the first sealing element and the second threaded engagement is in mechanical communication with a second sealing element.

### Claim 7

A method of creating a seal in a connector without torsional strain applied to the seal, wherein the method comprises the steps of:
a. sliding a connector on to a tube between a first element having a first threaded engagement and a second element having a second threaded engagement;
b. providing a sleeve within the connector adjacent the tube, wherein the sleeve prevents torsional force being applied to the tube;
c. providing a first deformable seal between the connector and the first element;
providing a second deformable seal between the connector and the second element;
d. rotating the connector, causing the connector and the first element to move toward one another and apply axial force to the first deformable seal, thereby deforming the first deformable seal without applying a torsional force; and
rotating the connector, causing the connector and the second element to move toward one another and apply axial force to the second deformable seal, thereby deforming the second deformable seal without applying a torsional force.